MARS 43304 SPST Fan Cycling Pressure Switch 225 PSI-CL 150 PSI-OP Close on Rise

The MARS 43304 SPST Fan Cycling Pressure Switch operates as a high-quality control component that controls HVAC system fan operations through refrigerant pressure measurements. The Single-Pole Single-Throw mechanism operates with Close on Rise action that turns on at 225 PSI and switches off at 150 PSI. This Switch functions between 24-250V and serves as a control mechanism in air conditioning and refrigeration units to manage condenser fan motors for improved cooling and system protection against overload. The automatic fan cycling system based on refrigerant pressure pressure changes improves energy efficiency and enhances both equipment longevity and correct refrigerant flow performance.