Bulletin 817
Thermistor Protection Relay
6
Bulletin 817
• Accurate Temperature
Monitoring for Critical
Applications
• Automatic, Manual and
Remote Reset
• Status Indicating LEDs
• DIN Rail or Panel
Mounting
• Guarded Terminals IP20
• 1 N.O. and 1 N.C. Output
Contacts as Standard
• No Set-Up or
Adjustments Required
for Installation
TABLE OF CONTENTS
Description
Page
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Description
Page
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
Approximate Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Description
Bulletin 817 Thermistor Protection relays, utilized in conjunction with PTC thermistor
sensors, provide accurate temperature monitoring in critical applications and severe
environments such as widely varying temperatures and impeded ventilation and
cooling.
Conformity to Standards:
Approvals:
IEC 255-8, IEC 292-1
SEV
IEC 255-4, IEC 69
NEMKO
SEV, SEN 36 1503
PTB
CSA C22.2 No. 14
FI
Your order must include:
UL 508
CSA Certified
• Cat. No. of the relay selected with
Voltage Suffix Code.
UL Recognized
6-14
Bulletin 817
Thermistor Protection Relay
Product Overview
Model
Cat. No. 817-A⊗
Cat. No. 817-M⊗
Cat. No. 817-U⊗
Overtemperature protection
Short-circuit and open-circuit protection
for sensor measuring circuit
Trip indication (red LED)
Automatic reset
Manual reset
Remote reset (external button)
Storage of status in event of power failure
for more than 3 hours at +25°C (77°F)
unlimited (not temperature-dependent)
“Test” button
Power-on indication (green LED)
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★ = Standard feature
⊗ = Cat. No. is incomplete. Refer to Product Selection below.
Product Selection
Cat. No. 817-A⊗
Cat. No. 817-M⊗
Cat. No. 817-U⊗
Description
❋
Cat. No.
Thermistor Protection relay
817-A⊗
Thermistor Protection relay plus manual/remote reset
817-M⊗
Thermistor Protection Relay plus manual/remote reset test function and
power indication LED
817-U⊗
⊗ Voltage Suffix Code
Cat. No. as listed is incomplete. Select a Voltage Suffix Code from the table below to complete the Cat. No. Example: Cat. No. 817-A⊗ for 24V,
50 Hz becomes Cat. No. 817-AKD.
Voltage
24V
48V
110V
220V
240V
380V
415V
440V
50 Hz
60 Hz
DC
KD
KD
Z24
KH
KH
Z48
D
D
–
A
A
–
AJ
AJ
–
KK
KK
–
I
I
–
GB
GB
–
Specifications – Page 6-16
Approximate Dimensions – Page 6-18
❋ Prices – Consult Sales Office or price list
6-15
Bulletin 817
Thermistor Protection Relay
Specifications
Electrical
Rated Voltage
Test Voltage
Between separated circuits
Acc. to IEC 255-8
440V
Acc. to SEV
380V
Alternating current acc. to IEC 292-1
Surge voltage acc. to IEC 255-4 and SEN 36 1503
Interference voltage acc. to ANSI ➋ C 37.90 a1974, IEC 255-6 and SEN 36 1503
AC
Rated supply voltage Us
AC
Permissible Fluctuations
Power consumption
Output Relay Contact Data
Contacts (electrically isolated)
Operating voltage ➌
[V]
24
48
Continuous thermal current
[A]
4
4
Rated operational current with AC
AC-11
[A]
4
4
Rated operational current with DC
DC-11
without protection circuit, L/R = 35 ms
[A]
0.6
0.3
with protection circuit ➍, L/R = 100 ms
[A]
0.6
0.6
Max. perm. make/break current
[A]
44
44
Rated current of back-up fuse:
Max. fast-acting 16A; slow-blow 10A
Mechanical
Vibration Resistance
According to IEC 68 (10 – 150 Hz)
mm2
AWG
m
Maximum length ➎
(ft)
Cat. No. 817-A⊗
Reset
Cat. No. 817-M⊗
Cat. No. 817-U⊗
Measuring Line
Minimum cross-section
Remote Reset with
Cat. No. 817-M⊗, 817-U⊗
➊
➋
➌
➍
➎
➏
6-16
24, 48V
0.8…1.1 Us 50/60 Hz
DC
0.9…1.2 Us
AC
2.5VA (2.2W) DC 2.2W
1 make and 1 break
220
240
380
4
4
4
3
3
2
110
4
4
0.25
0.5
44
0.15
0.5
44
0.05
0.5
33
0.5
20
200
(656.2)
Automatic
Manual or automatic ➏
Manual or automatic ➏
External contact at r1-r2
0.05
0.5
33
–
–
22
415
4
2
440
4
1.5
–
–
22
–
–
16.5
3g
30g, shock duration 18 ms, semi-sinusoidal in
the 3 directions x, y, and z
According to IEC 68-2-27 or DIN 40 046/7
0.75
1
1.5
2.5
18
300
(984.25)
16
400
(1312.3)
14
600
(1968.5)
14
1000
(3208.8)
Max. line length for remote reset
Rated insulation voltage: 300V.
American National Standards Institute.
According to CSA, UL: pilot duty 240V (B 300).
For more technical information, consult Allen-Bradley Sales Office.
Bulletin 817 to motor; installation: up to 200m not shielded.
For automatic reset: connect r1-r2.
Product Selection – Page 6-15
110, 220, 240, 380, 415, 440V 50/60 Hz
Special Us 24, 48V 50/60 Hz
AC
60
4
4
250V
240V
2.5 kV, 1 MHz, 2 s
DC
Supply
Impact Resistance
According to AS, BS, VDE 0660
According to CSA, UL ➊
2.5 kV, 50/60 Hz, 1 min.
5 kV, 1.2/50 µs
Potential-free make contact
Up to 300m (984.25 ft) shielded
Up to 1000m (3280.8 ft) shielded
Bulletin 817
Thermistor Protection Relay
Specifications, Continued
Environmental
4000
1330
550
250
100
20
10
-20°C
0°C
TNF-20K
TNF- 5K
TNF+15K
TNF+ 5K
TNF
Max. cold resistance of PTC sensor chain
Max. number of series connected
PTC sensors acc. to IEC 34-11-2
Response level
ϑ A = –25°C (13°F)…+60°C (140°F)
Reset level
ϑ A = –25°C (13°F)…+60°C (140°F)
Response level with short circuit
in sensor circuit
ϑ A = –25°C (13°F)…+60°C (140°F)
Measuring voltage acc. to IEC 34-11-2
Normal operation
Ambient Temperature
Storage (in dry rooms)
According to IEC 68-2-3 humid
Climatic Classification
heat
PTC sensor characteristic
According to IEC-34-11-2
1500 Ω
6
3300 Ω ± 300 Ω
1800 Ω ± 300 Ω
≤ 15 Ω
DC < 2.5V
–25°C (–13°F)…+60°C (140°F)
–40°C (–40°F)…+60°C (140°F)
40°C (104°F), 92% rel. humidity, 56
days
TNF: Rated response temperature
At 25°C (77°F) > 3h
Trip memory
In event of power supply
failure (zero-voltage
safe-guard)
Cat. No. 817-M⊗
At 40°C (104°F) > 1h
Cat. No. 817-U⊗
Unlimited (not
temperature-dependent)
Storage Time
At 60°C (140°F) > 15 min.
Construction
Open Terminals
Captive
2 x 2.5 mm2 (.0039 in2) single wire or
Terminals
Connection wire cross-sections
2 x 1.5 mm2 (.0023 in2) with end
ferrule
Protection class according to
IEC 529
Device (less terminals) IP30
Terminals (acc. to VBG 4) IP20
Installation
Bulletin 817 Thermistor Protection relay is designed for surface
mounting with screw fixing according to hole plan EN 50 002 or for
snap-on fixing to a top hat rail EN 50 022'-35 x 7.5. Arrangement,
assignment and marking of terminals in accordance with EN 50 005.
The mounting position of the Bulletin 817 does not influence its
function.
360°
360°
Typical Wiring Diagram
Terminal and block circuit diagram of Bulletin 817
Terminal and Block Circuit Diagram
T1
T2
PTC Temperature Sensor
Us
A1(+)
13
Thermal
Trip
Output
Relay
Cat. No.817-A ,-M ,-U
14
21
Supply
22
A2(–)
r1
Cat. No.817-M ,-U
Reset
Button
Remote Reset
➊
Cat. No.817-U
Trip Memory for
Power Supply Failure
Supply
Indication
Test Button
r2
➊ For automatic reset available in Cat. No. 817-M⊗ and Cat. No. 817-U⊗, connect r1-r2.
Product Selection – Page 6-15
6-17
Bulletin 817
Thermistor Protection Relay
Specifications/Approximate Dimensions
Application Example
Starter (Bulletin 100 and Bulletin 193) with additional Bulletin 817.
Legend
K1
F1
F2
S1
S0
S2
Us
Bulletin 100 contactor
Bulletin 193 thermal overload relay
Bulletin 817 Thermistor Protection relay
ON button
OFF button
Remote button reset
H1
H2
B1
Signal Lamp “Contactor ON”
Signal Lamp “Bulletin 817 tripped”
Thermistor in protected object
Circuit Diagram
Main Circuit
Control Circuit
Impulse Contact Control
L1
F7
Us
AC
L1
L2
21
S0
L3
N
22
13
S1
PE
K1
14
14
S2
Supply voltage
F9
A1
r1
1
3
5
2
4
6
2 ) r2
K1
A2
F2 Bulletin
817
2
4
21
A1
14
22
A2
T1 T2
6
T2
97
95
98
96
F1
B1
H2 H1
A1
M
The contacts 13…14 and 21…22 of the output relay
are drawn in their power-off position A1…A2.
13
F2 Bulletin
817
F1
K1
M1 3
B1
N
+t
(L2/F8)
A2
Approximate Dimensions
Position
of terminals
r1 and r2 are
not available
on Cat. No. 817-A
(1-3/8)
35
(1-3/8)
14
22
r1
r2
(–)A2
70
➊
(2-3/4)
60
(2-23/64)
50
(1-31/32)
Hole plan
45
(1-3/4)
➊ For Top Hat Rail 35mm to EN 50 022, Cat. No. 199-DR1.
Product Selection – Page 6-15
6-18
T2
21
T1
A1(+)
4.8
(3/16)
13
Dimensions are shown in millimeters (inches). Dimensions are not intended for manufacturing purposes.
35
13
7
(9/32)
5
(13/64)
95.5 (3-3/4)
95.5 (3-3/4)
PTC