SKU: SIE3RN20101CW30
Thermistor motor protection relays provide decisive benefits in cases in which current dependent protection using either a circuit breaker or an overload relay is not the perfect solution. In specific cases, overheating can occur without being detected by the thermal image in the circuit breaker or overload relay, for example in the case of heavy starting, operation with frequency converters, strong braking operations or restricted ventilation. The SIRIUS 3RN2 thermistor motor protection relays protect the motor reliably against overheating as they monitor the winding temperature of motors directly.
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