HAZARDOUS LOCATIONS
HUMIDITY
Kele Has You Covered With Hard-to-Source Items
Designed for Hazardous Environments.
L4 | p. 465
HZLIM | p. 450
MTL5000 | p. 474
TT881 | p. 445
EPETD8S | p. 452
K1 | p. 456
HAZARDOUS
LOCATIONS
HAZARDOUS LOCATIONS
Products manufactured
in the United States
Products that are
new to the catalog
MODEL/SERIESPAGE
Alarms and Control Stations for Hazardous Locations
878EX, 879EX, 116EXMST — Explosion Proof Horns & Strobes . . . . . . . . . . 479
HL600 Series — Hazardous Location Control Stations . . . . . . . . . . . . . . . . . . 480
Conduit Seals and Fittings for Hazardous Locations
EYM Series — Close-up Plugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PLG50 Series — Close-up Plugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC1A — Kwiko® Sealing Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACK6F — Kwiko® Twinpak Sealing Cement. . . . . . . . . . . . . . . . . . . . . . . . . . .
F01 — Fiber Filler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC1F01A — Kwiko® Sealing Cement and Fiber Filler Kits. . . . . . . . . . . . . . . .
SPXCD | p. 466
Enclosures and Accessories for Hazardous Locations
CXJ Series — Explosion Proof Custom Control Stations. . . . . . . . . . . . . . . . .
AXJ, XJAT Series — Explosion Proof Enclosures. . . . . . . . . . . . . . . . . . . . . .
MA8, MC6/7, MP6/7 Series — Schneider Electric Explosion Proof Actuator
Enclosure (for Valves and Dampers). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ZS-260 — Explosion Proof Direct Coupled Actuator Enclosure
(for Dampers). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GRT Series — Explosion Proof Outlet Box. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flow and Level Monitoring for Hazardous Locations
IL10 Series — Intrinsically Safe Level Transmitter . . . . . . . . . . . . . . . . . . . . . .
FS7-4E — Explosion Proof Water Flow Switch. . . . . . . . . . . . . . . . . . . . . . . . .
EchoSafe — Flowline Explosion Proof Level Transmitter. . . . . . . . . . . . . . . . .
ELP — Flowline Intrinsically Safe Ultrasonic Level Transmitter. . . . . . . . . . . . .
L4 — Explosion Proof Float Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V4-2-U — Explosion Proof Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELP | p. 463
488
488
489
489
489
489
481
482
484
487
488
455
462
460
463
465
465
Intrinsic Safety Barriers for Hazardous Locations
MTL5000, MTL7000, MTL7700 Series — Intrinsic Safety Barriers . . . . . . . . . 474
Pressure Sensors and Switches for Hazardous Locations
K1 Series — Intrinsically Safe Pressure Transmitter . . . . . . . . . . . . . . . . . . . . 456
IXLdp — Ashcroft Intrinsically Safe Differential Pressure Transmitter. . . . . . . . 457
1950G Series — Explosion Proof Air Differential Pressure Switch. . . . . . . . . . 459
ST-X | p. 442
Specialty Sensors for Hazardous Locations
SPXCD Series — Explosion Proof Gas Monitor / Transmitter . . . . . . . . . . . . . 466
30-3003D — Det-tronics Explosion Proof Duct Smoke Detector . . . . . . . . . . . 468
550-X — Balmac Vibration Transmitter / Switch . . . . . . . . . . . . . . . . . . . . . . . . 470
140T- Hazardous — Intrinsically Safe Vibration Transmitter. . . . . . . . . . . . . . .472
10316H2176 — Explosion Proof Whisker Switch . . . . . . . . . . . . . . . . . . . . . . . 478
HAZARDOUS
L O C AT I O N S
Temperature Controls for Hazardous Locations
HZLIM Series — Explosion Proof High and Low Limit Controls. . . . . . . . . . . .
EPETD8S, T6051B1006 — Explosion Proof Thermostats . . . . . . . . . . . . . . . .
A19AUC-2 — Explosion Proof Bulb Thermostat. . . . . . . . . . . . . . . . . . . . . . . .
HLT Series — Explosion Proof Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . .
kele.com
Temperature and Humidity Sensors for Hazardous Locations
ST-X Series — Precon Explosion Proof Room Temperature Sensor. . . . . . . .
TT211 — Minco Intrinsically Safe RTD Transmitter. . . . . . . . . . . . . . . . . . . . . .
TT881 — Minco Explosion Proof Platinum RTD Transmitter. . . . . . . . . . . . . . .
HT880 Series — Minco Explosion Proof / Intrinsically Safe Humidity and
Temperature Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HHT Series — Explosion Proof / Intrinsically Safe Humidity & Temperature
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
450
452
453
454
442
443
445
447
449
NEW!
HAZARDOUS LOCATIONS
APPLICATION GUIDE
The Application Guide below is a quick reference guide to applying Kele automation system interface devices
in hazardous locations. Additional information on an explosion proof and instrinsically safe systems can be
found in the Technical Reference section at the back of this catalog.The Application Guide covers the most
common applications based upon customer requests and is not intended to be all-inclusive. If the application
desired is not listed, please contact Kele for assistance at 888-397-KELE (5353)
8
HAZARDOUS LOCATIONS
Notes:
1. Dry contacts, thermistors, RTDs, and other devices conforming to the definition of “simple apparatus” require that the sensing circuit limit the applied voltage and current to 1.2V
and 100 mA maximum. Power dissipation and stored energy in the hazardous area must be limited to 25 mW and 20 mJ. Switches, thermistors, and RTDs used to sense ambient
conditions may generally be given a temperature rating of T6 (185°F/85°C), but they must always be checked against the ignition temperature of the hazardous atmosphere.
2. AXJ and XJAT enclosures are available in a wide range of sizes and configurations. If the project calls for something other than the standard products shown in this catalog,
contact Kele for availability of custom configurations.
March 2014
WE MAKE IT EASY.
kele.com
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441
NEW!
HAZARDOUS LOCATIONS
PRECON EXPLOSION PROOF ROOM TEMPERATURE SENSOR
ST-X SERIES
DESCRIPTION
The Precon Model ST-X explosion proof room
temperature sensor provides accurate space temperature
sensing in a compact, unobtrusive housing suitable for
wall mounting. The all aluminum NEMA 7 / NEMA 9
enclosure minimizes time lag and allows installation in most
atmospheres containing flammable gases or dusts (Groups
C, D, E, F, G).
TM
FEATURES
• Class I, Division 1, Group C, D; Class II, Division 1,
Groups E, F, G
• NEMA 7CD, 9EFG
• RTD or thermistor styles available
• E-Z mount (1/2" NPT conduit entries top and bottom)
• Compact, unobtrusive package
ST-X
8
HAZARDOUS LOCATIONS
SPECIFICATIONS
Accuracy
Thermistor
±0.36°F (0.2°C)
Type 63
±0.72°F (0.40°C)
Type 71
±0.054°F (0.03°C)
Type 81 and 85
±0.48°F (0.27°C) @ 32°F (0°C)
Type 91
±0.91°F (0.46°C) @ 32°F (0°C)
Lead Wires
#24 AWG, 8'L (2.4m)
Materials Of Construction
Copper-free aluminum enclosure
Sensor Type
Thermistor, Platinum thin film RTD
Temperature Range
-30° to 240°F (-34° to 115°C)
Dimensions
5.75"H x 1.63"W x 2.13"D
(14.1 x 4.1 x 5.2 cm)
Weight
0.75 lb (0.34 kg)
Warranty
1 year
CAUTION: Conduit seal MUST be installed within
code-required distance from sensor to maintain
explosion proof rating.
WARNING: This device is not listed for use in areas
classified as Group A (acetylene) or Group B
(hydrogen and others). Where temperature sensing in
these areas is required, an intrinsically safe system
using the Model TT211 transmitter is recommended.
ORDERING INFORMATION
MODEL
ST-X3
ST-X21
ST-X22
ST-X24
ST-X27
ST-X42
ST-X63
ST-X71
ST-X81
ST-X85
ST-X91
442
888-397-5353 USA
DESCRIPTION
10,000Ω thermistor @ 77°F (25°C), Type III material (gray leads)
2252Ω thermistor @ 77°F (25°C), Type II material (green leads)
3000Ω thermistor @ 77°F (25°C), Type II material (blue leads)
10,000Ω thermistor @ 77°F (25°C), Type II material (yellow leads)
100,000Ω thermistor @ 77°F (25°C), Type II material (gray leads)
20,000Ω thermistor @ 77°F (25°C), Type IV material (green leads)
1000Ω nickel RTD @ 70°F (21°C) (yellow leads)
100Ω high accuracy RTD @ 32°F (0°C), 0.00385 Ω/Ω/°C (yellow leads)
100Ω RTD @ 32°F (0°C), 0.00385 Ω/Ω/°C (yellow leads)
1000Ω RTD @ 32°F (0°C), 0.00385 Ω/Ω/°C (blue leads)
1000Ω RTD @ 32°F (0°C), 0.00375 Ω/Ω/°C (green leads)
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
MINCO INTRINSICALLY SAFE RTD TRANSMITTER
TT211
DESCRIPTION
The Minco Model TT211 intrinsically safe RTD transmitter
takes a standard RTD input and provides an accurate 4-20
mA output over any of three factory-calibrated temperature
ranges. When coupled with a Model MTL7706 Safety Barrier
and appropriate cabling, both the Model TT211 and the RTD
are suitable for use in hazardous locations without the use of
explosion proof enclosures.
FEATURES
• Class I, Division 1, Groups A, B, C, D with intrinsic
safety barrier
• Nonincendive for use in Class I Division 2 areas
without barrier
• Accuracy ±0.1% of span
• Compact size
• Epoxy potted for moisture resistance
• Zero and span adjustable to ±5% of span
C
FM
US
APPROVED
TT211
8
Supply Voltage
Input
Operating Humidity
Thermal Effect
8.5-35 VDC
Platinum RTD, 100Ω (0.00385
Ω/Ω/°C)
Configuration
Two-wire, loop powered
Output
4-20 mA
Linearity
(accuracy) ±0.1% of span
Maximum Output Impedance
775Ω @ 24 VDC, 575Ω @ 20 VDC,
325Ω @ 15 VDC
Operating Temperature-13° to 185°F (-25° to 85°C)
Area
Entity Parameters
Weight
Approvals
Warranty
0% to 100% non-condensing
±0.007% of span per °F (± 0.013%
per℃)
Intrinsically safe Class I, Division 1,
Groups A,B,C,D
Vmax: 25V; Imax: 150 mA; Ci: 0µF;
Li: 0 mH
0.75 lb (0.34 kg)
FM approved
3 years
HAZARDOUS LOCATIONS
SPECIFICATIONS
DIMENSIONS
in
(cm)
0.5
(1.27)
0.08
(0.20)
1.0
(2.54)
0.25
(6.4)
0.15 (0.38) I.D.
through
1.5
(3.81)
March 2014
0.68
(1.71)
1.09
(2.71)
Mounting: Use #6 screw
through or #8 thread forming screw
WE MAKE IT EASY.
kele.com
888-397-5353 USA
443
NEW!
HAZARDOUS LOCATIONS
MINCO INTRINSICALLY SAFE RTD TRANSMITTER
TT211
CAUTION: Intrinsically safe devices require the use of an intrinsic safety barrier when applied in hazardous locations.
Provide wiring and grounding strictly in accordance with manufacturer’s instructions. When the Model TT211
transmitter is combined with the Model MTL7706+ intrinsic safety barrier, total cable capacitance between the two
must be limited to 0.12 µF, and total cable inductance must be limited to 4.0 mH (equivalent to 2200'/823m maximum
Belden® #8760 18/2 shielded twisted pair cable 0.18 µH/FT, 44 pF/FT).
WIRING
RTD
8
Hazardous
Area
4
3
2
1
MTL7706+
Intrinsically Safe Barrier
Safe Area
3
4-20 mA 4
Power Bus
20-35 VDC
1
2
250Ω 1-5V
HAZARDOUS LOCATIONS
TT211
Maximum Cable
C = 0.12 µF
L = 4.0 mH
ORDERING INFORMATION
MODEL DESCRIPTION
TT211
Intrinsically-safe RTD transmitter
PD
For 100Ω platinum RTD, TCR=0.00385 Ω/Ω/°C
PW For 1000Ω platinum RTD, TCR=0.00375 Ω/Ω/°C
RANGE
1EN -20° to 140°F (-28.9° to 60°C)
1S
0° to 100°F (-17.8° to 37.8°C)
1BN 30° to 240°F (-1.1° to 115.6°C)
TT211
PW
250R-3-1
DCP-1.5-W
MTL7706+
ST-A81
ST-A91
ST-D81
ST-D91
ST-S81
ST-S91
ST-W81
ST-W91
444
Ground Here Only
888-397-5353 USA
1EN
Note: Contact Kele for additional
ranges and RTD types.
Example: TT211-PW-1EN Transmitter with range of -20° to 140°F (-28.9° to 60°C)
for 1000Ω platinum RTD (TCR=0.00375 Ω/Ω/°C)
RELATED PRODUCTS
250Ω 3 WATT 1% Resistor Long Leads
Power supply, 24 VAC IN to 24 VDC OUT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
100Ω platinum RTD all-purpose temperature probe
1000Ω platinum RTD all-purpose temperature probe
100Ω platinum RTD duct temperature sensor
1000Ω platinum RTD duct temperature sensor
100Ω platinum RTD space temperature sensor
1000Ω platinum RTD space temperature sensor
100Ω platinum immersion temperature probe
1000Ω platinum immersion temperature probe
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
PAGE
1299
995
474
1197
1197
1184
1184
1211
1211
March 2014
NEW!
HAZARDOUS LOCATIONS
MINCO EXPLOSION PROOF PLATINUM RTD TRANSMITTER
TT881
DESCRIPTION
The Minco Model TT881 explosion proof platinum RTD
transmitter is designed for temperature measurement in
applications calling for a rugged industrial housing. This RTD
transmitter may be ordered for 100 ohm and 1000 ohm 385
platinum RTD or 1000 ohm 375 platinum RTD.
FEATURES
•
•
•
•
•
•
•
•
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
NEMA 4X, 7BCD, 9EFG
Availible in 100Ω or 1000Ω RTDs
High RFI/EMI immunity
NIST certificate available
4-20 mA loop powered
Substitute replacement for discontinued HCT-881
Hy-Cal transmitters
C
FM
TT881-A with Probe
8
TT881
Accuracy
Rangeability
Zero
Span
Zero Span Adjust
Output
Input Voltage Effect
10-35 VDC (reverse polarity
protector)
±0.01% of span
-58° to 122°F (-50° to 50°C)
45° to 1080°F (25° to 600°C)
Noninteractive
4-20 mA, two-wire standard
0.001% of span/volt max (negligible)
for 10-45 VDC
Linearity
±0.2% of span for any range from
-58° to 1022°F (-50° to 550°C)
Temperature Coefficient
±0.002% of span/°C
Housing Type
NEMA 4X, FM approved, explosionproof Class I, Div 1, Groups B, C, D;
Class II, Div 1, Groups E, F, G
Terminations
Terminal Screws
Mounting
Immersion
Includes an integral sensor mounted
via 1/2” NPT threads with 1/4” probe
Wall/Pipe
Mounting hardware available for
surface installations with accessory
AC103168
Maximum Load
(Supply voltage - 10 VDC) / 0.02A,
i.e., (24-10 VDC) / 0.02 = 700Ω
SENSOR
Temperature Range
-58° to 500°F (-50° to 260°C)
March 2014
Sensing Element
PD 100Ω, 385 platinum, three-wire
sensor 0.00385 Ω/Ω/°C
PF 1000Ω, 385 platinum, two-wire
sensor 0.00385 Ω/Ω/°C
PW 1000Ω, 375 platinum, two-wire
sensor 0.00375 Ω/Ω/°C
Ice Point Resistance [Ro]
100Ω ±0.1Ω, ±0.12%
1000Ω ±1Ω, ±0.12%
Stability
Better than 0.25°C per year
Insulation Resistance Sheath: 500°F (260°C), 100 mΩ @
50 VDC min
Probe Material
Stainless steel body
Area
Explosion proof Class I, Div 1,
Groups B, C, D; Class II, Div 1,
Groups E, F, G; NEMA 4X with
thermowell; without thermowell,
explosion proof indoor only Factory
Mutual, File #3012833
Pressure
2750 psig (18,961 kPa) max @
500°F
Operating Temperature-40° to 185°F (-40° to 85°C)
noncondensing
Standard Length
5.5”L (13.97 cm), 0.25” (0.64 cm)
probe, 1/2” NPT mounting
Approvals
FM
Weight (5.5” length)
5.6 lb (2.54 kg)
Warranty
3 years
WE MAKE IT EASY.
kele.com
888-397-5353 USA
HAZARDOUS LOCATIONS
SPECIFICATIONS
Supply Voltage
US
APPROVED
445
NEW!
HAZARDOUS LOCATIONS
MINCO EXPLOSION PROOF PLATINUM RTD TRANSMITTER
TT881
DIMENSIONS
in
(cm)
4.25
(10.80)
3.7
(9.4)
+
1.5
(3.81)
Zero and Span
Adjustments under
cover
Wall Mount
(AC103168 Option)
5.5
(13.97)
RTD
–
Power Supply
10 to 45 VDC
4-20 mA
Signal
TT881
CAUTION: Conduit seal MUST be installed within code-required distance from junction box to maintain explosion
proof rating. For Group B and C atmospheres, conduit seals must be installed within 2” (5.08 cm) of the enclosure
regardless of less stringent code requirements.
WARNING: All circuits MUST be de-energized before opening the cover of this device for any purpose, including
resetting a manual reset controller or adjusting a set point. If work must be performed with an energized circuit, the
atmosphere inside and outside the enclosure must be proven safe with a listed intrinsically safe combustible gas
detector.
HAZARDOUS LOCATIONS
8
ORDERING INFORMATION
DEL
* TT881
DESC PT N
Assembly probe for two-wire RTDs
* PD 100Ω 0.00385 Ω/Ω/°C platinum curve, 6" leads
PF 1000Ω 0.00385 Ω/Ω/°C platinum curve, 6" leads
* PW 1000Ω 0.00375 Ω/Ω/°C platinum curve, 6" leads
LLL Length LLL in .1" increments 055 = 5.5", 120 = 12.0"
E
Duct mount, NEMA 4X box, LLL typically 8.0"
* P
Immersion, NEMA 4X box, LLL typically 5.5" for 6" well insertion
W Wall mount, NEMA 4X box, LLL typically 2.0"
1 4-20 mA DC output
EN Range codes per Minco letter ranges (-20°/140°F) or (-29°/60°C)
Range codes per Minco letter ranges (0°/100°F) or (-18°/38°C)
* S
N
Range codes per Minco letter ranges (32°/122°F) or (0°/50°C)
H
Range codes per Minco letter ranges (40°/90°F) or (4°/32°C)
C
Range codes per Minco letter ranges (0°/100°C)
-Range codes per Minco letter ranges in the catalog
SX Special range on next item line, -xxx/-yyyE, i.e., -40°/-10°F
1
No calibration data, sensor or transmitter
Sensor/Transmitter matched at 0°C with NIST
* 2
3
Sensor/Transmitter matched at 0°, 100°, and 260°C with NIST
TT881
PW
055
*Normally stocked item
AC103168
DCP-1.5-W
DCPA-1.2
EYM-50
GFF-50
WB-6
WS-6
446
888-397-5353 USA
P
1
S
2
Example: TT881PW055P1S2 Transmitter with 5.5" immersion probe,
1000Ω 375 curve platinum RTD, ranged for 0°/100°F, with
NIST matched @ 0°C
RELATED PRODUCTS
Separate pipe/wall mounting hardware kit
Power supply, 24 VAC IN to 24 VDC OUT
Power supply, 120 VAC IN to 24 VAC/24 VDC OUT
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction
1/2" galvanized mounting flange
Brass well Stainless steel well kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
PAGE
995
994
488
1293
1293
March 2014
NEW!
HAZARDOUS LOCATIONS
MINCO EXPLOSION PROOF / INTRINSICALLY SAFE HUMIDITY AND TEMPERATURE
TRANSMITTER
HT880 SERIES
DESCRIPTION
The Minco Model HT880 explosion proof / intrinsically
safe humidity transmitter is designed for rugged industrial
use. Approved by FM for hazardous location, this system
provides safe, reliable, and accurate humidity and optional
temperature measurement. The capacitive film sensor is ideal
for low and high humidity measurement with 4-20mA outputs.
The HT880 comes with a stainless steel sintered filter and an
optional NIST traceable certificate. The HT885 has a digital
display.
HT880 with AC103168 bracket
FEATURES
• Replaces Hy-Cal HCT880 Series
• Available with digital display
• Intrinsically safe with MTL7706 barrier
FM
C
HT885
8
CAUTION: Conduit seals MUST be installed within code-required distance from the enclosure to maintain explosion
proof rating. For Group B and C atmospheres, conduit seals must be within 2” (5 cm) of the enclosure regardless of
less stringent code requirements. NOTE: When using the temperature option, both humidity and temperature loops
must be connected to operate.
SPECIFICATIONS
March 2014
Operating Humidity
Operating Temperature
HT880 HT885
Conduit Connection
Mounting
Adjustments
Display
Enclosure
Sensor Filter
Sensor Range
Wiring
Approvals
Weight
HT880
HT885
Warranty
WE MAKE IT EASY.
HAZARDOUS LOCATIONS
CAUTION: Intrinsically safe devices require the use of an intrinsic safety barrier when applied in hazardous locations.
Provide wiring and grounding in accordance with manufacturer’s instructions. When the Model HT-880 is combined
with the MTL7706 intrinsic safety barrier, total cable capacitance must be limited to 0.22 µF, and inductance must be
limited to 4.0 mH (equivalent to 2700’/823m maximum Belden® #8760 18/2 shielded cable 0.18 µH/FT, 44 pF/FT).
Supply Voltage
16.5 to 28.0 VDC
Maximum Output Impedance
FI
725Ω
FX
375Ω
Entity Parameters
Vamx 28V, Imax 100 mA, Ci Oµ,
Li O mH
Area
FI
Class I, Div. 1, 2, Groups A, B, C, D;
Class II, Div. 1, 2, Groups E, F, G;
Class III, Div. 1, 2; Class I, Zone 0,
Aex [ia] IIC T4
FX
Class I, Div. 1, 2, Groups B, C, D;
Class II, Div. 1, 2, Groups E, F, G;
Class III, Div. 1,2
Accuracy
±2.5% RH from 10 to 80% RH
Includes hysteresis, linearity,
repeatability, and all temperature and
voltage effects
Sensor Type
RH: Thin film capacitive element
Optional Temperature: 1000Ω platinum RTD, 385 curve
Response Time
50 seconds in slow moving air
US
APPROVED
0 to 100% RH
-40° to 176°F (-40° to 80°C)
-4° to 176°F (-20° to 80°C)
1/2" FNPT
1/2" MNPT and bracket
sold separately
Non-interacting zero/span
(HT885) 3.5 digit LCD display,
% RH and optional °F or °C
Metal with screw-on cover
60 micron stainless steel
sintered filter
0% to 100% RH
Terminals, 22-14 AWG
FM
2.8 lb (1.3 kg)
4.5 lb (2.02 kg)
3 years
kele.com
888-397-5353 USA
447
NEW!
Control room
HAZARDOUS LOCATIONS
MINCO EXPLOSION PROOF / INTRINSICALLY SAFE HUMIDITY AND TEMPERATURE
TRANSMITTER
HT880 SERIES
WIRING
FI Wiring
DIMENSIONS
Temperature
4.45 ref
MTL7706+
IS Barrier
Hazardous area Safe area
4-20 mA 4
3
Power Bus
Probe
20-28 VDC
1
2
4-20 mA
Humidity
Ground Here Only
MTL7706+
IS Barrier
4-20 mA 4
3
Insertion depth
4.15 ref
Power Bus
1/2 NPT OR G1/2
process thread
20-28 VDC
1
2
Sintered
cap
4-20 mA
Temperature sensor Humidity sensor
connection
connection
FX Wiring
Ground Here Only
PS
4-20 mA
Temperature & Humidity
8
Connection head
Model CH106
Conduit
thread
HAZARDOUS LOCATIONS
WARNING: All circuits MUST be de-energized before opening the cover of this device for any purpose. If work must
be performed with an energized circuit, the atmosphere inside and outside the enclosure must be proven safe with a
listed intrinsically safe combustible gas detector.
ORDERING INFORMATION
MODEL
HT880
HT885D
DESCRIPTION
Industrial-grade, ±2.5% RH, 4-20 mA transmitter
Industrial-grade, ±2.5% RH, 4-20 mA transmitter with LCD display
CALIBRATION
N25 NIST three-point ±2.5% calibration certificate
S25 Standard ±2.5% calibration
TEMPERATURE OPTIONS (other ranges available)
NT No temperature transmitter
EN -20° to 140°F (-28° to 60°C)
S
0° to 100°F (-18° to 38°C)
-Special calibration ranges available (must call)
PROBE LENGTH
60 6" inch probe length
12 12" inch probe length
AGENCY APPROVAL
FX FM approved, explosion proof (NT option only)*
* Not for use as intrinsically safe
FI FM approved, intrinsically safe
AC102765
AC103168
AC103253
DCP-1.5-W
DCPA-1.2
EYM-50
GFF-50
MTL7706+
448
888-397-5353 USA
RELATED PRODUCTS
PAGE
HT885 pipe/wall bracket
Separate pipe/wall mounting hardware kit
Duct mount kit for HT880
Power supply, 24 VAC IN to 24 VDC OUT
995
Power supply, 120 VAC IN to 24 VAC/24 VDC OUT
994
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction 488
1/2" galvanized mounting flange
Intrinsic safety barrier, 4-20 mA two-wire transmitters
474
kele.com
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March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF / INTRINSICALLY SAFE HUMIDITY & TEMPERATURE TRANSMITTER
HHT SERIES
DESCRIPTION
The Dwyer HHT Series explosion proof / intrinsically safe
humidity transmitter is designed for rugged industrial use.
Approved by FM for hazardous location, this system provides
safe, reliable, and accurate humidity and/or temperature
measurement with 4-20 mA outputs. Two models have a
digital display.
CAUTION: Intrinsically safe devices require the use of an
intrinsic safety barrier when applied in hazardous
locations. Provide wiring and grounding in accordance
with manufacturer’s instructions. When the Model HT-880
is combined with the MTL7706 intrinsic safety barrier, total
cable capacitance must be limited to 0.22 µF, and inductance
must be limited to 4.0 mH (equivalent to 2700’/823m
maximum Belden® #8760 18/2 shielded cable 0.18 µH/FT, 44
pF/FT).
FM
C
US
APPROVED
FEATURES
• Available with digital display
• Intrinsically safe with MTL7706+ barrier
HHT
WIRING
Intrinsically Safe Wiring
MTL7706+
IS Barrier
Hazardous area Safe area
Power Bus
3
Temperature
4-20 mA
20-28 VDC
1
8
2
4
4-20 mA
RH
Ground Here Only
Temperature
RH
MTL7706+
IS Barrier
COM
3
4-20 mA
Power Bus
20-28 VDC
1
2
4
4-20 mA
EXP Wiring
4-20 mA
Ground Here Only
PS
Temperature & RH
SPECIFICATIONS
Supply Voltage
Explosion proof
Intrinsically Safe
Entity Parameters
Area
Explosion proof
Intrinsically Safe
Accuracy
Sensor Type
RH:
Temperature: 16.5 to 28 VDC
9.5 to 28 VDC
Vmax= 28V, Imax= 100 mA, Ci= nF, Li=
7.7 µH
Class I, Div. 1, Groups B, C, D; Class II,
Div. 1, Groups E, F, G; Class III, Div. 1,
Class I, Div. 1, Groups A, B, C, D; Class II,
Div. 1, Groups E, F, G; Class III, Div. 1
±2% RH from 10 to 90% RH
Capacitive
Solid state
Response Time
Conduit Connection
Mounting
Display
Enclosure
RH Sensor Range
Temperature Sensor
Range
Wiring
Approvals
Weight
Warranty
15 seconds
1/2" FNPT
Duct probe: 1/2" MNPT
LCD Display
Aluminum
0% to 100% RH
HAZARDOUS LOCATIONS
CAUTION:CONDUIT seals MUST be installed within coderequired distance from the enclosure to maintain explosion
proof rating. For Group B and C atmospheres, conduit seals
must be within 2” (5 cm) of the enclosure regardless of
less stringent code requirements. NOTE: When using the
temperature option, both humidity and temperature loops
must be connected to operate.
-40° to 140°F (-40° to 60°C)
Terminals
FM, CE
2.5 lb (1.1 Kg)
1 year
ORDERING INFORMATION
March 2014
MODEL
HHT-IU
HHT-IT
HHT-IT-LCD
HHT-EU
HHT-EU-LCD
DESCRIPTION
10 inch Intrinsically safe Humidity transmitter
10 inch Intrinsically safe Humidity and Temperature transmitter
10 inch Intrinsically safe Humidity and Temperature transmitter with display
10 inch Explosion proof Humidity transmitter
10 inch Explosion proof Humidity transmitter with display
GFF-50
MTL7706+
EYM-50
DCPA-1.2
A-287
DCP-1.5-W
RELATED PRODUCTSPAGE
1/2" galvanized mounting flange
Intrinsic safety barrier, 4-20 mA two-wire transmitters 474
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction
488
Power supply, 120 VAC In to 24 VAC/24 VDC Out 994
Separate pipe/wall mounting hardware kit for TTE Series
Power supply, 24 VAC IN to 24 VDC OUT 995
WE MAKE IT EASY.
kele.com
888-397-5353 USA
449
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF HIGH AND LOW LIMIT CONTROLS
HZLIM SERIES
DESCRIPTION
The HZLIM Series explosion proof high and low limit
controls are field-assembled combinations of industry
standard controls, heavy duty explosion proof enclosures,
and seals for use in atmospheres that may contain hazardous
gases or dusts (Groups B, C, D, E, F).
The HZLIM-LO-A includes the ultra reliable A11A-1 manual
reset low limit control, a XJA7514C2M2M explosion proof
enclosure, two EYM-75 conduit seals, and an ACK6F fiber/
cement kit.
The HZLIM-LO-B is identical to the HZLIM-LO-A but includes
the equally reliable A11B-1 automatic reset low limit control
instead of the A11A-1.
8
The HZLIM-HI is also identical to the HZLIM-LO-A but
includes the time proven A70KA-1 manual reset high limit
control in place of the A11A-1.
HAZARDOUS LOCATIONS
FEATURES
•
•
•
•
•
•
•
HZLIM Series
DIMENSIONS
Class I Division 1 Groups B, C, D
Class II Division 1 Groups E, F,G
NEMA 7BCD, 9EFG
Long life, snap acting contacts
Easy set point adjust
Freeze protection for hazardous locations
Code required AHU high limit protection for hazardous
locations
in
(cm)
Wiring
3/4" Rigid Conduit
EYM75 Seal
3.13
(7.95)
Sealing Cement
Fiber Dam
Wiring
Enclosure
Controller
10
(25.40)
SPECIFICATIONS
Refer to the A70 and A11 Series in the
Thermostats and Controllers section for
specifications, capillary, installation and wiring
information.
Capillary
EYM75 Seal
3.13
(7.95)
Sealing Cement
Fiber Dam
10.25
(26.04)
Capillary
CAUTION: Conduit seal MUST be installed within
code-required distance from junction box to
maintain explosion proof rating. For Group B and C
atmospheres, conduit seals must be installed within 2”
(5.08 cm) of the enclosure regardless of less stringent
code requirements.
450
888-397-5353 USA
kele.com
WARNING: All circuits MUST be de-energized before
opening the cover of this device for any purpose,
including resetting a manual reset controller or
adjusting a set point. If work must be performed
with an energized circuit, the atmosphere inside and
outside the enclosure must be proven safe with a
listed intrinsically safe combustible gas detector.
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF HIGH AND LOW LIMIT CONTROLS
HZLIM SERIES
INSTALLATION / MOUNTING
OPERATION
Install the XJATS14C2M2N1 enclosure, included with each kit, in its intended location. Install the two EYM75 conduit
seals in the two tapped holes of the XJATS14C2M2N1 enclosure, making sure to engage a minimum of five full
threads. Also be sure that the plugs on the conduit seals are both facing up and to the front (cement will be poured
into them later). The male nipple, supplied with fittings, can be easily removed and replaced in the opposite side for
proper orientation.
8
HAZARDOUS LOCATIONS
Unpack the A11 or A70 controller, and fully uncoil the capillary tubing. Place plastic bushings in both openings inside
the enclosure and also in the bottom of the lower conduit seal. Gently feed the end of the capillary (or capillary and
bulb) through the bottom opening and conduit seal from inside the XJATS14C2M2N1 enclosure, taking care not to
nick or kink the capillary. Once the end is out, slowly feed the rest of the capillary fully through to the outside of the
conduit seal. Use an assistant, if needed, to make sure that the inner and outer plastic bushings stay in place to
protect the capillary from damage. Once this is accomplished, mount the A11 or A70 controller to the panel inside
the enclosure. Install the capillary (or capillary and bulb) on the equipment according to the included instructions.
Install rigid conduit and wiring as required by code from the upper conduit seal, engaging a minimum of five full
threads at each joint. Only individual insulated conductors may pass through the conduit seal. If jacketed cable
is used, the jacket must be stripped back beyond the seal or else a listed cable seal must be applied within the
enclosure. Remove the plugs from the two conduit seals. Make sure that the wires and capillary are centered in
the seals. Then install fiber dams and sealing compound in each according to the included instructions (minimum
0.75"/2 cm cement depth), and replace the plugs. Adjust the setpoint on the controller, install the cover for the
XJATS14C2M2N1 enclosure, and tighten securely.
ORDERING INFORMATION
MODEL
HZLIM-HI
HZLIM-LO-A
HZLIM-LO-B
ACK6F
EYM-75
March 2014
DESCRIPTION
Kit with one A70KA-1 manual reset high limit control, one XJATS14C2M2N1 enclosure, two
EYM75 conduit seals, three plastic conduit bushings, and one ACK6F sealing kit
Weight: 26.9 lb (12.2 kg)
Kit with one A11A-1 manual reset low limit control, one XJATS14C2M2N1 enclosure, two
EYM75 conduit seals, three plastic conduit bushings, and one ACK6F sealing kit
Weight: 25.7 lb (11.7 kg)
Kit with one A11B-1 automatic reset low limit control, one XJATS14C2M2N1 enclosure, two
EYM75 conduit seals, three plastic conduit bushings, and one ACK6F sealing kit
Weight: 25.7 lb (11.7 kg)
RELATED PRODUCTS
Cement: 1.9 lb * (0.85kg) Fiber: 0.3 lb (0.19 kg), 25 cu in (410 cu cm) volume when set
* Consists of five 0.4 lb (0.19 kkg) cement pouches
3/4" size, 1.19" turning radius, 2 oz Kwiko cement required, Malleable Iron construction
WE MAKE IT EASY.
kele.com
888-397-5353 USA
PAGE
489
488
451
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF THERMOSTATS
EPETD8S, T6051B1006
DESCRIPTION
The EPETD8S and T6051B1006 Series explosion proof
thermostats are two-position room thermostats designed for
on/off control with set points from 50° to 90°F (10° to 32°C)
(EPETD8S) and 46° to 84°F (8° to 29°C) (T6051B1006). These
snap-acting switch type devices are suitable for line- or lowvoltage applications and have SPDT contacts for heating or
cooling control.
FEATURES
8
• Class I Division 1 Groups C, D; Class II Division 1
Groups E, F, G
• NEMA 7CD, 9EFG
• Line or low voltage control of heating or cooling
systems
• EPETD8S UL file #E114308
• T6051B1006 UL file #E12842
EPETD8S
T6051B1006
SPECIFICATIONS
HAZARDOUS LOCATIONS
Model
Voltage Range
Differential
Contact Arrangement
Weight
Dimensions
Setpoint Range
EPETD8S
24-244 VAC,
22A heating and cooling
Heating 2°F (1.1 °C),
Cooling 4°F (2.2°C)
SPDT
5.3 lb (2.4 kg)
5.6" x 6.4" x 4.5"
(14.3 x 16.2 x 11.4 cm)
50° to 90°F
(10° to 32°C)
T6051B1006
24-120 VAC 10A heating,
7A cooling; 240 VAC 6A
heating, 4A cooling
Heating 1°F (0.6°C),
Cooling 1°F (0.6°C)
SPDT
5.3 lb (2.4 kg)
5.6" x 6.4" x 4.75"
(14.3 x 16.2 x 12.1 cm)
46° to 84°F
(8° to 29°C)
WIRING
INSTALLATION/MOUNTING
Surface-mount explosion proof box using the mounting
ears for surface applications. Each includes two 3/4" tapped
conduit entries (top and bottom).
N.C.
N.O.
C - N.C. Open on temp rise
C - N.O. Close on temp rise
CAUTION: Conduit seal MUST be installed within
code-required distance from thermostat to maintain
explosion proof rating.
C
HLT-1 (SPDT) & HLT-2 (DPDT)
452
ORDERING INFORMATION
MODEL
EPETD8S
T6051B1006
DESCRIPTION
Line- or low-voltage heating/cooling thermostat
Line- or low-voltage heating/cooling thermostat
ACK6F
EYM-75
RELATED PRODUCTS
PAGE
Cement: 1.9 lb * (0.9 kg) Fiber: 0.3 LB (0.14 kg), 25 cu in (410 cu cm) volume when set
* Consists of five 0.4 lb (0.19 kg) cement pouches
489
3/4" size, 1.19" turning radius, 2 oz Kwiko cement required, Malleable Iron construction 488
888-397-5353 USA
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF BULB THERMOSTAT
A19AUC-2
DESCRIPTION
The Johnson Controls Model A19AUC-2 explosion
proof bulb thermostat is an ideal solution for air or fluid
temperature control in potentially hazardous areas. Its 6'
capillary and bulb make mounting convenient, and its external
setpoint adjustment knob provides easy operation without
having to verify that the atmosphere is safe. An optional
thermowell makes immersion applications a snap.
FEATURES
• Class I, Division 1, Group D (NEMA 7)
• Class II, Division 1, Groups E, F, and G (NEMA 9)
• Line or low voltage control of heating or cooling
systems
• 6' (1.83m) capillary for flexible bulb placement
• Immersion well available
• 20° to 80°F range (celcuis)
• Duct bulb holders available
SPECIFICATIONS
Warranty
INSTALLATION / MOUNTING
Each explosion proof box has mounting ears for surface
applications and includes 3/4" FNPT tapped conduit entry on
the top side.
WIRING
SPDT
22.0 A @ 277 VAC maximum
16.0 A @ 120VAC; 9.2 A @
208 VAC; 8.0 A @ 240 VAC
96.0 A @ 120 VAC, 55.2A @
208 VAC, 48.0A @ 240 VAC
125 VA @ 24-600 VAC
20° to 80℉ (-7° to 27)
3.5℉ (1.9)
0.38" x 4.97" (0.95 x 12.6 cm)
6' (1.83 m)
6.25" H x 3" W x 4.25" D
(15.9 x 7.6 x 10.8 cm)
2.6 lb (1.2 kg)
UL listed File #E37739, CSA
Explosion proof Class1, Division
1, Group D; Class II, Division 2,
Groups E, F, G
1 year
C 1
N.C. 3
C - N.C. Open on temp rise
C - N.O. Close on temp rise
N.O. 2
8
HAZARDOUS LOCATIONS
Switch
Non Inductive Amps
Full Load Amps
Locked Rotor Amps
Pilot Duty
Range
Differential
Bulb
Capillary
Dimensions
Weight
Approvals
Area
A19AUC-2
A19AUC
CAUTION: Conduit seal MUST be installed within
code-required distance from thermostat to maintain
explosion proof rating.
ORDERING INFORMATION
March 2014
MODEL
A19AUC-2
DESCRIPTION
Remote bulb thermostat
TE-6001-1
WEL14A-603R
RELATED PRODUCTS
Duct temperature element holder with box
5-13/16 Copper bulb well
WE MAKE IT EASY.
PAGE
1391
kele.com
888-397-5353 USA
453
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF THERMOSTAT
HLT SERIES
DESCRIPTION
The HLT Series explosion proof thermostats are twoposition room thermostats designed for on/off control with
setpoints from 40° to 110°F (4° to 43°C). The HLT Series has
a bulb and capillary room temperature sensor and adjustment
slot for changing the setpoint. The thermostats are suitable
for line- or low-voltage applications and have either SPDT or
DPDT contacts for heating or cooling control.
FEATURES
• Class I, Division 1, Groups C, D; Class II, Division 1,
Groups E, F, G
• NEMA 7CD, 9EFG
• Line or low voltage control of heating or cooling
systems
• UL File #E114308
HLT
APPLICATION
On/Off control in hazardous classified areas.
8
HAZARDOUS LOCATIONS
SPECIFICATIONS
Model
Contact Rating
Differential
Contact
Arrangement
Weight
Dimensions
Setpoint Range
HLT-1
24-277 VAC,
22A heating or cooling
Heating: 3°F (1.7°C);
Cooling 3°F (1.7°C)
SPDT
5.3 lb (2.4 kg)
5.8"H x 6.4"W x 5.6"D
(14.7 x 16.3 x 14.2 cm)
40° to 110°F (4° to 43°C)
HLT-2
24-277 VAC,
Heating: 3°F (1.7°C);
22A heating and cooling Cooling 3°F (1.7°C)
DPDT
5.3 lb (2.4 kg)
5.8"H x 6.4"W x 5.6"D
(14.7 x 16.3 x 14.2 cm)
40° to 110°F (4° to 43°C)
WIRING
INSTALLATION/MOUNTING
Surface-mount explosion proof box using the mounting
ears for surface applications. Each includes two 3/4" tapped
conduit entries (top and bottom).
N.C.
C - N.C. Open on temp rise
C - N.O. Close on temp rise
N.O.
C
CAUTION: Conduit seal MUST be installed within
coderequired distance from thermostat to maintain
explosion proof rating.
HLT-1 (SPDT) & HLT-2 (DPDT)
ORDERING INFORMATION
454
MODEL
HLT-1
HLT-2
DESCRIPTION
Line- or low-voltage heating/cooling thermostat, SPDT
Line- or low-voltage heating/cooling thermostat, DPDT
ACK6F
EYM-75
RELATED PRODUCTS
Cement: 30 oz * (850g) Fiber: 5 oz (142g), 25 cu in (410 cu cm) volume when set
* Consists of five 6 oz (187g) cement pouches
3/4" size, 1.19" turning radius, 2 oz Kwiko cement required, Malleable Iron construction
888-397-5353 USA
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WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
PAGE
489
488
March 2014
NEW!
HAZARDOUS LOCATIONS
INTRINSICALLY SAFE LEVEL TRANSMITTER
IL10 SERIES
DESCRIPTION
The Wika IL10 Series Intrinsically Safe Level Transmitter
is exceptionally stable and is virtually unaffected by shock,
vibration and orientation. These Instrinsically (IS) Safe
transmitters are ideal for monitoring water level in an
explosive atmosphere with a safety barrier. The IL10 Series
can be lowered into a tank of water and the 4-20 mA signal
will directly correspond to the level.
FEATURES
•
•
•
•
Class I, II, III, Division 1, Groups A, B, C, D, E, F, G
0.25% accuracy, all ranges
4-20 mA, loop powered
Ranges from 4.2 feet (1.3 m) to 34.9 feet (10.6 m)
C
FM
US
APPROVED
IL10
8
SPECIFICATIONS
Materials of
Construction
Entity Parameters
Stainless steel case
Vmax = 30V, Imax = 100 mA, Ci = 22
nF, Li = 0.1 mH
Intrinsically safe Class I, II, III,
Division 1, Groups A, B, C, D, E, F, G
CSA, FM, CE
2.6 lb (1.2 Kg) maximum
1 year
Area
Approvals
Weight
Warranty
WIRING
Hazardous Safe Area
Area
MTL7706+
Intrinsically Safe Barrier
3
Green 4
Brown +
Blue
IL10
1
Power
Bus
2
Shield
Ground Here Only
10-30 VDC
+
250Ω
1-5V
–
CAUTION: Intrinsically safe devices require the use of
an intrinsic safety barrier when applied in hazardous
locations. Provide wiring and grounding strictly
in accordance with manufacturer's instructions.
When a IL10 Series transmitter is combined with the
Model MTL7706 intrinsic safety barrier, total cable
capacitance between the two must be limited to 0.12
µF. Total cable inductance must be limited to 4.0 mH
(equivalent to 2700'/823m maximum Belden™ #8760
18/2 shielded twisted pair cable 0.18 µH/FT, 44 pF/FT).
HAZARDOUS LOCATIONS
Supply Voltage
10-30 VDC
Accuracy
0.25% of span
Signal Output
4-20 mA
Maximum Output
Impedance mA
695Ω @ 24 VDC
Overpressure
Proof 30 psi, Burst 35 psi
Operating Temperature-22° to 140°F (-30° to 60°C)
Enclosure Rating
NEMA 4X (IP65)
Dimensions
1.1" diameter x 5.8" long
(2.7 x 14.7 cm)
ORDERING INFORMATION
MODEL
IL10ANGGGDZG12Z
IL10ANGUGDZG12Z
IL10ANCNGDZG12Z
IL10ANCPGDZG12Z
IL10ANBCGDZG12Z
MTL7706+
250R-3-1
DCPA-1.2
DCP-1.5-W
March 2014
DESCRIPTION
Intrinsically-safe level transmitter 4.2 foot range with 10 foot lead
Intrinsically-safe level transmitter 8.3 foot range with 20 foot lead
Intrinsically-safe level transmitter 11.6 foot range with 20 foot lead
Intrinsically-safe level transmitter 23.1 foot range with 30 foot lead
Intrinsically-safe level transmitter 34.9 foot range with 40 foot lead
RELATED PRODUCTSPAGE
Intrinsic safety barrier, 4-20 mA two-wire transmitters 474
250 OHM 3 WATT 1% resistor long leads1299
Power supply, 120 VAC In to 24 VAC/24 VDC Out 994
Power supply, 24 VAC IN to 24 VDC OUT 995
WE MAKE IT EASY.
kele.com
888-397-5353 USA
455
NEW!
HAZARDOUS LOCATIONS
INTRINSICALLY SAFE PRESSURE TRANSMITTER
K1 SERIES
DESCRIPTION
The Ashcroft K1 Series intrinsically safe pressure
transmitter is exceptionally stable and is virtually unaffected
by shock, vibration, or orientation. Performance is directly
traceable to NIST standards, and a calibration certificate
is available for each unit upon request. These intrinsically
safe (IS) transmitters are ideal for monitoring pressures in
explosive atmospheres with barrier.
FEATURES
• Class I, Division 1, Groups C, D;
Class II, Division 1, Group G; Class III
• Nonincendive for Class I, Division 2, Groups A, B, C,
and D
• 0.5% accuracy, all ranges
• 4-20 mA, loop powered
• Ranges from 100-3000 psig (690-20,685 kPa)
C
FM
US
APPROVED
SPECIFICATIONS
HAZARDOUS LOCATIONS
8
Supply Voltage
10-36 VDC
Accuracy
±0.5% full scale
Thermal Effect
±0.03 full scale/°F zero and span
Output
4-20 mA
Maximum Output
Impedance
650Ω @ 24 VDC
Overpressure
Proof: 150%; Burst: 300%
Temperature
Compensation
-20° to 160°F (-29° to 71°C)
Operating Temperature-20° to 180°F (-29° to 82°C)
Response Time
5 ms
Materials Of
Construction
304 stainless steel case
WIRING
Hazardous Safe Area
Area
MTL7706
Intrinsically Safe Barrier
3
BR+
K1
1
Power
Bus
20-35 VDC
+
2
4
250Ω
1-5V
–
Process Connection
Diaphragm Material
Zero Span Adjust
Dimensions
Weight
Area
Approvals
Entity Parameters
Warranty
1'8" BNPT male 316 stainless steel
17-4 PH stainless steel
Field adjustable ±10%
4" L x 5/8" dia (10.2 x 1.6 cm)
0.65 lb (0.29 kg)
Intrinsically safe Class I, Division 1,
Groups C, D; Class II, Division 1,
Groups G; Class III
UL File #E152893, FM
Vmax=30V, Imax- 250 mA, Li = 0, Ci
= 0.1 µF
1 year
CAUTION: Intrinsically safe devices require the use of an
intrinsic safety barrier when applied in hazardous locations.
Provide wiring and grounding strictly in accordance with
manufacturer's instructions. When a K1 Series transmitter
is combined with the Model MTL7706 intrinsic safety barrier,
total cable capacitance between the two must be limited to
0.12 µF. Total cable inductance must be limited to 4.0 mH
(equivalent to 2700'/823m maximum Belden™ #8760 18/2
shielded twisted pair cable 0.18 µH/FT, 44 pF/FT).
Ground Here Only
ORDERING INFORMATION
456
MODEL
K15M0142F2100X
K15M0142F2200X
K15M0142F2500X
K15M0142F21KX
K15M0142F23KX
DESCRIPTION
4-20 mA intrinsically safe pressure transmitter 0-100 psig (690 kPa)
4-20 mA intrinsically safe pressure transmitter 0-200 psig (1379 kPa)
4-20 mA intrinsically safe pressure transmitter 0-500 psig (3448 kPa)
4-20 mA intrinsically safe pressure transmitter 0-1000 psig (6895 kPa)
4-20 mA intrinsically safe pressure transmitter 0-3000 psig (20,685 kPa)
250R-3-1
DCP-1.5-W
DCPA-1.2
MTL7706+
PT
RELATED PRODUCTS
250 OHM 3 WATT 1% Resistor Long Leads
Power supply, 24 VAC IN to 24 VDC OUT
Power supply, 120 VAC IN to 24 VAC/24 VDC OUT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
1/4" pigtail syphon with fittings
888-397-5353 USA
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PAGE
1299
995
994
474
March 2014
NEW!
HAZARDOUS LOCATIONS
ASHCROFT INTRINSICALLY SAFE DIFFERENTIAL PRESSURE TRANSMITTER
IXLDP
DESCRIPTION
The Ashcroft Model IXLdp (XFM option) is an intrinsically
safe, industrial-quality, differential pressure transmitter
for use on air and other noncorrosive gases. The Model
IXLdp is available with accuracies of 0.25% and 0.50% in
pressure ranges of 0.1 "W.C. to 200 "W.C. uni-directional or
bi-directional.
FEATURES
•
•
•
•
•
•
100 psig static line pressure
0.25% or 0.5% accuracy down to 0.05 "W.C.
Uni-directional or bidirectional ranges
300 Series cast stainless steel body
NEMA 4X
NIST certificate included
C
FM
US
APPROVED
IXLdp
SPECIFICATIONS
Supply Voltage
Signal Output
Entity Parameters
Accuracy
36V
250 mA
Intrinsically Safe Class I, II, III;Div
1 and 2, Groups A through G Nonincendive Class I, Div 2,
Groups A through D; Class II, Div 2,
Groups F, G, Class III
0.25 % or 0.5%
8
Response Time
250 ms
Operating Temperature-20° to 185°F (-29° to 85°C)
Conduit Connection
Two 1/2" female
Process Connection Two 1/4" NPT female
Enclosure
NEMA 4X
Maximum Static
Pressure
100 psig
Media
Clean, dry, noncorrosive gas
Proof Pressure
15 psid
Burst Differential
Pressure
50 psid
Aprovals
FM
Weight
2 lb (0.9 kg)
Warranty
1 year
HAZARDOUS LOCATIONS
Maximum Supply
Voltage Maximum Supply
Current
Area
12-36 VDC
4-20 mA @ 545Ω
Vmax = 36V, Imax = 250 mA, Ci = 12
nF, Li =0
DIMENSIONS
in
(cm)
Access Cover
(terminal block)
Mounting Foot
Mounting
Foot
Ø0.2 (0.5)
2.7
(6.9)
0.2 Type
Two Places
Mounting Foot
1/2 NPSM Thread Type
(both sides for conduit piping)
5.0 (12.7)
1.4 (3.6)
4.3
(10.9)
Zero Pot
Location
Span Pot
Access Cover
(zero and span pots)
3.0
(7.6)
1/4 NPT
Pressure
Fittings
High
Low
2.5
(6.4)
0.7 (1.8)
0.7 (1.8)
4.6
(11.7)
2.7
(6.9)
0.8
(2.0)
1.4
(3.6)
3.0
(7.6)
INSTALLATION
The transducer should be used with clean, dry air or other dry, noncorrosive gases. The unit should be mounted with #8 or #10
screws using the three mounting feet provided. The transducer can be mounted in any orientation with virtually no effect on
calibration. Any minor zero pressure offsets that are encountered can be adjusted using the zero-adjust potentiometer. The highand low-pressure connection ports are plugged to avoid debris entering the unit. The plugs should be left in place until the tubing
and fittings are connected. The two 1/4" NPT pressure connections should be sealed to the transducer housing using Teflon®
tape. Do not use dope-type sealant.
March 2014
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kele.com
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457
NEW!
HAZARDOUS LOCATIONS
ASHCROFT INTRINSICALLY SAFE DIFFERENTIAL PRESSURE TRANSMITTER
IXLDP
CAUTION: Intrinsically safe devices require the use of an intrinsic safety barrier when applied in hazardous locations.
Provide wiring and grounding strictly in accordance with manufacturer’s instructions. When the Model IXLdp
transmitter is combined with the Model MTL7706+ intrinsic safety barrier, total cable capacitance between the two
must be limited to 0.12 µF, and total cable inductance must be limited to 4.0 mH (equivalent to 2700'/823m maximum
Belden® #8760 18/2 shielded twisted pair cable 0.18 µH/FT, 44 pF/FT).
WIRING
Hazardous Area Safe Area
MTL7706+
Intrinsically Safe Barrier
Power Bus
Earth
Ground
3
4-20 mA 4
8
20-35
VDC
1
2
250Ω 1-5V
Ground Here Only
HAZARDOUS LOCATIONS
ORDERING INFORMATION
MODEL DESCRIPTION
IX
Differential pressure transmitter
ACCURACY
3
0.25% accuracy
5
0.5% accuracy
PRESSURE CONNECTION
F
1/4" NPT female pressure connection
OUTPUT SIGNAL
4
4-20 mA output signal
ELECTRICAL CONNECTION
S Screw terminals
PRESSURE RANGE
Differential or Gauge
Compound
P1IW
0.10" W.C. (24.9 Pa)
P05IWL
±0.05" W.C. (12.4 Pa)
P25IW 0.25" W.C. (62.24 Pa)
P1IWL
±0.10" W.C. (24.9 Pa)
P5IW
0.50" W.C. (124.6 Pa)
P2IWL
±0.20" W.C. (49.8 Pa)
1IW
1.00" W.C. (249.1 Pa)
P25IWL
±0.25" W.C. (62.24 Pa)
2IW
2.00" W.C. (498.2 Pa)
P5IWL
±0.50" W.C. (124.6 Pa)
2P5IW 2.50" W.C. (622.4 Pa)
1IWL
±1.00" W.C. (249.1 Pa)
3IW
3.00" W.C. (747.3 Pa)
2IWL
±2.00" W.C. (498.2 Pa)
5IW
5.00" W.C. (1245.5 Pa)
2P5IWL
±2.50" W.C. (622.4 Pa)
10IW
10.00" W.C. (2491.0 Pa) 3IWL
±3.00" W.C. (747.3 Pa)
15IW
15.00" W.C. (3734.5 Pa) 5IWL
±5.00" W.C. (1245.5 Pa)
20IW
20.00" W.C. (4979.3 Pa) 10IWL
±10.00" W.C. (2491.0 Pa)
25IW
25.00" W.C. (6224.1 Pa) 15IWL
±15.00" W.C. (3734.5 Pa)
50IW
50.00" W.C. (12.4 kPa)
20IWL
±20.00" W.C. (4979.3 Pa)
100IW 100.00" W.C. (24.9 kPa) 25IWL
±25.00" W.C. (6224.1 Pa)
150IW 150.00" W.C. (37.3 kPa) 50IWL
±50.00" W.C. (12.4 kPa)
±100.00" W.C. (24.9 kPa)
200IW 200.00" W.C. (49.8 kPa) 100IWL
OPTIONS
XFM Factory mutual approval (required for intrinsically safe)
IX
3
FO2 42
ST
250R-3-1
A-602
DCP-1.5-W
MTL7706+
458
888-397-5353 USA
10IW
XFM
Example: IX3FO242ST10IWXFMX41 Intrinsically safe differential
pressure transducer with 0.25% accuracy, 4-20 mA output,
and 10" W.C. range.
RELATED PRODUCTS
250 OHM 3 WATT 1% Resistor Long Leads
Mounting kit for air filter applications. Includes two pressure tips, two 5-foot lengths of aluminum tubing and two adapters.
Power supply, 24 VAC IN to 24 VDC OUT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
kele.com
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PAGE
1299
995
474
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF AIR DIFFERENTIAL PRESSURE SWITCH
1950G SERIES
DESCRIPTION
The Dwyer 1950G Series explosion proof air differential
pressure switch monitors differential air pressure in a
hazardous environment. The 1950G Series has an external
screw type setpoint adjustment and a NEMA 7 and 9 rated
enclosure. The enclosure is anodized cast aluminum with
explosion proof rating for Class I, Division 1, Groups A, B, C,
D and Class II, Division 1, Groups E, F, G. The optional Model
A-602 pressure probe kit allows the 1950G Series to monitor
filter pressure drop.
FEATURES
• Class I, Division 1, Groups A, B, C, D
• Class II, Division 1, Groups E, F, G; Class III
• Ranges from 0.07" to 20" W.C. (17.4 to 4981 Pa)
• Adjustable setpoint within range
• SPDT 10A contacts
SPECIFICATIONS
C
DIMENSIONS
0.26" dia (0.66)
in
Mounting Holes (2)
(cm)
3.5
(8.89)
5.43
4.87 (13.79)
(12.37)
1/2" NPT
Electrical
Conduit
Connection
Supply Voltage
1.68
(4.27)
1/8" NPT Low
Pressure Port
Vent Drain
Plug
1.43
(3.63)
8
Closes on high differential pressure
Opens on high differential pressure
VAC
CAUTION: Conduit seal MUST be installed within
code-required distance from DP switch to maintain
explosion proof rating.
A-602
ACK6F
EYM-50
March 2014
B-120
HAZARDOUS LOCATIONS
C.
N.O.
N.C.
+
–
MODEL DESCRIPTION
1950G Explosion proof air differential pressure switch
OPERATING RANGE APPROXIMATE DEADBAND "W.C."(Pa)
RANGE
"W.C."
Pa
At Min Setpoint At Max Setpoint
00
0.06 (14.9)
0.04 (10)
0.07-0.15 17.4-37.3
0
0.11 (27.4)
0.06 (14.9)
0.15-0.5 37.3-124.5
1
0.29 (72.2)
0.11 (27.4)
99.6-398.5
0.4-1.6
5
0.9 (224)
348.7-1370 0.4 (99.6)
1.4-5.5
10
1.8 (448)
3.0-11.0 747.2-2740 0.9 (224)
20
3.0 (747)
1.2 (299)
996-4981
4.0-20
SUPPLY VOLTAGE
B-24 24 VDC
B-120 120 VAC
B-240 240 VAC
NON-ATEX
NA
For Non CE approval models
1
0.38
(0.95)
WIRING
ORDERING INFORMATION
1950G
US
Range Adjustment
Screw
1/8" NPT High
Pressure Port
24 VDC ± 10%, 208 mA; 120/240
VAC @ 5 VA
Switch
SPDT, 10A @ 240 VAC/28 VDC
Operating Temperature0° to 140°F (-18° to 60°C)
Connections
1/8" NPT
Diaphragm
Buna-N
Area
Class I, Division 1, Groups A, B, C,
D; Class II, Division 1, Groups E,
D, G; Class III
Burst Pressure
10 psig (69 kPa)
Approvals
UL File #E62583, FM, CSA, CE,
ATEX
Weight
3 lb (1.4 kg)
Warranty
1 year
FM
APPROVED
NA Example: 1950G-1-B-120 - NA 0.4-1.6" W.C.",
explosion proof air differential pressure switch
with 120 VAC supply voltage - non atex
RELATED PRODUCTS PAGE
Mounting kit for air filter applications. Includes two pressure tips,
two 5-foot lengths of aluminum tubing and two adapters.
Cement: 1.9 lb * (0.9 kg) Fiber: 0.3 LB (0.14 kg), 25 cu in (410 cu cm) volume when set
* Consists of five 0.4 lb (0.19 kg) cement pouches
489
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction 488
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HAZARDOUS LOCATIONS
FLOWLINE EXPLOSION PROOF LEVEL TRANSMITTER
ECHOSAFE
DESCRIPTION
The Flowline Model EchoSafe is an explosion proof,
industrial-grade ultrasonic liquid-level transmitter with
automatic temperature compensation. Liquid conductivity,
clarity, foam, or suspended solids do not affect the highly
accurate 4-20 mA output since no contact is made with the
material being measured.
FEATURES
HAZARDOUS LOCATIONS
8
• Class I Division 1, Groups A, B, C, D; Class II, Groups
E, F, G; Class III Division 1, Groups E, F, G
• Compact XP enclosure with viewing window and dual
conduit ports
• Narrow (3") beam for use in tight locations
• Integral display
• Simple pushbutton calibration
• Suitable for a wide variety of liquids
• Not affected by foam, dirty liquids, etc.
• 8' to 24.6' range (20 cm to 7.5m)
• Fail-Safe intelligence with diagnostic feedback
• Display in inches or centimeters
C
FM
US
APPROVED
EchoSafe
SPECIFICATIONS
Temperature
Compensation
Pressure Rating
Enclosure Rating
Mounting
Conduit Connection
Materials Of
Construction
Supply Voltage
18-28 VDC (loop-powered)
Accuracy
0.2% of maximum range
Resolution
0.079" (2 mm)
Range
XP88-0
8" to 24.6' (20 cm to 7.5 m)
XP89-0
8" to 32.8' (20 cm to 10 m)
Signal Output
4-20 mA or 20-4 mA, two-wire
Maximum Output
Impedance
250Ω @ 24 VDC
Display Type
LCD, 6-digits
Display Units
Inch, cm, ft, m, percent
Fail Safe
4 mA, 20 mA, 21 mA, 22 mA,
or hold last
Operating Temperature-4° to 140°F (-20° to 60°C)
Area
Approvals
Weight
Warranty
Automatic over entire range
30 psig (207 kPa)
NEMA 4X
2" NPT threads
two 1/2" NPT
Transducer: PVDF, Enclosure:
Aluminum, Window: Glass
Class I, Division 1, Groups A, B, C,
D; Class II, Groups E,F,G: Class III
FM, RoHS, CE
6 lb (2.7 kg)
1 year
WIRING
The EchoSafe requires 14-28 VDC power and a load that receives a 4-20 mA current input. Connect the red wire of the transmitter to
the positive VDC terminal on the power supply. Connect the black wire on the transmitter to the (+) terminal on the load. Connect the
(–) of the load to the (–) of the power supply.
EchoSafe™
UP
SELECT
FAST
460
888-397-5353 USA
kele.com
DOWN
(black)
(red)
+
4-20 mA
Signal
24 VDC
Power
Supply
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
FLOWLINE EXPLOSION PROOF LEVEL TRANSMITTER
ECHOSAFE
DIMENSIONS
4.44" (11.3)
1/2" NPT
3.89"
(9.9)
6.06"
(15.4)
EchoSafe™
UP
SELECT
DOWN
FAST
4.00"
(10.2)
6.06"
(15.4)
2" NPT
Side View
Top View
Front View
HAZARDOUS LOCATIONS
ORDERING INFORMATION
MODEL
XP88-00
XP89-00
DESCRIPTION
Explosion proof level transmitter, 8" to 24.6'
Explosion proof level transmitter, 8" to 32.8'
LM50-1001
ACCESSORIES
2" Mounting bracket (included with "B" option)
ACK6F
RELATED PRODUCTS
PAGE
Cement: 30 oz * (850g) Fiber: 5 oz (142g), 25 cu in (410 cu cm) volume when set
* Consists of five 6 oz (187g) cement pouches
489
Power supply, 24 VAC IN to 24 VDC OUT
995
Power supply, 120 VAC IN to 24 VAC/24 VDC OUT
994
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction 488
DCP-1.5-W
DCPA-1.2
EYM-50
March 2014
WE MAKE IT EASY.
8
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NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF WATER FLOW SWITCH
FS7-4E
DESCRIPTION
The McDonnell & Miller Model FS7-4E explosion proof
water flow switches are used to prove flow on liquid lines in
hazardous areas. The FS7-4E has an external adjustment of
setpoint so one does not have to remove the explosion proof
housing. A trimmable paddle allows for handling 1 1/4" to 16"
pipe sizes.
FS7-4E
SPECIFICATIONS
HAZARDOUS LOCATIONS
8
Contact Type
Media Temperature
Connection
Maximum Pressure
Enclosure
Area
Installation
Dimensions
Approvals
Weight
Warranty
SPDT
32° to 300°F (0° to 149°C)
1/2" female conduit
300 psi (2068 kPa)
NEMA 7 & 9
Explosion proof Class I, Division
1, Group C, D; Class II, Division 1,
Groups E, F, G
Vertical
9.7" H x 7.3" W x 4.6" D
(24.7 x 18.4 x 11.7 cm)
UL File E33552, CSA
12.3 lb (5.6 Kg)
1 year
ADJUSTMENTS: TYPICAL FLOW RATES
Line Pipe Size
(inch)
GPM(LPM)
1 1/4"
Minimum
Flow
4.8 (18.2)
Minimum
No Flow
3 (11.4)
Maximum
Flow
Maximum
No Flow
1 1/2"
2"
2 1/2"
3"
4"
5"
6"
6.3 (23.8) 9.9 (37.5) 15.3 (57.9) 24.4 (92.4)
33.3 (126)
3.6 (13.6) 5.9 (22.3)
21.1 (79.9)
31 (117.3)
48.7 (184.3)
7.7 (29.1)
10 (37.9) 15.8 (59.8) 23.7 (89.7) 35.5 (134.4) 61.4 (232.4)
84 (317.9)
114.8 (434.5) 210 (794.9)
5.9 (22.3)
7 (26.5)
11 (41.6)
9.5 (36)
15.4 (58.3)
17 (64.3) 29.2 (110.5) 37.7 (142.7)
44.4 (168.1) 56.3 (213.1)
8"
51 (193)
71 (270.6)
104 (393.6)
89 (336.9)
131 (495.8)
WIRING
FLOW
ELECTRICAL RATINGS
MOTOR RATINGS
AC full load amps
AC locked rotor amps
C NO NC
120V 240V
7.4
3.7
44.4 22.2
Pilot duty – 125 VA @ 120/240VAC 50/60 Hz
NO FLOW
C NO NC
ORDERING INFORMATION
MODEL
FS7-4E
462
888-397-5353 USA
DESCRIPTION
Explosion proof water flow switch
kele.com
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March 2014
NEW!
HAZARDOUS LOCATIONS
FLOWLINE INTRINSICALLY SAFE ULTRASONIC LEVEL TRANSMITTER
ELP
DESCRIPTION
The Flowline Model ELP Echo Touch is an industrialgrade ultrasonic liquid-level transmitter with automatic
temperature compensation. Liquid conductivity, clarity, foam,
or suspended solids do not affect the highly accurate 4-20
mA output since no contact is made with the material being
measured. When coupled with Model MTL7706 intrinsic
safety barrier, the intrinsically safe design and NEMA
4X(IP65) housing allow use in nearly all atmospheres
containing hazardous gases, dusts, or fibers.
FEATURES
• Class I, Division 1, Groups A, B, C, D; Class II, Division
1, Groups E, F, G; Class III, Division 1
• Continuous level measurement with 4-20 mA output
• Narrow (eight-degree) beam for use in tight locations
• Simple pushbutton calibration
• Automatic temperature compensation
• NEMA 4X (IP65) housing
• Suitable for a wide variety of liquids
• Not affected by foam, dirty liquids, etc.
• 0.5" to 18' range (0.15 to 5.5m)
ELP
8
DIMENSIONS
2.8
(7.11)
SPECIFICATIONS
3.6 (9.14)
4.9 (12.45)
2" NPT
1.3
(3.30)
March 2014
6.3 (16.00)
Supply Voltage
20-35 VDC
Accuracy
0.25% of span
Resolution
0.125" (0.3 cm)
Range
5" to 18' (15 cm to 5.5 m)
Signal Output
4-20 mA
Maximum Output
Impedance
600Ω @ 24 VDC
Pulse Rate
Two per second
Operating Temperature-40° to 140°F (-40° to 60°C)
Temperature Compensation
Automatic over entire range
Pressure Rating
30 psig (207 kPa) @ 77°F (25°C)
derated 0.93 psig per °F
(11.6 kPa per°C ) above 77°F
(25°C)
Enclosure Rating
NEMA 4X (IP65)
Mounting
2" NPT threads
Conduit Connection
1/2" NPT
Area
Intrinsically safe Class I, Division 1,
Groups A, B, C, D; Class II,
Division 1, Groups E, F, G; Class III,
Division 1
Approvals
CSA approved, CE
Entity Parameters
Vmax = 32V, Imax = 130 mA, Ci = 0
µF, Li = 0 mH
Weight
ELP: 3.0 lb (1.4 kg),
ELP-B 3.6 lb (1.6 kg)
Warranty
1 year
HAZARDOUS LOCATIONS
in
(cm)
CAUTION: Intrinsically safe devices require the use of
an intrinsic safety barrier when applied in hazardous
locations. Provide wiring and grounding strictly in
accordance with manufacturer’s instructions. When
the Model ELP transmitter is combined with the
Model MTL7706+ intrinsic safety barrier, total cable
capacitance between the two must be limited to 0.12
µF, and total cable inductance must be limited to 4.0
mH (equivalent to 2700'/823m maximum Belden™
#8760 18/2 shielded twisted pair cable 0.18 µH/FT, 44
pF/F).
WE MAKE IT EASY.
kele.com
888-397-5353 USA
463
NEW!
HAZARDOUS LOCATIONS
FLOWLINE INTRINSICALLY SAFE ULTRASONIC LEVEL TRANSMITTER
ELP
INSTALLATION
Hazardous
Area
Safe Area
MTL7706+
Intrinsically Safe Barrier
3
+ -
4-20 mA
ELP
Level Probe
4
1
Power
Bus
20-35 VDC
+
2
1-5V
250Ω
–
Max Cable
C = 0.12 μF
L = 4.0 mH
HAZARDOUS LOCATIONS
8
Ground Here Only
MOUNTING
TABLE 1. BEAM RADIUS
B Option
Side Mount
Bracket*
The ELP can be mounted through any
threaded (2" NPT) opening in a tank top
or with the optional side-mount bracket.
Care should be taken to locate the ELP far
enough from tank walls to avoid
inter-ference with the beam. Avoid
locations near motors or other sources of
vibration.
D
* For depths (D) greater than 5' (1.5m), the
side-mount bracket must be extended
away from the tank wall according to
Table 1. The side-mount bracket provides
4.5" (11.4 cm) clearance from the wall only.
R
feet
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
DEPTH
meters
0.3
0.61
0.91
1.22
1.5
1.8
2.1
2.4
2.7
3.0
3.4
3.7
4.0
4.3
4.6
4.9
5.2
5.5
RADIUS
inches
cm
1.2
3.1
2.1
5.2
2.9
7.3
3.7
9.5
4.6
11.6
5.4
13.7
6.2
15.9
7.1
18.0
7.9
20.1
8.8
22.3
9.6
24.4
10.4
26.5
11.3
28.7
12.1
30.8
13.0
32.9
13.8
35.1
14.6
37.2
15.5
39.3
ORDERING INFORMATION
464
MODEL
ELP
ELP-B
DESCRIPTION
Intrinsically-safe ultrasonic level transmitter
Intrinsically-safe ultrasonic level transmitter with side-mount bracket
250R-3-1
DCP-1.5-W
MTL7706+
RELATED PRODUCTS
250 OHM 3 WATT 1% Resistor Long Leads
Power supply, 24 VAC IN to 24 VDC OUT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
888-397-5353 USA
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
PAGE
1299
995
474
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF FLOAT SWITCH
L4
DESCRIPTION
The Model L4 explosion proof float switch is a heavy duty
explosion proof switch for the most critical applications.
FEATURES
•
•
•
•
•
•
•
•
Explosion proof construction
Stainless steel float
Magnetically actuated
Good for specific gravities 0.7 and up
CE, CSA and UL listed; FM approved
1-1/2" NPT mounting
Class I, Division 1, Groups C, D;
Class II, Division 1, Groups E, F, G
WARNING: Models L4 and V4-2-U are not listed for use
in areas classified as Group A (acetylene) or Group
B (hydrogen and others). For these atmospheres, an
intrinsically safe system using standard dry-contact
switch, intrinsic safety barriers, and voltage-limiting
circuitry is recommended.
FM
C
US
APPROVED
SPECIFICATIONS
Limits
Operating Pressure
Contact Rating
Installation
Area
Dimensions
Approvals
Weight
Warranty
Temperature: -4° to 275°F
(-20° to 135°C)
100 psig (690 kPa)
SPDT, 10A, 125/250 VAC
Horizontal
Explosion proof Class I, Division 1,
Groups C, D; Class II, Division 1,
Groups E, F, G
19-5/32" L (48.7 cm) x 3.34" Ø
(8.5 cm)
UL File #E31755, CSA, CE, FM
4.3 lb (1.95 kg)
1 year
DESCRIPTION
The Model V4-2-U explosion proof flow switch is a
dependable solution for protecting against low flow conditions
in pipelines for liquids, gases, and flowing solids.
C
FM
US
APPROVED
SPECIFICATIONS
FEATURES
• Explosion-proof construction
• Stainless steel vanes
• Accommodates pipe sizes 1-1/2" and up
• Magnetically actuated
• CE, CSA, and UL listed; FM approved
• 1-1/2" NPT mounting
• Class I Division 1 Groups C, D;
• Class II Division 1 Groups E, F, G
Limits
Operating Pressure
Contact Rating
Installation
Area
Dimensions
Approvals
Weight
Warranty
Temperature: -4° to 275°F
(-20° to 135°C)
1000 psig (6900 kPa)
SPDT, 10A @ 125/250 VAC
Within 5 degrees of vertical
Explosion proof Class I, Division
1, Group C, D; Class II, Division 1,
Groups E,F,G
13-1/2" (34.3 cm) overall length;
6-3/4" (17.1 cm) top of cover to
bottom of threads
UL listed File #E31755, CSA, CE,
FM
4.5 lb (2.0 kg)
1 year
HAZARDOUS LOCATIONS
EXPLOSION PROOF FLOW SWITCH
V4-2-U
8
ORDERING INFORMATION
March 2014
MODEL
V4-2-U
L4
DESCRIPTION
Explosion proof flow switch
Explosion proof float switch
ACK6F
EYM-75
RELATED PRODUCTS
Cement: 30 oz * (850g) Fiber: 5 oz (142g), 25 cu in (410 cu cm) volume when set
* Consists of five 6 oz (187g) cement pouches
3/4" size, 1.19" turning radius, 2 oz Kwiko cement required, Malleable Iron construction
WE MAKE IT EASY.
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489
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465
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF GAS MONITOR / TRANSMITTER
SPXCD SERIES
DESCRIPTION
The Honeywell Analytics XCD Series explosion proof gas
monitor/transmitter provides comprehensive monitoring
of flammmable, toxic, and oxygen gas hazards in potentially
explosive atmospheres. Users can modify detector operation
using the LCD and magnet switches without ever needing to
open the unit. This enables one-man, non-intrusive operation
and reduces routine maintenance time and costs. The XCD
series is suitable for both indoor and outdoor use.
FEATURES
HAZARDOUS LOCATIONS
8
C
FM
US
APPROVED
• User friendly and intuitive tri-colored backlit display
with digits, bar graph, and icons
• Fully configurable via magnetic switches
• Selectable sink or source 4-20 mA output
• Built in Alarm and Fault relays
• MODBUS communications for remote diagnostics/
configuration
• Removable plug in display module provides easy
access to terminal area
•
•
•
•
Integral mounting bracket
2 x M20 or 3/4" NPT cable/conduit entries
Epoxy painted aluminum alloy housing
Class I, Division 1 Groups B, C, and D; Class I, Division
2, Groups B, C, and D; Class II, Division 1 Groups E, F,
and G; Class II, Division 2, Groups F and G
COMMON SPECIFICATIONS
Supply Voltage
16 to 32 VDC @ 208.3 mA
Operating Temperature-40° to 149°F (-40° to 65°C)
Conduit Connection
2 x 3/4" NPT
Materials Of
Construction
Housing: Epoxy painted aluminum
alloy LM25; Sensor: stainless steel
Housing Type
IP66
Mounting
Integral mounting plate with 4 x
mounting holes suitable for M8 bolts
Communication
RS485, MODBUS RTU
Inrush Current
800 mA @ 24 VDC maximum
Output Current
4 - 20 mA sink or source
Relays
3 x 5A@250VAC. Selectable
normally open or normally closed
(switch) and energized/de-energized
(programmable). Alarm relays
default normally open/de-energized.
Fault relay default normally open/
energized
15 x screw terminals
20 to 14 AWG
Class I, Division 1 Groups B, C, and
D; Class I, Division 2, Groups B, C,
and D; Class II, Division 1 Groups E,
F, and G; Class II, Division 2, Groups
F and G, UL File #E186567, CE
4.4 lb (2 kg)
1 Year
Terminals
Wire Size
Approvals
Weight
Warranty
WIRING
RLY 1
24 VDC Power Supply
4-20 mA Signal
Modbus Communication
+
1
24 VDC
-
2
0 VDC
+
3
4-20 mA Signal
-
4
Common
+
5
TxD
-
6
RxD
RLY 2
RLY 1
NC
7
COM
8
NO
9
NC
10
COM
11
NO
12
NC
13
COM
14
NO
15
SPXCD
466
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March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF GAS MONITOR / TRANSMITTER
SPXCD SERIES
INDIVIDUAL SPECIFICATIONS
GAS
User Selectable Default
Default Alarm Points
User Selectable Default
Response
Steps Calibration Gas Calibration
Accuracy
Full Scale Range Range
Time (T90)
A1
A2
Range
Point
Electrochemical Sensors
Oxygen (O2)
25.0% V/V only
25.0% V/V
n/a
10 to 100 ppm
50 ppm
1.0 ppm
100 to 1000 ppm
300 ppm
100
ppm
Hydrogen (H2)
1000 ppm only
1000 ppm
n/a
Nitrogen Dioxide
(NO2)
10 to 50 ppm
10 ppm
5.0 ppm
20 to 100% LEL
100% LEL
10%
LEL
Methane (CH4)
20 to 100%
100% LEL
Propane (C3H8)
20 to 100% LEL
100% LEL
Carbon Dioxide
(CO2)
2% Vol only
2% V/V
Hydrogen Sulfide
(H2S)
Carbon Monoxide
(CO)
20.9 V/V (fixed)
30 to 70% of selected
full scale range
20.9 V/V
<30 sec
≤± 0.5%
Vol.
19.5 V/V▼▼▼ 23.5 V/V ▲
25 ppm
<50 sec
≤± 1 ppm
10 ppm ▲▲
100 ppm
<30 sec
≤± 6 ppm 100 ppm ▲ ▲ 200 ppm ▲ ▲
500 ppm
<65 sec
≤± 25 ppm 200 ppm ▲▲ 400 ppm ▲▲
5 ppm
<40 sec
± 3 ppm or
5.0 ppm ▲▲ 10.0 ppm ▲▲
± 20%
50% LEL
<25 sec
≤± 1.5% LEL 20% LEL ▲▲ 40% LEL ▲▲
50% LEL
<40 sec
≤± 1.5% LEL 20% LEL ▲▲ 40% LEL▲ ▲
50% LEL
<40 sec
≤± 1.5% LEL 20% LEL ▲▲ 40% LEL ▲▲
1% V/V
<40 sec
20 ppm ▲▲
Catalytic Bead Sensors
Flammable
25 to 95% of selected
full scale range
8
Infrared Sensors
N/A
30 to 70% of selected
full scale range
≤± 2% Vol.
Falling Alarm
0.40% V/V
0.80% V/V▲ ▲
▲▲
▲ ▲Rising Alarm
HAZARDOUS LOCATIONS
10%
LEL
10%
LEL
▲▲
ORDERING INFORMATION
MODEL
SPXCDULNCXM
SPXCDULNFXM
SPXCDULNHXM
SPXCDULNNXM
SPXCDULNO1M
SPXCDULNG1M
SPXCDULNRXM
SPXCDULNPXM
SPXCDULNB1M
S3KCAL
SPXCDCC
SPXCDDMK
SPXCDMTBR
SPXCDSPD
March 2014
DESCRIPTION
UL/CSA Approved Carbon Monoxide 0-250ppm, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL/CSA Approved Combustibles 0-100% LEL, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL/CSA Approved Hydrogen Sulfide 0-50ppm, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL/CSA Approved Nitrogen Dioxide 0-50ppm, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL/CSA Approved Oxygen 0-25%, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL/CSA Approved Hydrogen 0-1000ppm, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL Approved Methane 0-100% LEL, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL Approved Propane 0-100% LEL, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
UL Approved Carbon Dioxide 0-2% VOL, 4-20mA, 3 Relays, ModBus, Aluminum Enclosure
Calibration cap
Collecting cone for use with lighter than air gases
Duct mounting kit
Mounting bracket (inc. bolts, nuts, brackets)
Sunshade / Deluge Protection
WE MAKE IT EASY.
kele.com
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467
NEW!
HAZARDOUS LOCATIONS
DET-TRONICS EXPLOSION PROOF DUCT SMOKE DETECTOR
30-3003D
DESCRIPTION
The Det-Tronics Model 30-3003D explosion proof duct
smoke detector provides early detection of smoke and
products of combustion in air moving through HVAC ducts.
An intake tube accomplishes air sampling. A return tube, duct
enclosure, junction box, and instruction manual are included
with the base unit. The detector and junction box are listed for
use in atmospheres with hazardous gases or dusts (Groups
C, D, E ,F ).
FEATURES
HAZARDOUS LOCATIONS
8
•
•
•
•
Class I, Division 2, Groups A, B, C, D
Trouble-free photoelectric detector
24 VDC operation
Contacts (3): N.O. (alarm), N.C. (supervisory), SPDT
(auxiliary)
SPECIFICATIONS
Supply Voltage
Contact Rating
Alarm Auxillary
Air Velocity
Area
Enclosure Rating
Sampling Tube
Return Tube
Dimensions
Approvals
Weight
Warranty
468
30-3003D
WIRING
20-28 VDC @ 10 mA standby, 50
mA alarm
SPST, 1A @ 30 VDC
SPDT, 2A @ 30 VDC
600-4000 fpm (3-20 mps)
Explosion proof Class I, Division
2, Groups C,D; Class II, Division 2,
Groups E, F, G; Class III
Detector :NEMA 4X fiberglass;
Detector and junction box: NEMA3,
7CD, 9EF, 12
3/4" galvanized EMT in 1', 3', 6', or
10'L (0.3, 0.9, 1.8, or 3m)
12"L (30.5 cm), included
12.75" H x 3.5" W x 6" D
(32.4 x 8.9 x 15.2 cm)
CSA
13.0 lb (5.9 kg)
1 year
888-397-5353 USA
kele.com
(yellow)
(yellow)
(violet)
(violet)
(black)
(red)
Factory Wiring
to Detector
1 2 3 4 5 6
TB-2
1 + 24 VDC Power Supply
2 –
Normally Closed
3
Supervisory
4
Contacts
5
Normally Open
Alarm Contacts
TB-3
1
2 C
Auxiliary
3 NO
SPDT Contacts
4 NC
5 Ground
Wiring Terminal
Box
Note: Circuit shown in the normal standby energized mode.
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
DET-TRONICS EXPLOSION PROOF DUCT SMOKE DETECTOR
30-3003D
DIMENSIONS
6.12 (155)
Alarm Indicator
11.62 (295)
9.38
(238)
0.31 (7.9) DIA
Mounting
4 Places
14.75
(375)
8
MOUNTING
Mount the detector in an air duct using the provided template.
Detector must be mounted at least six duct widths from the fan
or other sources of turbulence.
Stopper
Air Flow
Entire Width
of Duct
The intake sampling tube has holes drilled the entire length of
the tube and should extend the entire width of the duct. The
holes must be facing into the air flow.
1. Cut the intake sampling tube to the desired length.
2. Firmly insert the stopper (packaged in the installation kit)
in the end of the intake sampling tube.
3. Follow instruction sheet provided with each detector.
Exhaust
Tube
Intake
Tube
HAZARDOUS LOCATIONS
CAUTION: Conduit seal MUST be installed within code required
distance from junction box to maintain explosion proof rating.
Top of Detector
ORDERING INFORMATION
MODEL
30-300D-1
30-3003D-3
30-3003D-6
30-3003D-10
DESCRIPTION
Explosion proof duct smoke detector, photoelectric with 1' duct sampling tube
Explosion proof duct smoke detector, photoelectric with 3' duct sampling tube
Explosion proof duct smoke detector, photoelectric with 6' duct sampling tube
Explosion proof duct smoke detector, photoelectric with 10' duct sampling tube
ACK6F
RELATED PRODUCTS
Cement: 30 oz * (850g) Fiber: 5 oz (142g), 25 cu in (410 cu cm) volume when set
* Consists of five 6 oz (187g) cement pouches
1" size, 1.38" turning radius, 4 oz Kwiko cement required, Malleable Iron construction
EYM-100
March 2014
WE MAKE IT EASY.
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489
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888-397-5353 USA
469
NEW!
HAZARDOUS LOCATIONS
BALMAC VIBRATION TRANSMITTER / SWITCH
550-X
DESCRIPTION
HAZARDOUS LOCATIONS
8
The Balmac Model 550-X vibration switch provides low
cost, reliable vibration protection for rotating machinery
operating within the range of 120-60,000 rpm. The switch's
vibration sensor, mounted perpendicular to the unit's base,
responds to the velocity signal (in/sec) and effects automatic
shut-down or alarm when pre-set limits are exceeded. The
unit may be mounted with the sensitive axis in any plane
(horizontal, vertical or axial), even in an inverted position.
Two limit set points are provided. One is set for the maximum
allowable vibration (in/sec), while the other is set for a
percentage of that setting, tripping the alarm relay when
that percentage is reached. A built-in, adjustable time delay
prevents triggering due to transient vibrations. The switch
can be wired for latch and remote reset or for automatic reset
when vibration falls below set point. The unit has a 4-20 mA
output that may be used with a panel meter or data logger,
permitting analysis of vibration trends. Once the switch has
been installed and the limits set, it requires no attention. The
Model 550-X vibration switch is enclosed in an explosion
proof housing suitable for Class I, Division 1, Groups C, D
and Class II, Division 1, Groups E, F, G.
C
FM
US
APPROVED
550-X
DIMENSIONS
in
(cm)
0.38
(0.95)
Two Mounting Holes
5/16" dia
0.38 (0.95)
FEATURES
•
•
•
•
Reliable performance
Dual SPDT relay and 4-20 mA output
Easy to install
Class I, Division 1, Groups C, D; Class II, Division 1,
Groups E, F, G
6.75
(17.15)
6
(15.24)
4.06
(10.32)
4.19
550-X
SPECIFICATIONS
Supply Voltage
Limits
Limit #1 (alarm) 100-130 VAC, 50/60 Hz
Set as a percent of Limit #2
(shutdown)
Limit #2 (shutdown) Set at a velocity level in inches/sec
Measurement Range 0.1-2.75 in/sec (2.5-70 mm/sec)
Frequency Range
2-1000 Hz (120-60,000 rpm)
Time Delay
1-30 seconds
Relay Output
SPDT relay 5A @ 125 VAC; 5A @
28 VDC
Signal Output
4-20 mA DC
Accuracy
±5%
Maximum Output
Impedance
500Ω
Vibration Sensitive
Axis
Perpendicular to the base,
omnidirectional mounting
470
888-397-5353 USA
kele.com
Remote Reset
Circuit closure between latch and
common will reset both outputs
Area
Explosion proof housing Class I,
Div 1, Groups C, D: Class II, Div 1,
Groups E, F, G; NEMA 7CD, 9EG
Conduit Connections 3/4" NPT
Wiring Terminations Accept 12 AWG wire
Operating Temperature-30° to 165°F (-34° to 74°C)
Mounting
1/4" hardware, 3 mounting holes
Dimensions
4.81"W x 7.13"H x 4.5"D
(12.2 x 18.1 x 11.4 cm)
Approvals
CSA
Weight
5.5 lb (2.5 kg)
Warranty
2 years
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
BALMAC VIBRATION TRANSMITTER / SWITCH
550-X
WIRING
The wiring access is through the 3/4" NPT conduit hole on
the side of the switch enclosure. Wiring subject to physical
damage should be adequately protected. When installing
electrical conduit, a short length (12"/30 cm) of flexible
conduit must be used between the vibration switch and an
associated junction box. This construction will provide some
vibration isolation in the conduit line. Conduit and fittings
should conform to the environment of the vibration switch
location. Weather-resistant or rain-tight fittings should be
used to protect the switch wiring from a humid or corrosive
atmosphere. Make all connections in accordance with
national and local codes.
4-20 mA
Signal
4-20mA
Mute
Reset (N.O.)
Jumper for
Non-Latching
Operation
Latch
Common
C
Form C Contacts
to Alarm and
Shutdown Circuits
N/C
N/O
C
N/C
N/O
115 VAC 50/60 Hz
Note: Model EYM-75 conduit seal is required within 18" (45
cm) of the enclosure to maintain explosion proof rating.
Limit #1
Alarm
Limit #2
Shutdown
L2
L1
8
TYPICAL INSTALLATION
VS
VS
VS
Reciprocating
Compressor
Centrifugal Compressor
VS
VS
Y-Type Compressor
VS
VS
Vertical Pump
The Model 550-X is a self-contained, vibration protection
limit switch. It guards against destructive levels of vibration
by tripping a relay that has a user-adjustable limit setpoint
in terms of vibration velocity (in/sec). This relay output
is connected to an alarm or control system to provide a
warning or shutdown. It mounts at the monitoring point and
is enclosed in a water-tight, heavy-cast aluminum housing.
Terminals are provided for remote or manual reset. A 4-20
mA output for recording or metering can connect to a remote
readout panel meter or BAS controller.
CAUTION: Ensure that the switch is rigidly attached to
the monitoring point for the proper sensing of the
vibration.
HAZARDOUS LOCATIONS
VS
OPERATION
VS
VS
Engine Gear Compressor
VS
Cooling Tower Fan
ORDERING INFORMATION
March 2014
MODEL
550-X
DESCRIPTION
Vibration transmitter/switch with 0.1-2.75 in/sec (2.5-70 mm/sec) range, two limits, and NEMA 7CD,
9EFG enclosure
ACK6F
EYM-50
RELATED PRODUCTS
PAGE
Cement: 1.9 lb * (0.9 kg) Fiber: 0.3 LB (0.14 kg), 25 cu in (410 cu cm) volume when set
* Consists of five 0.4 lb (0.19 kg) cement pouches 489
1/2" size, 1.06" turning radius, 1 oz Kwiko cement required, Malleable Iron construction
488
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NEW!
HAZARDOUS LOCATIONS
INTRINSICALLY SAFE VIBRATION TRANSMITTER
140T- HAZARDOUS
DESCRIPTION
The Balmac Model 140T intrinsically safe vibration
transmitter is low cost, yet highly accurate and rugged. It is
ideal for use with all machines, even those which previously
may have been considered uneconomical to monitor. The
Model 140T easily mounts by use of a standard 1/4"-20 stud.
It is a two-wire, loop-powered transmitter which can feed
the vibration level of operating machinery to a data logger,
milliamp monitor, or process control computer. Solid state
accelerometer and circuit design provide a 4-20 mA signal
proportional to vibration velocity. Intrinsically safe, it can be
used in hazardous environments when coupled with a Model
MTL7706 Intrinsic Safety barrier.
FEATURES
HAZARDOUS LOCATIONS
8
•
•
•
•
Reliable performance
Easy to install
4-20 mA output
Intrinsically safe Class I, Division 1, Groups A, B, C, D;
Class II, Division 1, Groups E, F, G
DIMENSIONS
in
(cm)
APPLICATION
Vibration monitoring can help alert the maintenance staff
to the destructive effects of vibration on mechanical system
equipment such as air handler fans, cooling
tower fans, pumps, and compressors.
1" NPT
0.38 (0.95)
1.75
(4.44)
1.13
(2.86)
1.31 dia
(3.33)
Mounting Connection
1/4-20 0.38 (0.95)
SPECIFICATIONS
Supply Voltage
Frequency Range
Isolation
Maximum Output
Impedance
Signal Output
Accuracy
Vibration Range
472
12-50 VDC, black=negative,
red=positive, reverse polarity
protection
7-1300 Hz ±3% (420-78,000 rpm)
500V, circuit-to-case
Operating Temperature-4° to 185°F (-20° to 85°C)
Enclosure Rating
NEMA 4, weatherproof,
Cadmium-plated steel
Process Connection 1" MNPT
Mounting
1/4''-20 stud, 3/8" deep
RL = 50 (Vs-12)Ω; 600Ω @ 24 VDC
4-20 mA
5% to 10% of scale
Output 4-20 mA, proportional to
vibration level, 0-1 in/sec (0-25.4 mm/
sec), Output 4-20 mA, proportional
to vibration level, 0-2 in/sec (0-50.8
mm/sec)
Approvals
Weight
Warranty
888-397-5353 USA
kele.com
UL listed file #E126345
0.41 lb (0.18 kg)
1 year
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
INTRINSICALLY SAFE VIBRATION TRANSMITTER
140T- HAZARDOUS
INSTALLATION
The mounting orientation can be in any position. This position should be in an area for the best vibration signal definition or where
there is a good transfer of the machines (fans, pumps, etc.) vibrations. The best location will vary from machine to machine. The
location of the transmitter should be selected carefully. When selecting the site for the mounting location, it is helpful to survey the
site with the aid of a vibration meter.
WIRING
Hazardous Safe
Area
Wiring subject to physical damage should be adequately
Area
protected. When installing electrical conduit, it is
recommended that a short length (12"/30 cm) of flexible
conduit be used between the transmitter and an associated
junction box. This construction will provide some vibration
isolation in the conduit line. Conduit and fittings should
4-20 mA
conform to the environment of the transmitter location.
Weather-resistant or rain-tight fittings should be used to
140T
protect the transmitter wiring from a humid or corrosive
Max Cable
C=0.08 μF
atmosphere. Make all connections in accordance with
L= 4.0 mH
national and local codes.
MTL7706 +
IS Barrier
3
4
20-35 VDC
+
1
2
250Ω
1-5V
–
8
Ground Here Only
Intrinsically Safe Wiring
HAZARDOUS LOCATIONS
CAUTION: Intrinsically safe devices require the use of an intrinsic safety barrier when applied in hazardous locations.
Provide wiring and grounding strictly in accordance with manufacturer’s instructions. When the Model 140T
transmitter is combined with the Model MTL7706 intrinsic safety barrier, total cable capacitance between the two
must be limited to 0.08 µF, and total cable inductance must be limited to 4.0 mH (equivalent to 1800'/548m maximum
Belden® #8760 18/2 twisted pair cable 0.18 µH/FT, 44 pF/F).
You must ensure that the transmitter is rigidly attached to the monitoring point for the proper sensing of the vibration.
ORDERING INFORMATION
March 2014
MODEL
140T-1
140T-2
DESCRIPTION
Intrinsically-safe vibration transmitter, range 0-1 in/sec (25.4 mm/sec)
Intrinsically-safe vibration transmitter, range 0-2 in/sec (50.8 mm/sec)
250R-3-1
DCP-1.5-W
MTL7706+
RELATED PRODUCTS
250 OHM 3 WATT 1% resistor long leads
Power supply, 24 VAC IN to 24 VDC OUT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
WE MAKE IT EASY.
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995
474
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NEW!
HAZARDOUS LOCATIONS
INTRINSIC SAFETY BARRIERS
MTL5000, MTL7000, MTL7700 SERIES
DESCRIPTION
8
The MTL7000, MTL7700 and MTL5000 Series of ultraslim intrinsic safety barriers are the worldwide standard in
protection and accuracy for intrinsically safe sensing and
controlling devices in hazardous locations. The electronic
design limits the amount of electrical energy that can be
transmitted into the hazardous area to a level below the
ignition energy of even the worst-case explosive mixture of
fuel and air. This level of protection remains intact even in the
event of two simultaneous faults, thus providing the highest
possible safety rating for this type of system.
All MTL7000, MTL7700 and MTL5000 Series barriers are
FM approved for use in intrinsically safe systems under
the entity concept and can thus be applied with the widest
possible array of intrinsically safe devices.Designed for ease
of installation, these barriers provide a positive intrinsic safety
ground through the DIN rail. Isolating spacers are available
for applications in which the intrinsic safety ground must be
separate from the mounting panel's earth ground (ANSI / ISA
RP-12.6 specifies grounding requirements).
C
FM
US
APPROVED
MLT7700 SERIES
HAZARDOUS LOCATIONS
FEATURES
• FM entity approval Class I, II, and III, Division 1,
Groups A, B, C, D, E, F, G
• BASEEFA approval EEx [ia], IIC
• DIN rail mounting with integral intrinsic safety ground
• Compact size
DIMENSIONS
in
(cm)
Installation and approval side label
Hazardous Area
Terminals
APPLICATION
According to the entity concept, barriers must be selected
to limit the available hazardous area voltage (V) and current
(I) to levels below the rating of the intrinsically safe device
(Vmax, Imax). Also, the combined capacitance (C) and
inductance (L) of the intrinsically safe device and cabling
must be less than the maximum ratings for the barrier (La,
Ca). The great majority of applications can be satisfied with
one of the six key barrier types stocked by Kele. Other types
are available to suit most every application, contact Kele
for assistance. Refer to the Hazardous Location Application
Guide in the Technical Reference section for more detailed
barrier selection procedures.
3
Safe Area
Terminals
1
2
4
3.543
(9 cm)
4.134
(10.5 cm)
Product top label
Color-coded top label
0.496
(1.26 cm)
MTL7700 SERIES
474
888-397-5353 USA
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WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
Hazardous
Terminals
NEW!
HAZARDOUS LOCATIONS
INTRINSIC SAFETY BARRIERS
MTL5000, MTL7000, MTL7700 SERIES
SAFETY SPECIFICATIONS
Entity Safety Parameters
I
Ω
C(max)
L(max)
(mA)
(µF)
(mH)
93
300
0.083
4.2
Max
Voltage
35
End to End
Resistance
(Ω)
N/A
1.45
12.5
124
0.12
4.2
27
333
2.4
0.083
165
4.2
35
35
N/A *
333
Application
Model
V
4-20 mA
Two-wire transmitter
DI 200 Series
flow sensors
Controller output
4-20 mA
Dry contact/Dry contact
Digital output
MTL7706+
28
MTL7765ac
15
150
100
0.58
MTL7728+
28
93
300
MTL5011B
MTL7728+
10.5
28
14
93
800
300
* The MTL5011B is isolated end to end.
ADDITIONAL SPECIFICATIONS
MTL7765ac (for DI 200 Series flow sensors and other generalAC and DC systems)
Working voltage
12.0 VDC @ 10 μA leakage current
Max safe area voltage 250 VAC/VDC
Area Class I, II, III, Div 1, Groups A, B, C,D, E, F, G
Agency approvals
FM BASEEFA EEx [ia] IIC
Weight 0.3 lb (0.14 kg)
8
HAZARDOUS LOCATIONS
MTL7706+ (for loop-powered 4-20 mA transmitters)
Supply Voltage 20-35 VDC
Current 45 mA typical @ 20 mA with24 VDC supply
@ mA
20 mA
with20@
VDC
Supply Current 60 mA max45
tyipica
20supply
mAl with 24 VDC supply; 60 mA maximum @ 20 mA with a 20 VCD supply
Transmitter
voltage
16
VDC
min
@
20
mA
with 250Ω load
Supply Voltage
20-35 VDC
11 VDC min
Accuracy
2 @ 20 mA with 500Ω load
Safe
area
load
500Ω
max
Maximum Safe Area Voltage
250 VAC/VDC
Accuracy
4-20 mA
range
Safe
Area Load ±2 μA over500Ω
maximum
Max safe area voltage 16
250
VAC/VDC
Transmitter
VDC
minimum @ 20 mA with 250Ω load; 11 VDC @ 20 mA with 500Ω loadEach explosion proof box
Area Class I, II, III, Divhas
1, Groups
A, B, C,D,
F, Gsurface applications and includes 3/4" FNPT tapped conduit entry on the top side.
mounting
earsE, for
Agency approvals FM BASEEFA EEx [ia] IIC
Weight 0.3 lb (0.14 kg)
MTL5011B (dry contact to dry contact isolator)
Supply voltage 20-35 VDC, 40 mA max
Contacts
2A @ 250 VAC, 40 VDC
Max safe area voltage 250 VAC/VDC
Area Class I, II, III, Div 1, Groups A, B, C, D, E, F, G
Agency approvals
FM/UL BASEEFA EEx [ia] IIC
Weight 0.3 lb (0.14 kg)
MTL 7728+ (for switched digital outputs)
Supply voltage 10-35 VDC (regulated)
Supply current 1.5 mA plus load current, actively limited to 50 mA totalto protect safety fusing (50 mA)
Output current (Iout) Up to 35 mA
Max safe area voltage 250 VAC/VDC
Area Class I, I, III, Div 1, Groups A, B, C, D, E, F, G
Agency approvals
FM BASEEFA EEx ia IIC
Weight 0.3 lb (0.14 kg)
WARNING: Check compatibility of the electrical safety parameters of the field equipment with those of the barriers to
make sure that the combination is safe. If an intrinsically safe device does not have entity approval, it must be paired
with a barrier specifically listed in its intrinsic safety drawing (control drawing).
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INTRINSIC SAFETY BARRIERS
MTL5000, MTL7000, MTL7700 SERIES
WIRING
Hazardous Area Safe Area
7
8
9
10
11
12
6
5
I/P
3
2
1
680Ω
22 kΩ
Output SPDT
13
14
Resistors only
required for
line fault
detection
Vs- 20-35 VDC
Vs+
MTL5011B
Dry Contact to Dry Contact
Digital Input
8
Hazardous Area Safe Area
HAZARDOUS LOCATIONS
4-20 mA
Power Bus
3
1
4
2
Power 20-35 VDC
250Ω
4-20 mA
Two-wire
Transmitter
1-5V
Ground Here Only
MTL7706+
4-20 mA Input from Hazardous Area
Hazardous Area Safe Area
4-20 mA
Signal to
Controlled
Device or
Display
4-20 mA
Signal
from
Controller
1
3
2
4
Shield
Ground Here Only
MTL7728+
4-20 mA Output to Hazardous Area
Hazardous Area Safe Area
LED,
Alarm,
Solenoid,
etc.
Iout
3
1
4
2
Digital Output
10-35 VDC (regulated)
Ground Here Only
MTL7728+
Digital Output to Hazardous Area
476
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HAZARDOUS LOCATIONS
INTRINSIC SAFETY BARRIERS
MTL5000, MTL7000, MTL7700 SERIES
WIRING (CONTINUED)
Hazardous Area Safe Area
Shield
3
RED
BLK
DI 200 Series
Flow Sensors
1
SIG
2
4
COM
Shield
UFT-1
Ground Here Only
MTL7765ac
DI 200 Series Flow Sensors
8
HAZARDOUS LOCATIONS
ORDERING INFORMATION
March 2014
MODEL
MTL5011B
MTL7706+
MTL7728+
MTL7765AC
DESCRIPTION
Isolator for digital (dry contact) inputs, SPDT
Intrinsic safety barrier, 4-20 mA two-wire transmitters
Active barrier for 4-20 mA outputs to hazardous area devices
Intrinsic safety barrier
250R-3-1
DCP-1.5-W
DCPA-1.2
DIN-3F
RELATED PRODUCTS
250 OHM 3 WATT 1% resistor long leads
Power supply, 24 VAC IN to 24 VDC OUT
Power supply, 120 VAC IN to 24 VAC/24 VDC OUT
35 mm DIN rail, steel, 39.4" (1m), RoHS compliant
WE MAKE IT EASY.
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995
994
860
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EXPLOSION PROOF WHISKER SWITCH
10316H2176
DESCRIPTION
The Model 10316H2176 explosion proof limit switch
combined with the Model E50KL421 whisker spring rod offers
an ideal solution for sensing equipment position in extreme
environments. The switch also carries standard NEMA ratings
for most environments. Isolated normally-open and normallyclosed contacts are included. The aluminum housing and
stainless steel whisker gives corrosion resistance.
10316H2176
FEATURES
• One-way gasket keeps liquids out, but allows gases to
escape
• Aluminum housing offers corrosion resistance
• Whisker spring rod gives mounting options
• NEMA 1,4, 7, 9, 13 ratings
8
SPECIFICATIONS
HAZARDOUS LOCATIONS
Switch
Materials Of
Construction
Conduit Entrance
Mounting
Enclosure Rating
E50LK421
DIMENSIONS
1 N.O. & N.C., 120 VAC; 60A make,
6A break
Cast aluminum die cast
3/4" pipe tap
Surface mount
NEMA 1, 4, 13, 7 Division 1, Class
I BCD, 9 Division 1, Class II EFG
(Note: a conduit seal-off kit is
required for these switches)
Operating Temperature-20° to 200°F (-29° to 93°C)
Materials Of
Construction
Stainless steel
Rod Diameter
0.09 in (0.23 cm)
Rod Length
11.612 in (29.5 cm)
Minimum Return
Torque
4.5 in-oz
Weight
10316H2176
1.65 lb (0.75 kg)
E50LK421
0.25 lb (0.11 kg)
Warranty
1 year
0.277 (0.7)
.685
(1.7)
0.257 (0.7) DIA.
4 MTG. HOLES
5.35
(13.6)
0.5
(1.3)
2.29 DIA.
(0.9)
STEEL
SPRING ROD
228.6
(9.0)
3.08
(7.8)
295.15
(11.62)
0.325
(0.8)
3.5
(8.9)
3/4 - 14 TAPER
PIPE TAP
4.165
(10.6)
6.35
(.25)
0.945
(2.4)
2.54
(6.5)
2.36
(6.0)
3.0
(7.6)
TYPE CX
TYPE CBX
16.26
(6.4)
28.45
(1.12)
12.7
(.50)
9.65
(38)
E50KL421
Adjustable Side Pushbutton Head
Electrical Data — Maximum Contact Ratings, per Pole
AC Volts
B600
120
240
480
600
Current, Amperes
Make
Break
30
15
7.5
6
3
1.5
0.75
0.60
Cont.
Volt Amperes
Make
Break
DC Volts
DC Current, Ampere
5
3600
120
240
0.1
0.05
360
ORDERING INFORMATION
MODEL
10316H2176
E50KL421
478
888-397-5353 USA
DESCRIPTION
Explosion proof whisker switch 1 normally-open, 1 normally-closed contact
Whisker spring rod
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NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF HORNS & STROBES
878EX, 879EX, 116EXMST
DESCRIPTION
These Edwards horns and stobes offer a selection that
should meet any hazardous location alarming need.
DIVISION 1 & 2 HORNS MODELS 8783X, 879EX
FEATURES
• Heavy-duty, high-decibel vibrating horn
• Corrosion-resistant epoxy finish
• NEMA 4X
• Wall-mounting with side brackets
• Power connection wires embedded in sealing
compound
• Tapped for 3/4" conduit
• 97 dB at 10 feet
• 120 VAC (878EX-N5), 24 VDC @ 160 mA (879EX-G1)
• UL listed for Class 1, Divisions 1 and 2, Groups B, C,
D; Class II, Divisions 1 and 2, Groups E, F; Class III
locations
• UL File E14660
ORDERING INFORMATION
MODEL
878EX-N5
879EX-G1
DESCRIPTION
Divisions 1 and 2 horn 120 VAC
Divisions 1 and 2 horn 24 VDC
8
DIVISION 1 & 2 STROBE MODEL 116EXMST
FEATURES
High-impact glass dome
65 flashes per minute
800,000 peak candlepower
3000-hour lamp rating
NEMA 3R and 4X rated
UL listed 1638, 1203, Marine 1598A; CUL listed C22.2
No. 205; Class I, Division 1, Groups C, D; Class I,
Division 2, Groups A, B, C, D; Class II, Division 1,
Groups E, F, G; Class II, Division 2, Group F, G; Class III,
Division 1, Groups E, F, G; Class III, Division 2, Group G
• UL File E212211
HAZARDOUS LOCATIONS
•
•
•
•
•
•
ORDERING INFORMATION
MODEL
116EXMSTR-N5*
116EXMSTA-N5*
116EXMSTB-N5*
116-GRD
92-ST
116EX-P
116EX-B
116EX-C
116EX-S
March 2014
DESCRIPTION
Divisions 1 and 2 strobe, red lens 120 VAC
Divisions 1 and 2 strobe, amber lens 120 VAC
Divisions 1 and 2 strobe, blue lens 120 VAC
Optional dome guard
Replacement strobe tube
Pendant mount
Wall bracket mount (requires 116EX-C)
Ceiling mount
Stanchion mount
* Requires mount
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HAZARDOUS LOCATION CONTROL STATIONS
HL600 SERIES
DESCRIPTION
The HL600 Series hazardous location control stations
allow alarm and control interface in a hazardous environment.
The standard unit enclosure is rated NEMA 7/9 in a diecast
aluminum enclosure. Contacts are included. A 1/2" - 14 NPT
threaded opening is on the bottom. There are 12 standard
legends, but special legends can be provided.
FEATURES
8
• NEMA 7/NEMA 9 diecast aluminum enclosure surface
mount
• Rated Class I, Divisions 1 and 2, Groups B, C, D; Class
II, Divisions 1 and 2, Groups E, F, G
• Contacts included
• Momentary contacts available on special order
• Twelve standard legends, specials available
• Mechanically interlocked maintained contacts
• Weight 5 lb (2.27 kg)
• UL Listed
• One year warranty
HL600-FUEL-CI
CONTACT ELECTRICAL RATINGS
HAZARDOUS LOCATIONS
MODEL HL600
AC - NEMA TYPE B600
Inductive 35% Power Factor
Resistive 75% Power Factor
Make
Break
Continuous
Make, Break, and
Volts Amps
VA Amps VA
Carrying Amps
Continuous Carrying Amps
120
30.5
3600
3.75
360
5
5
240
15.0
3600
1.5
360
5
5
480
7.5
3600
0.75
360
5
5
600
6.0
3600
0.6
360
5
5
DC - NEMA TYPE P600
Inductive and Resistive
Volts
120
240
600
Make and
Break Amps
1.1
0.55
0.2
Continuous
Carrying Amps
5
5
5
ORDERING INFORMATION
MODEL DESCRIPTION
HL600 Hazardous location control station - surface mount - buttons labeled “ON” and “OFF”
STOP
EMERGENCY - STOP
POWER
EMERGENCY - POWER OFF
SHUTDOWN
EMERGENCY - SHUTDOWN
FUEL
FUEL SHUT-OFF
FUEL PUMP
FUEL PUMP CONTROL
GAS
GAS SHUT-OFF
BOILER
BOILER SHUTDOWN
HVAC
HVAC SHUTDOWN
VENT
VENTILATION STOP
VENTSTART
VENTILATION START
REFRIG
REFRIGERATION STOP
CHILLER
CHILLER STOP
SL
SPECIFIC LEGEND - SPECIFY
–
Maintained mechanically interlocked contacts (1 N.O. and 1 N.C.)
MO
Momentary contacts (2 N.O.)
EX
Extended head on red button
RS
Green button labeled “RESET,” red button labeled “STOP”
CI
Custom inscriptions on one or both buttons (specify)
HL600 – CHILLER
480
888-397-5353 USA
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–
EX
Example: HL600-CHILLER-EX Hazardous location control
station labeled “CHILLER STOP” with extended
head on “OFF” button.
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF CUSTOM CONTROL STATIONS
CXJ SERIES
DESCRIPTION
CXJ Series explosion proof custom control stations can be built to customer specifications with door-mounted pushbuttons,
pilot lights, selector switches, or potentiometers. Any combination of devices can be assembled in one of 75 sizes of aluminum
enclosures.
FEATURES
•
•
•
•
•
•
• NEMA 3, 7, and 9 (4X optional)
• UL and CSA available
• Class I, Division 1 and 2, Groups B,C, D; Class II,
Division 1 and 2, Groups E,F, G; Class III
• Separate operator devices available
Copper-free aluminum enclosures
Integral cast mounting feet
Enclosures suitable for drilling and tapping
Factory-installed operators in the cover
Controls installed and wired per specifications
Windows available
CUSTOM PUSH-BUTTON STATIONS
8
HAZARDOUS LOCATIONS
Custom Push-button stations are for applications requiring
only operator interface and/or pilot light indication. Stations
are available in one-hole to nine-hole arrangements.
Operators can be purchased separately.
CUSTOM CONTROL STATIONS
Control stations are used to house control components and
have the ability to add operators on the cover. The enclosures
are available in 75 shapes and sizes that fit any application.
WINDOW ENCLOSURES
Window enclosures are available with square or rectangular
windows. This provides convenient viewing of gauges,
meters, or control device displays.
CIRCUIT BREAKERS
Circuit breakers provide overload and short-circuit protection
on feeder or branch circuits, as well as lighting, heating, and
motor circuits. The enclosure includes an external breaker
operator handle that can be padlocked in on or off position.
The circuit breaker can be used as a general service
disconnect.
ORDERING INFORMATION
Call Kele to Order
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EXPLOSION PROOF ENCLOSURES
AXJ, XJAT SERIES
DESCRIPTION
The AXJ Series and XJAT Series explosion proof
enclosures consist of cast aluminum instrument housings
and junction boxes for explosion proof and dust ignition
proof applications. They are suitable for Class I, Division 1
and 2, Groups B, C, D; Class II, Division 1 and 2, Groups E,
F, G; and Class III. They are furnished with mounting feet,
a cover, and two 3/4" drilled and tapped conduit openings.
AXJ Series enclosures include cover hinges. The N1 suffix
adds a mounting panel which is 3/16" (0.476 cm) thick
aluminum. The XJAT Series is available in a glass window
and backplate version.
AXJ
XJATG
FEATURES
HAZARDOUS LOCATIONS
8
•
•
•
•
•
•
•
•
•
•
•
•
Machined flange on AXJ Series
Threaded opening on XJAT Series
Cast copper-free aluminum
Stainless steel hinge on AXJ Series
Optional aluminum backplate
3/4" NPT holes, top and bottom
Class I, Divisions 1 and 2, Groups B,C,D
Class II, Divisions 1 and 2, Groups E,F,G
UL File #146600 (AXJ, XJATG)
UL File #E94590 (XJATS)
XJAT Series Class III Nema 3, 4x, 7, and 9
AXJ Series Class III Nema 3, 7, and 9
XJATS
WARNING:All conduit runs must be sealed within six
inches of the enclosure.
DIMENSIONS
AXJ JUNCTION BOX DIMENSIONS in (cm)
MODEL
MODEL with BACKPLATE
AXJ664-H1-C2-M2
AXJ664-H1-C2-M2-N1
AXJ886-H1-C2-M2
AXJ886-H1-C2-M2-N1
AXJ12126-H1-C2-M2 AXJ12126-H1-C2-M2-N1
AXJ12186-H1-C2-M2 AXJ12186-H1-C2-M2-N1
AXJ18248-H1-C2-M2 AXJ18248-H1-C2-M2-N1
W
6.0
(15.24)
8.0
(20.32)
12.0
(30.48)
12.0
(30.48)
18.0
(45.72)
L
6.0
(15.24)
8.0
(20.32)
12.0
(30.48)
18.0
(45.72)
24.0
(60.96)
D
4.0
(10.16)
6.0
(15.24)
6.0
(15.24)
6.0
(15.24)
8.0
(20.32)
Dc
1.0
(2.54)
1.0
(2.54)
1.5
(3.81)
1.5
(3.81)
1.5
(3.81)
A
9.75
(24.76)
12.5
(31.75)
17.0
(43.18)
17.0
(43.18)
23.125
(58.73)
B
9.75
(24.76)
12.5
(31.75)
17.0
(43.18)
23.0
(58.42)
29.125
(73.97)
C
6.25
(15.87)
8.5625
(21.74)
9.5
(24.13)
9.5
(24.13)
11.875
(30.16)
E
5.12
(13.01)
4.5
(11.43)
8.62
(21.90)
14.12
(35.87)
18.37
(46.67)
w/o Back Plate
F
Lug bolt Weight lb (kg)
17
9.12
3/8"
(7.71)
(23.17)
36
10.75
3/8"
(16.32)
(27.30)
77
15.75
1/2"
(34.92)
(40.00)
116
15.75
1/2"
(52.61)
(40.00)
210
21.75
5/8"
(95.25)
(55.24)
A
W
L
B
E
Dc
D
C
F
AXJ SERIES
w/o Back Plate
XJATS JUNCTION BOX (SOLID COVER) DIMENSIONS in (cm)
March
MODEL
MODEL
BACKPLATE WHEN
W
L
D
Throat
Opening
C
E
F
Weight
lb 2014
(kg)
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IT
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6.0
6.0
4.12
5.75
7.25
7.25
7.0
5.0
8.5
12.0
XJATS2-C2-M2
XJATS2-C2-M2-N1
*
(15.24) (15.24) (10.47)
(14.60)
(18.41) (18.41) (17.78) (12.7) (21.59)
(5.44)
*
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NEW!
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L
E
HAZARDOUS
LOCATIONS
B
Dc
EXPLOSION PROOF ENCLOSURES
AXJ,
XJAT SERIES
D
C
DIMENSIONS (CONTINUED)F
AXJ SERIES
XJATS JUNCTION BOX (SOLID COVER) DIMENSIONS in (cm)
MODEL
MODEL with BACKPLATE
W
L
D
Throat Opening
6.0
6.0
4.12
5.75
* XJATS2-C2-M2-N1
(15.24) (15.24) (10.47)
(14.60)
* XJATS2-C2-M2
7.0
9.0
4.15
7.12
* XJATS14-C2-M2 * XJATS14-C2-M2-N1
(17.78) (22.86) (10.55)
(18.09)
12.0
12.0
6.12
9.12
XJATS11-C2-M2
XJATS11-C2-M2-N1
(30.48) (30.48) (15.55)
(23.17)
* Two diagonal mounting feet
w/o Back Plate
A
B
C
E
F
Weight lb (kg)
7.25
7.25
7.0
5.0
8.5
12.0
(18.41) (18.41) (17.78) (12.7) (21.59)
(5.44)
10.5
8.37
7.37
8.5
9.75
33.0
(26.67) (21.27) (18.73) (21.59) (24.76)
(14.97)
13.75 13.75
9.75
10.5
15.5
54.0
(34.92) (34.92) (24.76) (26.67) (39.37)
(24.49)
W
D
8
F
B L
H
C
XJATS SERIES
w/o Back Plate
XJATG JUNCTION BOX (with WINDOW) DIMENSIONS in (cm)
MODEL
MODEL with WINDOW
Throat
Glass Viewing
with WINDOW
and BACKPLATE
W
L
D
Opening
A
B
C
E
F
Weight lb (kg)
Area
12.0
4.0
6.0
6.0
4.12
5.75
7.25
7.25
7
5.0
8.5
* XJATG2-C2-M2 *XJATG2-C2-M2-N1 (15.24) (15.24) (10.47) (14.60) (18.41) (18.41) (17.8) (12.7) (21.59)
(5.44)
(10.16)
33.0
5.25
7.0
9.0
4.15
7.12
10.5
8.37
7.37
8.5
9.75
* XJATG14-C2-M2 *XJATG14-C2-M2-N1 (17.78) (22.86) (10.55) (18.09) (26.67) (21.27) (18.73) (21.59) (24.76) (14.96)
(13.33)
54.0
6.75
12.0
12.0
6.12
9.12
13.75
13.75
9.75
10.5
15.5
XJATG11-C2-M2 XJATG11-C2-M2-N1 (30.48) (30.48) (15.55) (23.17) (34.92) (34.92) (24.8) (26.67) (39.37)
(24.49)
(17.14)
* Two diagonal mounting feet
W
HAZARDOUS LOCATIONS
E
A
D
F
B L
E
A
H
C
XJATG SERIES
March 2014
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EXPLOSION PROOF ACTUATOR ENCLOSURE (FOR VALVES AND DAMPERS)
MA8, MC6/7, MP6/7 SERIES
DESCRIPTION
The Schneider Electric MA8, MC6/7, and MP6/7 Series
explosion proof actuator enclosures are designed for
installation in a hazardous environment. Each of these
actuators are factory assembled to order. The enclosure is
a cast aluminum housing and bolted cover with explosion
proof ratings for Class I, Division 1, Groups C, D and Class II,
Division 1, Groups E, F, G. They are for use with any damper
with appropriate linkage and with Schneider Electric globe
valve sizes 1/2" through 2", two- or three-way.
FEATURES
HAZARDOUS LOCATIONS
8
• Class I, Division 1, Groups C, D; Class II, Division 1,
Groups E, F, G
• Full range of approved actuators
• Approved for valves or dampers
SPECIFICATIONS
Conduit Opening
Assembly
Materials Of
Construction
Area
Two, 3/4" NPT
Factory only
Dimensions
Actuators (Only)
Cast aluminum, bolted cover
enclosure
Explosion proof Class I, Division 1,
Groups C, D; Class II, Division 1,
Groups E, F, G
Drive Shaft
Weight
Approvals
Warranty
(not to exceed) 9"H x 8.25"W x 11"D
(22.9 x 21 x 28 cm)
1/2" dia I1.27 cm), 0.93" L (2.38 cm)
varies per model
UL (actuator only), CSA (assembly)
2 years
ORDERING INFORMATION
AM-116
AM-123
CPX9301
CPX9301456
CPX9302
PR-48
484
888-397-5353 USA
RELATED PRODUCTS
Splined crank arm for 1/2" (1.27cm) shaft (damper linkage required)
Ball joint connector (damper linkage required)
6 to 9 VDC (fixed) actuator drive kit for hazardous locations
0 to 10 VDC (fixed) actuator drive kit for hazardous locations
4 to 20 mA (fixed) actuator drive kit for hazardous locations
5/16" dia., 48" (1.2m) length push rod
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
PAGE
8
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF ACTUATOR ENCLOSURE (FOR VALVES AND DAMPERS)
MA8, MC6/7, MP6/7 SERIES
ORDERING INFORMATION
Valve Body
Actuator
Linkage
2-POSITION, FLOATING, 2-WAY VALVES, NON-SPRING RETURN
VB-7213-0-4-02
VB-7213-0-4-04
VB-7213-0-4-06
VB-7213-0-4-08
MP6-381
AV-293
VB-7213-0-4-09
VB-7213-0-4-10
VB-7213-0-4-11
Size (NPT)
1/2"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
Power
24 VAC, 52.8 VA
PROPORTIONAL 2-WAY VALVES, NON-SPRING RETURN – Requires separate CPX explosion proof actuator drive kit
VB-7213-0-4-02
1/2"
VB-7213-0-4-04
1/2"
VB-7213-0-4-06
3/4"
VB-7213-0-4-08
MP6-381
AV-293
1"
24 VAC, 52.8 VA
+CPX Drive Kit
VB-7213-0-4-09
1-1/4"
VB-7213-0-4-10
1-1/2"
VB-7213-0-4-11
2"
Flow (Cv)
Close-off (psid)
1.3
4.4
7.5
14
20
28
40
250
250
250
150
90
60
35
1.3
4.4
7.5
14
20
28
40
250
250
250
150
90
60
35
250
250
250
150
90
60
35
FLOATING 2-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
VB-7213-0-4-02
1/2"
1.3
VB-7213-0-4-04
1/2"
4.4
VB-7213-0-4-06
3/4"
7.5
VB-7213-0-4-08
MP6-361
AV-291
1"
24 VAC, 60 VA
14
VB-7213-0-4-09
1-1/4"
20
VB-7213-0-4-10
1-1/2"
28
VB-7213-0-4-11
2"
40
250
250
250
150
90
60
35
PROPORTIONAL 2-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
Requires separate CPX explosion proof actuator drive kit
VB-7213-0-4-02
1/2"
1.3
VB-7213-0-4-04
1/2"
4.4
VB-7213-0-4-06
3/4"
7.5
MP6-361
VB-7213-0-4-08
1"
14
AV-291
24 VAC, 60 VA
+ CPX Drive Kit
VB-7213-0-4-09
1-1/4"
20
VB-7213-0-4-10
1-1/2"
28
VB-7213-0-4-11
2"
40
250
250
250
150
90
60
35
2-POSITION / FLOATING 3-WAY VALVES, NON-SPRING RETURN
VB-7313-0-4-02
VB-7313-0-4-04
VB-7313-0-4-06
VB-7313-0-4-08
MP6-381
AV-293
VB-7313-0-4-09
VB-7313-0-4-10
VB-7313-0-4-11
250
250
200
150
90
60
35
March 2014
1/2"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
24 VAC, 52.8 VA
WE MAKE IT EASY.
kele.com
1.3
4.4
7.5
14
20
28
40
888-397-5353 USA
8
HAZARDOUS LOCATIONS
2-POSITION, 2-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
VB-7213-0-4-02
1/2"
1.3
VB-7213-0-4-04
1/2"
4.4
VB-7213-0-4-06
3/4"
7.5
VB-7213-0-4-08
MA8-318
AV-291
1"
24 VAC, 92 VA
14
VB-7213-0-4-09
1-1/4"
20
VB-7213-0-4-10
1-1/2"
28
VB-7213-0-4-11
2"
40
485
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF ACTUATOR ENCLOSURE (FOR VALVES AND DAMPERS)
MA8, MC6/7, MP6/7 SERIES
ORDERING INFORMATION
Valve Body
Actuator
Linkage
Size (NPT)
Power
PROPORTIONAL 3-WAY VALVES, NON-SPRING RETURN – Requires separate CPX explosion proof actuator drive kit
VB-7313-0-4-02
1/2"
VB-7313-0-4-04
1/2"
VB-7313-0-4-06
3/4"
MP6-381
AV-293
24 VAC, 52.8 VA
VB-7313-0-4-08
1"
+ CPX Drive Kit
VB-7313-0-4-09
1-1/4"
VB-7313-0-4-10
1-1/2"
VB-7313-0-4-11
2"
HAZARDOUS LOCATIONS
8
Flow (Cv)
Close-off (psid)
1.3
4.4
7.5
14
20
28
40
250
250
250
150
90
60
35
2-POSITION 3-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
VB-7313-0-4-02
1/2"
1.3
VB-7313-0-4-04
1/2"
4.4
VB-7313-0-4-06
3/4"
7.5
VB-7313-0-4-08
1"
14
MA8-318
AV-291
24 VAC, 92 VA
VB-7313-0-4-09
1-1/4"
20
VB-7313-0-4-10
1-1/2"
28
VB-7313-0-4-11
2"
40
250
250
250
150
90
60
35
FLOATING 3-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
VB-7313-0-4-02
1/2"
1.3
VB-7313-0-4-04
1/2"
4.4
VB-7313-0-4-06
3/4"
7.5
VB-7313-0-4-08
MP6-361
AV-291
1"
24 VAC, 60 VA
14
VB-7313-0-4-09
1-1/4"
20
VB-7313-0-4-10
1-1/2"
28
VB-7313-0-4-11
2"
40
250
250
250
150
90
60
35
PROPORTIONAL 3-WAY VALVES, SPRING RETURN – Can be linked spring return open or spring return closed - specify at time of order.
Requires separate CPX explosion proof actuator drive kit
VB-7313-0-4-02
1/2"
1.3
VB-7313-0-4-04
1/2"
4.4
VB-7313-0-4-06
3/4"
7.5
VB-7313-0-4-08
AV-291
1"
24 VAC, 60 VA
14
MP6-361
+ CPX Drive Kit
VB-7313-0-4-09
1-1/4"
20
VB-7313-0-4-10
1-1/2"
28
VB-7313-0-4-11
2"
40
250
250
250
150
90
60
35
DAMPER ACTUATORS
Model Number
MA8-318
MA8-318-500
MA8-418
MA8-418-500
MC6-351
MC6-421
MC6-431
MC7-4311
MP6-381
MP6-361
MP6-371
MP6-421
MP6-485
MP6-465
MP6-475
MP7-4651
MP7-4751
MP6-367
MP6-377
MP6-379
MP6-470
486
Description
Explosion proof 2-wire, 2-position, spring return CCW
Explosion proof 2-wire, 2-position, spring return CCW, end switch
Explosion proof 2-wire, 2-position, spring return CCW
Explosion proof 2-wire, 2-position, spring return CCW, end switch
Explosion proof 3 wire 2-position, non-spring return
Explosion proof 3 wire 2-position, non-spring return
Explosion proof 3 wire 2-position, non-spring return
Explosion proof 3 wire 2-position, non-spring return
Explosion proof proportional /floating, non-spring return
Explosion proof proportional /floating, spring return CW
Explosion proof proportional /floating, spring return CCW
Explosion proof proportional /floating, non-spring return
Explosion proof proportional /floating, non-spring return
Explosion proof proportional /floating, spring return CW
Explosion proof proportional /floating, spring return CCW
Explosion proof proportional /floating, spring return CW
Explosion proof proportional /floating, spring return CCW
Explosion proof sequencing, non-spring return
Explosion proof sequencing, spring return CCW
Explosion proof 5-position, spring return CCW
Explosion proof 5-position, spring return CCW
888-397-5353 USA
kele.com
Timing
(no load, seconds)
20
20
20
20
70
20
30
36
130
90
90
25
130
90
90
108
108
90
90
90
90
Power
24 VAC, 92 VA
24 VAC, 92 VA
120 VAC, 108 VA
120 VAC, 108 VA
24 VAC, 53 VA
120 VAC, 96 VA
120 VAC, 96 VA
240 VAC, 96 VA
24 VAC, 52.8 VA
24 VAC, 60 VA
24 VAC, 60 VA
120 VAC, 78 VA
120 VAC, 60 VA
120 VAC, 60 VA
120 VAC, 60 VA
240 VAC, 60 VA
240 VAC, 60 VA
24 VAC, 60 VA
24 VAC, 60 VA
24 VAC, 60 VA
120 VAC, 60 VA
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
Torque
in-lb (N-m)
60 (6.8)
60 (6.8)
60 (6.8)
60 (6.8)
220 (25)
175 (19)
220 (25)
220 (25)
220 (25)
50 (5.6)
50 (5.6)
60 (6.8)
220 (25)
50 (5.6)
90 (10)
50 (5.6)
50 (5.6)
50 (5.6)
50 (5.6)
50 (5.6)
50 (5.6)
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF DIRECT COUPLED ACTUATOR ENCLOSURE (FOR DAMPERS)
ZS-260
DESCRIPTION
The Belimo Model ZS-260 explosion proof direct coupled
actuator enclosure is designed for Belimo Models GM,
AFB, LF, and NFB direct-mount style actuators installed in a
hazardous environment. The ZS-260 Series has NEMA 7 and
NEMA 9 construction for field-mounted actuators with a drive
shaft in front or rear depending on application. The enclosure
is a cast aluminum housing with explosion proof ratings
for Class I, Division 1, Groups C, D and Class II, Division
1, Groups E, F, G. They are for use with any damper with
appropriate linkage.
FEATURES
• Class I, Division 1, Groups C, D; Class II, Division 1,
Groups E, F, G
• Full range of approved actuators
8
SPECIFICATIONS
Two, 3/4" FNPT
Cast aluminum, bolted cover
SS, 1/2" dia (1.27 cm), 1.5" L
(3.8 cm)
Area
Class I, Division 1, Groups C, D;
Class II, Division 1, Groups E, F, G
Compatible Actuators AFB, AFX, AF, NFB, NFX, GMB,
GMX, AMB, AMX (see actuator
specification for torque and control
details)
Enclosure Rating
Dimensions
Approvals
Weight
Warranty
NEMA 7CD, NEMA 9EG
16" H x 10" W x 9.5" D
(40.6 x 25.4 x 24.1 cm)
UL listed File #E171998, CSA
31 lb (14.1 kg)
1 year
HAZARDOUS LOCATIONS
Conduit Opening
Materials Of
Construction
Drive Shaft
CAUTION: Conduit seal MUST be installed within code-required distance from enclosure to maintain
explosion proof rating.
WARNING: This device is not listed for use in areas classified as Group A (acetylene) or Group B (hydrogen).
ORDERING INFORMATION
MODEL
DESCRIPTION
ZS-260
Damper actuator enclosure with front or rear drive shaft
(Order linkage and actuator separately)
KG8-K
KH8-K
PR-48
ZG-109
March 2014
RELATED PRODUCTS
Ball joint, 90° angle, use with 5/16" diameter pushrod
Crank arm for 3/4" shaft, 3-1/2" length, use with KG8-K ball joint
5/16" dia., 48" (1.2m) length push rod
10-ga galvanized right angle mounting plate, 13"H x 10"W x 6"D (25.4 x 33 x 15.2 cm)
WE MAKE IT EASY.
kele.com
PAGE
7
7
8
888-397-5353 USA
487
NEW!
HAZARDOUS LOCATIONS
EXPLOSION CONDUIT ACCESSORIES
GRT, EYM, PLG50 SERIES
CONDUIT OUTLET BOX
GRT SERIES EXPLOSION PROOF OUTLET BOX
DESCRIPTION
These explosion proof, dust-ignition proof, cast-aluminum
conduit outlet boxes are used with threaded metal conduit
and are furnished with a cover and internal ground screw.
They are suitable for Class I, Div 1 and 2, Groups B,C,D:
Class II, Div 1 and 2, Groups E,F,G; and Class III, Div 1 and 2.
In Class I, Group B atmospheres, all conduit runs must have
a sealing fitting field installed adjacent to the enclosure. The
UL File # is E10444.
ORDERING INFORMATION
MODEL
GRT50-A
GRT75-A
CONDUIT
SIZE
COVER CONSTRUCTION
OPENING
1/2"
3/4"
3.38"
3.38"
Cast Aluminum
Cast Aluminum
WEIGHT
lb (kg)
1.4 (0.6)
1.4 (0.6)
8
HAZARDOUS LOCATIONS
CONDUIT SEALING FITTING
EYM SERIES
DESCRIPTION
These explosion proof, dust-ignition proof, malleable iron
conduit sealing fittings are used with threaded metal
conduit in horizontal or vertical applications. Fittings have
female connections with one removable male nipple. They are
suitable for Class I, Div 1 and 2, Groups A,B,C,D: Class II, Div
1 and 2, Groups E,F,G; Class III, Div 1 and 2. The UL File # is
E10444
ORDERING INFORMATION
MODEL SIZE TURNING
RADIUS
EYM-50 1/2"
EYM-75 3/4"
EYM-100 1"
1.06"
1.19"
1.38"
KWIKO® CONSTRUCTION WEIGHT
CEMENT
lb (kg)
REQUIRED
1 oz
Malleable Iron
0.8 (0.4)
2 oz
Malleable Iron
1.1 (0.5)
4 oz
Malleable Iron
1.5 (0.7)
CLOSE-UP PLUGS
PLG50 SERIES
DESCRIPTION
These explosion proof, dust-ignition proof, steel closeup plugs are used with threaded metal conduit. They are
suitable for Class I, Div 1 and 2, Groups A,B,C,D; Class II, Div
1 and 2, Groups E,F.G; and Class III, Div 1 and 2.
ORDERING INFORMATION
488
MODEL
SIZE
CONSTRUCTION
PLG50R
PLG75R
PLG100R
1/2"
3/4"
1"
Steel, Recessed Head
Steel, Recessed Head
Steel, Recessed Head
888-397-5353 USA
kele.com
WEIGHT
lb (kg)
0.1 (0.05)
0.1 (0.05)
0.2 (0.1)
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
EXPLOSION PROOF CONDUIT ACCESSORIES
AC1A, ACK6F, F01, AC1F01A
KWIKO® SEALING CEMENT
MODEL AC1A
When mixed with water, according to label directions, Kwiko
Sealing Cement forms a pourable cement for conduit sealing
fittings.
ORDERING INFORMATION
MODEL
AC1A
DESCRIPTION
1 lb (0.5kg), 23 cu in
(377.0 cu cm) volume when set
KWIKO® TWINPAK SEALING CEMENT
MODEL ACK6F
Each plastic pouch in the Kwiko® Twinpak contains
premeasured Kwiko® cement and premeasured water (in an
inner bag). Squeeze the pouch to break the inner water bag,
knead the mixture thoroughly and pour. The Kwiko® Twinpak
includes an adequate amount of fiber filler packed separately.
8
HAZARDOUS LOCATIONS
ORDERING INFORMATION
MODEL
DESCRIPTION
ACK6F
Cement: 1.9 lb * (850g) Fiber:
0.3 lb (0.14kg), 25 cu in
(410 cu cm) volume when set
* Consists of five 6 oz (187g) cement pouches
Fiber Filler is used to prevent cement from leaking while it is
in the fluid state.
ORDERING INFORMATION
MODEL
F01
DESCRIPTION
Quantity: 0.06 lb (0.03kg)
KWIKO® SEALING CEMENT AND FIBER FILLER KITS
MODEL AC1F01A
The Model AC1F01A combines Model AC1A cement and
Model F01 filler in a handy kit.
ORDERING INFORMATION
MODEL
AC1F01A
March 2014
DESCRIPTION
Cement: 1 lb (0.5kg)
Fiber: 0.06 lb (0.03kg), 23 cu in
(377.0 cu cm) volume when set
WE MAKE IT EASY.
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888-397-5353 USA
489
NEW!
HAZARDOUS LOCATIONS
HAZARDOUS ATMOSPHERES
Automation dealers are continuing to gain business
that was once reserved only for specialty and industrial
contractors. It’s a trend that is accelerating very rapidly,
and the fastest growth is in the areas of hazardous locations
and the monitoring of toxic and combustible gases. Kele is
committed to providing the products and technical support
needed to assist our customers in these important areas.
By way of introduction, this article covers the basics of a
hazardous atmosphere and the equipment used to monitor
combustible gases. See additional articles in Technical
Reference for information relating to principles and
application of intrinsically safe systems, explosion proof
systems, and other available means of dealing with electrical
equipment in hazardous atmospheres.
HAZARDOUS LOCATIONS
8
flammability limits (LFL, UFL). Limits for some common
fuels are shown in Table 1 below. If a system is designed
to keep the fuel concentration below the LEL, the fuel leg
is effectively removed from the fire triangle. Under certain
conditions (in an oil field, for example), it is easier to maintain
the concentration above the UEL. In this case, the oxygen
leg is eliminated. In either case, combustion cannot happen.
What Is “Hazardous?”
The widely known Fire Triangle illustration (Figure 1) shows
the three components required to support combustion.
All three must be present, and the methods we use to
prevent explosions are designed to eliminate one of the
three legs of the triangle. What the triangle doesn’t show,
though, is that fuel and oxygen must be mixed in the proper
proportion in order to burn. If the fuel is methane (CH 4),
the major component of natural gas, the concentration in
air must be between 5% and 15% or else the mixture will
not ignite. Those of us old enough to have worked with
finicky carburetors on gasoline engines are familiar with this
principle. If the mixture was too lean (not enough fuel) or too
rich (too much fuel), the engine would not start. The same
applies to ignition of any combustible gas in air.
Silent Sentries
It is often advisable to monitor the concentration
of fuel in air in order to take action or sound an
alarm if it is moving toward an explosive level. The
GDS Series combustible gas monitors a r e i d e a l
for this purpose. The GDS-WCH4 provides a
4-20 mA signal over the range of 0% to 100% of the
LEL, and it has an alarm relay set to energize at 25% of
the LEL (an industry standard alarm point). The sensor
responds to a very wide range of combustible gases,
and the outputs (analog and relay) are factorycalibrated for the gas specified at the time of order.
For example, if the gas is methane (5% LEL), the
GDS-WCH4 will output 4 mA at 0% methane and 20 mA
at 5% methane. The alarm relay will energize at 1.25%
methane. With this device, the alarm relay or an automation
system responding to the analog signal can cause electricity
(source of ignition) to be shut off in an area if the gas
concentration is rising toward the explosive level (LEL). If
the sensor itself must remain energized, an explosion proof
enclosure is available (use SPXCD Series) to prevent it from
becoming the source of ignition itself.
Get the Mixture Right
The lowest concentration of a gas in air that will ignite is its
lower explosive limit (LEL), and the highest concentration
that will ignite is its upper explosive limit (UEL). These values
are also sometimes referred to as the lower and upper
The system described here is based on removing the fuel
leg from the fire triangle, then having an automatic means of
removing the ignition source leg if the fuel begins to return.
This is the first of many ways we will discuss to work safely
with electricity in hazardous locations.
FIGURE 1. FIRE TRIANGLE
rce
ou
el
Fu
nS
itio
Ign
FIRE
Oxygen
490
888-397-5353 USA
Lower Explosive Limit (LEL) Upper Explosive Limit (UEL)
(Percent by volume in air)
(Percent by volume in air)
Methane
5 .0
15 .0
Butane
8 .4
1 .6
Propane
9 .6
2 .1
Ethanol
3 .3
19 .0
7 .8
Gasoline (100 Octane)
1 .4
Isopropyl alcohol
12 .7
2 .0
Ethyl ether
1 .9
36 .0
Xylene
0 .9
7 .0
Toluene
7 .1
1 .0
Hydrogen
4 .0
75 .0
85 .0
Acetylene
2 .5
Fuel
Note: Multiply percentages by 10,000 to convert to parts per million (ppm)
kele.com
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
March 2014
NEW!
HAZARDOUS LOCATIONS
Recap
In hazardous locations there are three elements that must be
present in order to produce an explosion (see the Hazardous
Atmospheres article in Technical Reference for more information). The three legs of the fire triangle (fuel, oxygen, and
an ignition source) are required to support combustion. In
addition, the volume ratio of fuel to air must be within the
fuel’s explosive limits, and the ignition source must release
sufficient energy to ignite the mixture. Removing any of these
three elements will eliminate the explosion hazard.
Explosion proof Defined
Perhaps the most common and familiar way to eliminate ignition sources from a hazardous location is through the use of
explosion proof construction. An enclosure that is rated explosion proof (NEMA 7, 8, 9, or 10) for a particular hazard group
(see Figure 1) is strong enough to withstand the pressure of a
worst-case explosion inside itself. Additionally, it is designed
to vent the resulting hot gases in such a way that they are
cooled below the ignition temperature of a worst-case explosive mixture outside the box.
FIGURE 1. FLANGED AND THREADED OPENINGS
Conduit Seal
Ground Flange
Joint provides long,
narrow path to cool
escaping gases
Sealing Compound
TABLE 1. CLASS, DIVISION, AND GROUP
NEMA Classifications - Marked with Rated Class, Division, and Group
NEMA 7
NEMA 8
NEMA 9
NEMA 10
Class 1 (Gases) Indoor Hazardous Locations, Air-Break
Class 1 (Gases) Indoor/Outdoor Hazardous Locations, Oil-Immersed
Class 2 (Dusts) Indoor Hazardous Locations
Meets U .S . Bureau of Mines Safety Requirements
Summary of NEC Classes and Group Examples
Group
A
B
C
D
E
F
Class 1 (Gases)
Class 2 (Dusts)
Acetylene
Hydrogen, Ethylene Oxide, Propylene Oxide
Ether, Hydrogen Sulfide, Hydrazine, Nitroethane
Methane, Acetone, Benzene, Gasoline, Naphtha
Metallic Dusts (all metals)
Carbonaceous Dusts
(coal, asphalt, etc .)
Nonconductive Dusts
(grain, drugs, pesticides,
plastics, dyes, etc . .)
G
Summary of NEC Divisions
Division 1 Hazard always or frequently present, or may be present during normal operation,
or high probability of hazard existing at the same time as electrical malfunction
Division 2 Hazard normally not present, or highly unlikely to be present at the same time
as electrical malfunction, or area adjacent to Division 1
With flanged enclosures, it is very important to torque the
cover bolts evenly and as close as possible to the recommended value. Also, the flange surfaces must not be
scratched or marred in any way. Improper torque or damaged
surfaces can allow hot gases to escape and ignite an explosive mixture outside the enclosure. Threaded connections or
covers must engage at least five full threads to maintain the
integrity of the system.
Fibrous Packing
Hot gases cooled by
long expansion path
through threads
Cable Seal
Required
Explosion
Inside Box
How It Works
To contain the pressures of an explosion, these enclosures
are made from heavy cast steel or cast aluminum. To cool
escaping gases, flanged enclosures have extra-wide flanges
that are ground to a smooth finish and tight tolerance, thus
yielding a very thin, long path to the outside as shown in
Figure 1. Enclosures with threaded covers (and threaded
connections to either type of enclosure) produce the same
effect by virtue of the long, narrow path through the threads.
As the hot gases from an internal explosion pass through
these long, narrow channels, they give up heat to the metal
and their pressure is reduced. These two effects team up to
lower the temperature of the gases to a safe level before they
can come in contact with the atmosphere surrounding the
enclosure.
March 2014
One additional step is needed to control the spread of hot
gases. Conduits entering the enclosure must be sealed within
the code-required distance (usually 18”) of the box to prevent
the buildup of pressure within the raceway system or the
leakage of combustion products into the room. If a jacketed
cable passes through a conduit seal, the jacket should be
removed within the seal so that the sealing compound can
completely surround each insulated conductor. An alternative
is to seal the cable at the end of the jacket as shown in the
illustration.
8
HAZARDOUS LOCATIONS
Jacketed
Cable
EXPLOSION PROOF CONTROLS
Classification
So where can these types of enclosures be used? As usual
in our industry, there are no easy answers! Each explosion
proof enclosure will be listed or labeled for use in a particular
environment as defined in the National Electrical Code (NEC)
or IEC Standards. In turn, the hazardous area itself must be
classified according to the same standards. The enclosure
must have a listing that meets or exceeds the classification of
the area in which it is to be used. In the NEC, considerations
are Class, Division, and Group as shown in Table 1. IEC
standards use different code letters from the NEC but generally follow the same logic.
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EXPLOSION PROOF CONTROLS
For gases, which comprise the majority of our industry’s
hazards, explosion proof enclosures are readily available
for Class 1, Division 1, Groups C and D. Enclosures rated
for Group B (hydrogen) can also be found but generally only
in small sizes since hydrogen is so easily ignitable and has
high explosive energy. Almost nothing is offered for Group A
(acetylene) environments because of acetylene’s easy ignition and tremendous explosive energy.
Using explosion proof enclosures removes the ignition leg
from the fire triangle in a potentially hazardous location.
Although it is costly and requires care to maintain the system’s integrity, it is an effective method for working with
electricity in combustible atmospheres. The Intrinsically Safe
Controls article in the Technical Reference section outlines
an alternative method of applying controls to hazardous locations.
HZLIM
Temperature Controller
HAZARDOUS LOCATIONS
8
1950G
Differential Pressure Switch
30-3003D
Smoke Detector
EPET
Thermostat
AXJ, XJAT
Control Enclosures
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HAZARDOUS LOCATIONS
INTRINSICALLY SAFE CONTROLS
One answer for applying controls in hazardous locations
is the use of explosion proof construction to prevent a
source of ignition from coming in contact with a room full
of fuel and air. Strong enclosures with threaded or flanged
covers can confine explosive forces within themselves
and cool the escaping gases enough to prevent ignition of
the surrounding atmosphere. Wouldn’t it be even better to
prevent any explosion at all?
Ignition of Energy (mJ)
FIGURE 1. EFFECT OF CONCENTRATION ON IGNITION
ENERGY
Propane - Air, 1 ATM
1 .0
0 .1
Hydrogen - Air, 1ATM
0 .01
0
10
20
30
40
50
60
70
80
90
100
What IS Means
Intrinsically safe systems are designed to be just that.
Remember that even if the ideally explosive mixture of fuel
and air exists, an ignition source of sufficient energy and
duration is required to light it up. Intrinsically safe design limits
the available release of energy in the hazardous area to a
level well below the minimum ignition energy of the worstcase gas mixture. It also maintains this limiting function in the
event of two simultaneous worst-case faults. Since this type
of protection is very failsafe and requires no enclosure maintenance, most engineers (and property insurance carriers)
consider it to be even safer than explosion proof construction.
Surprisingly, it is usually less expensive to boot!
How does it work? First of all, let’s consider a room filled with
Barriers
So, if we have an RTD and an intrinsically safe temperature
transmitter in a hazardous location, can we wire them up to
our controller and power supply in the safe area and turn
them on? Not yet! Three more steps are needed first. While
the devices in the hazardous area cannot ignite the gas mixture on their own, the controller and power supply in the safe
area may each be capable of transmitting enough energy
through the wires into the hazardous area to do the job anyway! An intrinsic safety barrier will prevent this and is required
for every intrinsically safe device, except listed self-contained
battery-powered units. Barriers range from simple to sophisticated, but they all use failsafe components to limit the voltage and current that can be passed through them even in
the event of worst-case wiring errors. For example, suppose
8
HAZARDOUS LOCATIONS
Volume Concentration (%)
hydrogen and air in exactly the best proportion for ignition,
about 30% hydrogen by volume (see Figure 1). This mixture
takes an instantaneous release of about 20 mJ in order to
start burning, or else its temperature must be raised above
the autoignition temperature of hydrogen (932°F/500°C). For
electrical devices we wish to place in this room, the amount
of stored energy and the rate at which it can be released
under worst-case conditions must be kept below these critical
levels, and the surface temperature (see Table 2 for ratings)
must be kept below the autoignition temperature. If these conditions are met to the satisfaction of UL, FM, CSA, BASEEFA,
etc., then the device may be listed and labeled as intrinsically safe. This means that with a properly applied safety barrier, cabling, and ground, the device cannot start a fire even
under the worst-case conditions. There is one subset of such
intrinsically safe devices that can be used without a listing or
label, although a barrier, proper cabling, and ground are still
required. These are designated “simple apparatus” and are a
group of things that obviously neither produce nor store any
energy, such as RTDs, thermistors, switches, and a few others. They may be used as if they do have a label, as long as
the operating limitations shown in Table 1 are strictly adhered
to.
FIGURE 2. SIMPLE ZENER DIODE BARRIER
220Ω
50 mA Fuse
Safe
Area
30V
Zener
Diode
120Ω
28V
Zener
Diode
Hazardous
Area
Fused Zener Barrier
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INTRINSICALLY SAFE CONTROLS
someone in the safe area accidentally hooks 240 VAC up to
our temperature transmitter signal lines, and one of the lines
is frayed enough at the transmitter to cause an arc at that
voltage. Without an intrinsic safety barrier, there may not be
enough evidence left to figure out what happened. However,
a barrier rated for the atmosphere, cabling, and its field
device will save the day even under these circumstances.
Figure 2 illustrates a simple zener diode barrier circuit. A high
voltage at the safe- side terminals will cause the zener diode
to draw a high current and blow the input fuse. The series
resistors limit the current to the hazardous side. Barriers are
also rated for how much capacitance and inductance are
allowed on the hazardous side.
TABLE 1. OPERATING LIMITS FOR A SIMPLE
APPARATUS (RTDs, THERMISTORS,
SWITCHES, ETC.)
HAZARDOUS LOCATIONS
8
Applied Voltage
Current Through
Power Dissipation
Stored Energy
1.2 VAC or VDC
100 mA
25 mW
20 µJ
Temperature class: Simple apparatus with surface area
between 20 mm2 and 10 cm2 are classified as T4 275°F
(135°C) when the matched output power of the barrier
is less than 1.3W into a 104°F (40°C) ambient. Switches
and other contacts that dissipate no power may be classified T6 185°F (85°C).
Cable Requirements
This leads us into the cabling between the hazardous area
device and its barrier. If the cable is very long and has a high
capacitance, it could possibly store enough energy to cause
an ignition in the event of a wiring fault. It must be checked
against the rating of the barrier. If the field device, the transmitter in our example, has a high capacitance, the combined
capacitance of the cable and device must be less than the
barrier rating. Cable and device inductance are treated in the
same manner.
IS Grounding
The final factor to consider is grounding. What good is all this
built-in electronic safety if a nearby lightning strike raises the
ground potential a couple of thousand volts above the potential of the cable shield in our hazardous area? The resulting
arc from the shield to ground can be every bit as effective as
a butane lighter in touching off an explosion, so we needn’t
have bothered with using intrinsically safe products. An
intrinsic safety ground, bonded to the earth ground, is the last
essential link that makes the system work. Normally provided
at the barrier location, it keeps the cable shields at or near the
same potential as the earth, even as that value moves around
during storms.
FIGURE 3. SPECIAL INTRINSIC SAFETY GROUNDING
Hazardous Area
Safe Area
Intrinsically
Safe Temperature
Transmitter
Shield
TABLE 2. INTRINSIC SAFETY TEMPERATURE
CLASSIFICATION
T1
T2
T3
T4
T5
T6
842°F (450°C)
572°F (300°C)
392°F (200°C)
275°F (135°C)
212°F (100°C)
185°F (85°C)
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4-20 mA
Loop to
Controller
Shield
RTD
(Simple Apparatus)
Seal to Prevent
Passage of
Hazardous Gases
Remember, simply using a barrier does not make the
circuit intrinsically safe. An intrinsically safe device must
be used with the intrinsically safe barrier.
494
Intrinsic
Safety
Barrier
Intrinsic
Safety
Ground
Once it is all together, as shown in Figure 3, the benefits of
an intrinsically safe system are many. There is no need to
power systems down and “safe” the atmosphere for maintenance. Calibrate, adjust, even swap out bad parts with the
system turned on and the atmosphere at its worst. A properly
designed system cannot release enough energy to do any
damage.
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NEW!
HAZARDOUS LOCATIONS
SELECTING INTRINSIC SAFETY BARRIERS
Here is a closer look at assembling the right combination
of parts to produce a properly-coordinated intrinsically safe
(IS) system.
Hazardous Area Equipment
Selection of an IS device or simple apparatus to be used
in a hazardous area is fairly easy. For explosion protection,
ensure that the device rating is equal to or better than the
classification of the hazardous area (Class, Division, Group,
and Temperature Classification under the NEC or Category,
Zone, Group, and Temperature Classification under the
IEC). Then, as with any device, also make sure that its
construction is suitable for any corrosive or other adverse
environmental conditions that may be present.
Barrier Parameters
Each intrinsic safety barrier is listed with the maximum
voltage (Voc) and current (Isc) that can be passed through
to the hazardous side terminals under fault conditions, and
the maximum capacitance (Ca) and inductance (La) that can
be connected safely to the hazardous side terminals. Finally,
the cable capacitance (Ccable) and inductance (Lcable) can
usually be gleaned from the cable manufacturer’s literature
or technical support line. Or, if the exact cable parameters
cannot be located, the default values recommended in
ANSI/ISA-RP12.6 can be used (Ccable = 60 pF/ft or 197 pF/m
and Lcable = 0.20 µH/ft or 0.67 µH/m).
Matching Them Up
For simple loops (i. e., two-wire IS devices that can function
with one wire grounded), matching up a barrier with
an IS device is as simple as making sure the following
relationships are true:
Vmax
must be greater than or equal to
Imax
must be greater than or equal to
Ci + Ccable must be less than or equal to
Li + Lcable must be less than or equal to
March 2014
Voc
Isc
Ca
La
Example
Consider a need to monitor a ventilator’s vibration level in a
battery room. The project electrical engineer has classified
the area as Class 1, Division 1, Group B, and the hazardous
material in question is hydrogen. Special corrosion
protection is not required, and the cable run from the
transmitter to its barrier will be about 200’ (61m). Hydrogen’s
autoignition temperature is 968°F (520°C), so the vibration
transmitter need only have a temperature classification of
T1 (842°F or 450°C) or lower. The Model 140T is a good
choice. It is rated IS for Class 1, Division 1, Groups A, B,
C, and D, and its temperature classification is T6 (less
than 185°F or 85°C). Its entity parameters are shown in
Figure 2. The Model MTL7706+ barrier was chosen since
it is designed for loop-powered 4-20 mA devices, and its
Voc and Isc parameters are less than or equal to the Vmax
and Imax parameters of the 140T. In addition, its Ca and La
ratings leave plenty of allowable cable capacitance and
inductance for the length of our run. Refer to Figure 1 on
the following page for the cable calculations related to our
example.
8
HAZARDOUS LOCATIONS
Safety Parameters
Selecting an appropriate intrinsic safety barrier is often even
simpler, since a conscientious supplier of IS solutions, such
as Kele, will usually include a barrier recommendation and
wiring diagram with the product in question. In the absence
of such a recommendation, it is not an insurmountable chore
to select an appropriate barrier under the Entity Concept
described in ISA Technical Report TR-12.2-1995. Under this
concept, the IS device to be applied in a hazardous location
is labeled by its manufacturer with the maximum voltage
(Vmax) and current (Imax) that can be applied to it without
degrading its level of safety. The IS device is also labeled
with the amount of internal capacitance (Ci) and inductance
(Li) that it adds to the circuit.
Note that this is for a simple system like the one described
and that each ungrounded conductor in the hazardous area
requires either a separate barrier or a multichannel barrier
designed for its purpose. More complex systems need more
complex analysis to make sure that no more than Vmax can
be developed between any two conductors and that no
more than Imax can be driven through any terminal in the
IS device. Usually, the manufacturer or supplier of an IS
device requiring more than one ungrounded conductor can
provide a barrier recommendation that meets these criteria.
Fortunately, most applications in the building automation
industry can be handled with a simple loop. If grounding
one side of a current loop is a problem, a signal isolator
such as the Model DT-13E can be applied in the safe area
as a solution.
The shorter of these two results is the limiting distance,
so our cable run from the MTL7706+ barrier to the 140T
vibration transmitter must not exceed 717’ (218m). The
estimated 200’ (61m) run in our example is well within
this limit. All that remains is to ensure proper grounding
and installation according to NEC Article 504. As with all
such systems, an IS drawing that shows all relevant entity
parameters must accompany the installation (see Figure 2).
With a little care and a little math, selection of IS barriers
for simple loops can be straightforward. It’s even easier
when the selection is already made for you — look for
the Hazardous Locations section in the Kele Catalog for
engineered intrinsically safe solutions to your automation
interface needs!
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FIGURE 1. CABLE LIMIT CALCULATION
These calculations assume default values of 60 pF and 0.20 µH per foot of cable
(197 pF and 0.67 µH per meter). Lower values are available and may be obtained from
cable manufacturers.
Capacitive cable length limit = (Ca – Ci) / (Cable capacitance per unit length)
= (0.083 µF – 0.04 µF) / (60 pf/ft or 197 pf/m)
= 717’ (218m)
Inductive cable length limit
=
=
=
(La – Li) / (Cable inductance per foot)
(4.2 mH – 0.0 mH) / (0.20 µH/ft or 0.67 µH/m)
21,000’ (6400m)
FIGURE 2. INTRINSIC SAFETY CONTROL DRAWING
8
Power Supply
Non-Hazardous Location
HAZARDOUS LOCATIONS
Hazardous (Classified) Location
Class 1, Division 1, Group B
140T Vibration Transmitter
Entity Parameters
Vmax
28V
I max
110 mA
Ci
0.04 μF
Li
0 mH
+
–
4-20 mA
+
24-35
VDC
4
MTL7706+ Intrinsic Safety Barrier
5
Entity (Safety) Parameters
Voc
28V
I sc
93 mA
Ca
0.083 μF
La
4.2 mH 4
2
–
1
1
2
+
3
–
4-20 mA
Signal
I.S. Ground 3
Notes:
1 The MTL7706 must not be connected to any device that uses or generates in excess of 250V rms or DC
unless it has been determined that the voltage has been adequately isolated from the barrier.
2 The installation must be in accordance with the National Electrical Code®, NFPA 70, Article 504, and
ANSI/ISA-RP12.6.
3 The MTL7706+ must be connected to a suitable ground electrode per NFPA 70, Article 504. The resistance of
the ground path must be less than 1Ω.
4 Total interconnecting cable capacitance must be limited to 0.043 µF and inductance limited to 4.2 mH.
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