ABB Temperature Monitoring Relay With SPDT Contacts, 24 240 V ac/dc

  • RS Stock No. 876-4985
  • Mfr. Part No. 1SVR730720R1400
  • Manufacturer ABB
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

CM-MSS Thermistor Motor Protection Relays

Heavy duty starting
Increased switching frequency
High ambient temperature
Insufficient cooling
Break operation

The CM range of thermistor motor protection relays are used to control motors equipped with PTC temperature sensors. The PTC temperature sensors are incorporated in the motor windings to measure the motor heating. This enables direct control and evaluation of the following operating conditions:

Main features include:
Dynamic interrupted wire detection
Wide control supply voltage rang 24-240 V AC/DC
Short circuit monitoring of the sensor circuit
Non-volatile fault storage
Remote reset
Screw connection technology or Easy Connect Technology available

Single Sensor Input Version
Wire Break Detection


Some products also have the ATEX approval for the use in hazardous areas.

Attribute Value
Monitoring Application Temperature
Supply Voltage 24 240 V ac/dc
Contact Configuration SPDT
Time Delay <100 ms
Temperature Sensitivity Overtemperature, Winding Temperature
Series CM-MSS
Current Range Maximum of 3.7 mA
Minimum Operating Temperature -25°C
Standards Met ATEX, CB Scheme, CCC, CE, CULus, EAC, EMC, GL, IEC/EN 60255-1, IEC/EN 60947-8, RCM, RoHS
Length 103.7mm
Width 22.5mm
Operating Temperature Range -25 +60 °C
Terminal Type Screw
Dimensions 103.7 x 22.5 x 85.6 mm
Mounting Type DIN Rail, Snap-In
Special Features Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, Manual & Automatic Reset, Non-Volatile Fault Storage, One Measuring Circuit, Over Heating Protection, Over Load Protection, Remote Reset, Short-Circuit Monitoring of the Sensor Circuit, Test
Maximum Operating Temperature +60°C
Height 85.6mm
11 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 540.14
Per unit
1 +
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