MARS 43346 Pressure Switch 326058-755 this is a three-phase motor

this is a three-phase motor designed specifically for commercial-grade equipment and requires a 3-phase power source

it creates airflow turbulence and increases amperage draw on the fan motor

allowing for simplified installation and specialized electrical syncing with your thermostat's "O" or "B" terminal

Universal Compatibility: Serves as the official successor to the S1-024-25329-701

MARS 43346 Pressure Switch 326058-755 this is a three-phase motorThe MARS 43346 Pressure Switch is a heavy duty Single Pole Single Throw (SPST) low pressure control designed for demanding HVAC and refrigeration applications. Engineered for precision and longevity, this automatic reset pressure switch features a fixed setpoint configured to open on a pressure drop at 25 PSI and close on a rise at 50 PSI. The MARS 43346 is a versatile HVAC low pressure switch compatible with a wide voltage range from 24V to 250V,