temperature protection relay / DIN rail / for motors
CM-MSE series ABB



  • Measured/monitored value:


  • Other characteristics:

    DIN rail, for motors


The thermistor motor protection relays CM-MSE, CM-MSS and CM-MSN 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 various operating conditions. Depending on the products also ATEX approvals for use in hazardous areas are availabe.
ABB also offers PTC temperature sensors C011 (according to DIN 44081) which are suitable for embedding in motor windings.

CM-MSE single function thermistor motor protection relay
The single function relays are equipped with 1 n/o output contact in a 22.5 mm wide enclosure and they are supplied with a single voltage range.