Description
The Supco SHP325225 High Pressure Switch is an electrical control component designed for use in refrigeration systems to monitor refrigerant flow on the high side of the circuit. It is calibrated to open the electrical circuit at 325 PSI and reclose at 225 PSI, protect compressors and other essential components from safe operating conditions caused by excessive head pressure. In air conditioning, heat pump, and commercial refrigeration HVAC systems. It is installed on the discharge line or service port, where it responds directly to system pressure changes. When abnormal pressure is detected, the switch interrupts control power to shut down or cycle equipment safely within the system.
