Thermistor Motor Protection Relay

A thermistor motor protection relay is a device designed to protect electric motors from damage caused by overheating.

These relays utilize a thermistor, a temperature-sensitive resistor, to monitor the temperature of the motor. When the motor's temperature exceeds a predetermined threshold, the thermistor changes its resistance, triggering the relay to interrupt the power supply to the motor.

• This action prevents further heating and potential damage to the motor windings.
• Thermistor motor protection relays are commonly used in applications where motors operate under heavy loads or in environments with high ambient temperatures.