HP SWITCH (MRD-12-00628-40 /-41)

The HP (High Pressure) Switch is a critical component in transport refrigeration systems, designed to monitor and respond to pressure changes on the high side of the refrigerant circuit.

• High-Side Pressure Monitoring: Positioned between the compressor and condenser, the HP switch keeps track of refrigerant pressure in the high-pressure section of the system.
• Compressor Protection: If the pressure exceeds safe operating limits, the switch cuts off power to the compressor, preventing overheating or mechanical failure.
• Operational Safety: The switch acts as a safeguard against system overpressure, protecting both equipment and the surrounding environment.
• Reset Capability: Depending on the model, the HP switch may automatically reset or require manual intervention after a pressure fault has cleared.
• Maintenance Indicator: Activation of the switch can signal issues such as poor airflow, condenser fouling, or excessive refrigerant charge.

Overall, the HP switch enhances the reliability and safety of transport refrigeration systems by continuously monitoring and controlling high-side pressure conditions.