Relais de protection des moteurs à thermistances

Protecting motors from overheating

The thermistor motor protection relays of the CM-MSx.xx range monitor the winding temperature of motors which have PTC temperature sensors installed. These sensors are incorporated in the motor windings thus measuring the motor heat directly. This direct temperature measurement enables the thermistor motor protection relays to evaluate various motor conditions such as overheating, overload and insufficient cooling. Depending on the product also the ATEX approval is available for the use in hazardous areas. 

Main benefits

  • Reliable operation of your motors
  • Easy status indication and troubleshooting
  • Operation in hazardous areas possible

Main features

  • 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

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Products and documents

CM-MSS video
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