Relays for use in
hazardous locations
Class I, Division 2 and ATEX
Explosion protection in North America
Hazardous (classified) locations, as defined in the National
Electric Code (NEC), are locations where fire or explosion
hazards may exist due to the presence of flammable gases,
vapors, flammable liquids, combustible dusts, ignitable fibers
or flying matter. Article 500 of the NEC divides all hazardous
(classified) locations into Classes, Divisions and Groups.
Phoenix Contact’s hazardous-location relays have been tested
and approved for: Class I, Division 2; Groups A, B, C, D; and
Class I, Zone 2
•Class I: Areas in which flammable gases or vapors are or
may be present in the air in quantities sufficient to produce
explosive or ignitable mixtures
•Division 2: Environments that are not normally hazardous
• Groups A, B, C, D: Gas mixtures have been grouped on
the basis of their characteristics:
- Group A – Atmospheres containing acetylene
- Group B – Atmospheres containing acrolein, butadiene,
ethylene oxide, propylene oxide, hydrogen and fuel
and combustible process gases containing more than
30 percent hydrogen by volume
- Group C – Atmospheres containing ethyl ether
and ethylene
- Group D – Atmospheres containing acetone, ammonia,
benzene, butane, cyclopropane, ethanol, gasoline, hexane,
methane, methanol, naphtha and propane
• Class I, Zone 2
- Non-sparking – Equipment has no normally arcing parts
or thermal effects capable of ignition
- Sparking with protected contacts – Arcing contacts
are in non-incendive circuits, or are inside a hermetically
sealed container or sealed device
PHOENIX CONTACT
Explosion protection in Europe
The countries that make up the European economic area
adopt directives as their national laws. The ATEX directive
is the law of every country in the European community, and
part of that law states that all products for use in explosive
atmospheres must meet the directive.
This means that all manufacturers of mechanical and
electrical equipment intended for use in potentially explosive
atmospheres that wish to place these products on the
market within the European Union need to comply with the
ATEX directive.
Phoenix Contact’s ATEX relays are dual rated for
Class I, Division 2 and for ATEX. ATEX-approved parts are
classified into Device Groups and Categories. Our ATEX relays
are approved for Device Group II and Category 3G, for use in
Zone 2 (gases).
• II
(Device Group II) – Areas with an explosive
atmosphere, like chemical industries, mills (combustible
gases and dusts)
• 3
(Category 3) – Equipment that is intended for use in
areas where an explosive atmosphere is unlikely to occur
in normal operation and where operators must ensure a
normal level of protection
• G – Gas, suitable for atmospheres containing gas
• Ex – Explosion-proof electrical equipment
• II (Device Group) – Surface installations
• C (Gas Group) – Hydrogen
Hazardous location relays
The industry has imposed stringent
requirements on the reliability and safety of
switching components in potentially explosive
areas. In order to protect against explosion,
all equipment that could be exposed to the
flammable or combustible atmospheres in
hazardous (classified) locations must be of a
type suitable for installation in these areas.
The classes and groups for which equipment
has been certified are shown in the individual
certifications under the respective categories
and are marked on the equipment itself.
Phoenix Contact’s hazardous-location relays –
our slim PLC Relay series – have the required
approvals for process control equipment. Our
Class I, Division 2 (CID2) relays are UL/cUL
listed for use in the Americas. Also available
are dual-rated ATEX relays: rated for both
CID2 and ATEX approvals. Therefore, these
relays are certified through UL/DEMKO and
comply with the ATEX directive required for
the European market.
PHOENIX CONTACT
ATEX relays
D W
H
D W
H
2 PDT with power contact
1 PDT with power contact
Notes:
21
Type of housing:
Polyamide PA non-reinforced, color: green.
24
Separating plate PLC-ATP must be installed for voltages larger
than 250 V (L1, L2, L3) between identical terminal blocks in
adjacent modules. Potential bridging is then carried out with
FBST 8-PLC... or FBST 500....
A2
11
A1
14
22
A2
11
A1
14
12
Technical data
②
②
③
Input data
Switching level (with reference to UN) 12
Technical data
1 signal (“H”)
0 signal (“L”)
Typ. input current at UN [mA]
18
9
3.5
Typ. response time/switch-on time at UN [ms]
8
5
6
Typ. release time/switch-off time at UN [ms]
10
8
15
Transmission frequency flimit [Hz]
Input circuit DC
Yellow LED, protection against polarity reversal,
Yellow LED, protection against polarity reversal,
surge protection
free-wheeling diode
Yellow LED, bridge rectifier
Input circuit AC/DC
Output data
Contact material
AgNi
AgSnO
Max. switching voltage
250 V AC/DC
250 V AC/DC
Min. switching voltage
5 V AC/DC (at 10 mA)
5 V (at 100 mA)
Limiting continuous current
6A
6A
Max. inrush current
15 A (300 ms)
on request
Min. switching current
10 mA (at 5 V)
10 mA (at 12 V)
Test voltage input/output
4 kV (50 Hz, 1 min.)
4 kV AC (50 Hz, 1 min.)
Ambient temperature (operation)
-40°C to +70°C
-40°C to +60°C
Mechanical service life
3 x 107 cycles
2 x 107 cycles
Standards/regulations
IEC 60664, EN 50178, IEC 62103, EN 60079-0, EN 60079-15
IEC 60664, EN 50178, IEC 62103, EN 60079-0, EN 60079-15
Pollution degree/surge voltage category
2/III
3/III
Connection data solid/stranded/AWG
0.14 to 2.5 mm²/0.14 to 2.5 mm²/26 to 14
0.14 to 2.5 mm²/0.14 to 2.5 mm²/26 to 14
14 mm/80 mm/94 mm
6.2 mm/80 mm/94 mm
Conformance
CE-compliant
CE-compliant
ATEX
DEMKO 03 ATEX 0326050U; II 3G Ex nA nC IIC Gc
DEMKO 11 ATEX 1111531U; II 3G Ex nA nC IIC Gc
UL, USA
Class I, Zone 2, AEx nA nC IIC T6
Class I, Zone 2, AEx nA nC IIC T6
UL, USA / Canada
Class I, Division 2, Groups A, B, C, D
Class I, Division 2, Groups A, B, C, D
UL, Canada
Class I, Zone 2, Ex nA nC IIC Gc T6 X
Class I, Zone 2, Ex nA nC IIC Gc T6 X
Output protection
Voltage drop at max. limiting continuous current
General data
Dimensions W/H/D
EMC note
Conformance/approvals
Ordering data
Description
Input voltage
UN
PLC INTERFACE, with screw connection
①
12 V DC
②
24 V DC
③
120 V AC (110 V DC)
④
230 V AC
PLC INTERFACE, with spring-cage connection
①
②
③
12 V DC
24 V DC
120 V AC (110 V DC)
Ordering data
Type
Order
number
Replacement
relay order
number
Type
Order
number
Replacement
relay order
number
PLC-RSC-24DC/21-21ATEX
2980461
2906213
PLC-RSC-24DC/21 ATEX
PLC-RSC-120UC/21 ATEX
2902955
2902956
2961105
2961118
Class I, Division 2 (CID2) relays
D W
H
D W
H
1 PDT with power contact
D W
H
Max. DC voltage output of 3 A
Max. DC voltage output of 100 mA
A2
11
A2
13+
A2
13+
A1
14
A1
14
A1
14
12
Technical data
①
②
Technical data
③
④
Technical data
②
③
②
③
≥ 0.8
≥ 0.8
≥ 0.8
≥ 0.9
≤ 0.4
≤ 0.3
≤ 0.4
≤ 0.3
15.3
9
3.5
3.2
8.5
3.5
8.5
3.5
5
5
6
7
0.02
3.5
0.02
3
8
8
15
15
0.3
7
0.3
4
300
10
300
10
Yellow LED, protection against polarity reversal,
Yellow LED, protection against polarity reversal,
free-wheeling diode
free-wheeling diode
Yellow LED, bridge rectifier
Yellow LED, bridge rectifier
250 V AC/DC
33 V DC
48 V DC
12 V AC/DC
3 V DC
3 V DC
6A
3A
100 mA
Yellow LED, protection against polarity reversal,
Yellow LED, bridge rectifier
AgSnO
15 mA (10 ms)
10 mA
Protection against polarity reversal, surge protection
Protection against polarity reversal, surge protection
≤ 200 mV
≤1V
4 kV AC (50 Hz, 1 min.)
2.5 kV (50 Hz, 1 min.)
2.5 kV (50 Hz, 1 min.)
-20°C to +60°C
-20°C to +60°C
-20°C to +60°C
2 x 107 cycles
-
-
IEC 60664, EN 50178, IEC 62103
IEC 60664, EN 50178, IEC 62103
IEC 60664, EN 50178, IEC 62103
3/III
2/III
2/III
0.14 to 2.5 mm²/0.14 to 2.5 mm²/26 to 14
0.14 to 2.5 mm²/0.14 to 2.5 mm²/26 to 14
0.14 to 2.5 mm²/0.14 to 2.5 mm²/26 to 14
6.2 mm/80 mm/94 mm
6.2 mm/80 mm/94 mm
6.2 mm/80 mm/94 mm
Class A product
Class A product
Class A product
CE-compliant
CE-compliant
CE-compliant
-
-
-
Class I, Zone 2, AEx nA nC IIC T6
Class I, Zone 2, AEx nA nC IIC T6
Class I, Zone 2, AEx nA nC IIC T6
Class I, Division 2, Groups A, B, C, D
Class I, Division 2, Groups A, B, C, D
Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, Ex nA nC IIC Gc T6 X
Class I, Zone 2, Ex nA nC IIC Gc T6 X
Class I, Zone 2, Ex nA nC IIC Gc T6 X
Ordering data
Ordering data
Type
Order
number
Replacement
relay order
number
PLC-RSC-12DC/21/C1D2
PLC-RSC-24DC/21/C1D2
PLC-RSC-120UC/21/C1D2
PLC-RSC-230UC/21/C1D2
5606331
5603154
5603157
5607072
2961150
2961105
2961118
2961118
PLC-RSP-12DC/21/C1D2
PLC-RSP-24DC/21/C1D2
PLC-RSP-120UC/21/C1D2
5606332
5603684
5603683
2961150
2961105
2961118
Ordering data
Type
Order
number
Replacement
relay order
number
Type
Order
number
Replacement
relay order
number
PLC-OSC-24DC/ 24DC/ 2/C1D2
PLC-OSC-120UC/ 24DC/ 2/C1D2
5603260
5603262
2966595
2966605
PLC-OSC-24DC/ 48DC/100/C1D2
PLC-OSC-120UC/ 48DC/100/C1D2
5603261
5603263
2966618
2966621
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• Cables and connectors
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motor controls
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USA
PHOENIX CONTACT
P.O. Box 4100
Harrisburg, PA 17111-0100
Phone:800-888-7388
717-944-1300
Technical Service: 800-322-3225
Fax:717-944-1625
E-mail:info@phoenixcon.com
Website:www.phoenixcontact.com
• I/O systems
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Canada
PHOENIX CONTACT Ltd.
8240 Parkhill Drive
Milton, Ontario L9T 5V7
Toll Free: 800-890-2820
Phone: 905-864-8700
Fax: 905-864-7900
E-mail: cdinfo@phoenixcontact.ca
L003468A:07.15
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