1pc Refrigerator PTC Starter Relays 1/3/4Pins Compressor Overload Protector Refrigerator PTC Starting Relays Accessories(3pin 12ohm)

Overload detection: real-time monitoring of current and temperature, and quickly cut off the circuit when the threshold is exceeded to prevent the compressor from burning out due to overload. Automatic reset: Some models have a delayed automatic reset function, which can resume operation after excluding light overload and reduce manual intervention. Manual reset: In case of severe overload, manual reset is required to avoid damage caused by repeated start-up without fault resolution. Compatibility: It is necessary to match the compressor power and voltage specifications to ensure that the protection threshold is accurate and to avoid malfunction or protection failure. Installation and maintenance: The installation should be firm, the heat dissipation should be good, and the contact oxidation and sensitivity should be checked regularly to ensure long-term reliable work.