Ranco O16-108 Single Pressure Control - High Limit Auto Reset (100-400 psi, 4-150 psi) SPDT Switch for HVAC, Refrigeration & Industrial Applications

Single-pressure controls connect to one of the two pressure lines in a refrigeration system and make or break an electrical connection when pressures exceed or drop below the setpoint. They feature a control unit that helps protect the sensitive components and allows the user to view and adjust the setpoint. They are commonly used with the low-pressure side to control the compressor and act as a low-limit safeguard. They can also act as an overpressure safeguard on the high-pressure line.