Johnson Controls P70CA-61 SPST Pressure Control Ammonia 20" 100 PSI

The Johnson Controls P70CA-61 SPST Open High-Pressure Control Switch for Ammonia is one of the essential devices in HVAC systems that control pressure. It operates on a single-pole single-throw mechanism and breaks the circuit whenever the pressure goes high, thus preventing the system from being damaged. This switch is mainly used in industrial refrigeration systems that deal with ammonia. It has a pressure rating of 100 PSI and a 20" capillary tube for easy pressure reading despite the system configuration.