This SPST pressure switch has an opening pressure of 150 PSI, a closing pressure of 225 PSI, and a 1/4-inch female SAE connection. It has an auto-reset feature, a snap-acting sensor, direct mounting, and an operating voltage of 24/120/240V AC. The switch opens on low-pressure and has bursting pressure of 5000 PSI. It has a function of fan cycling control and is suitable for use with A/C refrigeration.