ABB Temperature Monitoring Relay, SPDT, DIN Rail

Bulk discount available

Subtotal (1 unit)*

£112.23

(exc. VAT)

£134.68

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 2 unit(s) shipping from 07 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 4£112.23
5 - 9£106.61
10 - 24£101.00
25 - 49£95.40
50 +£89.78

*price indicative

RS Stock No.:
876-5005
Mfr. Part No.:
1SVR740722R1400 CM-MSS.21P
Brand:
ABB
Find similar products by selecting one or more attributes.
Select all

Brand

ABB

Monitoring Application

Temperature

Contact Configuration

SPDT

Mounting Type

DIN Rail

Time Delay

<100ms

Temperature Sensitivity

Overtemperature, Winding Temperature

Hazardous Area Certification

ATEX

Series

CM-MSS

Special Features

Automatic Reset, Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, Non-Volatile Fault Storage, One Measuring Circuit, Over Heating Protection, Over Load Protection, Short-Circuit Monitoring of the Sensor Circuit

Operating Temperature Range

+60°C

Length

103.7mm

Height

85.6mm

Minimum Operating Temperature

-25°C

Dimensions

103.7 x 22.5 x 85.6mm

Maximum Operating Temperature

+60°C

Width

22.5mm

Terminal Type

Push In

Current Range

Maximum of 3.7mA

CM-MSS Series Thermistor Motor Protection Relays


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

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 range for this series 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

Approvals

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

Related links