Westinghouse FF4-8 Pressure Switch

The Westinghouse FF4-8 is an electromechanical pressure switch for automatic pressure monitoring and control in pneumatic and hydraulic systems, with an adjustable setpoint from 0.5 to 8 Bar. It is panel- or equipment-mounted and designed to monitor air, water, hydraulic fluids, and non-corrosive media, operating at 50/60 Hz for use in compressors, pumps, HVAC systems, industrial machinery, and related automation equipment. Key specifications include Brand: Westinghouse; Part Number: FF4-8; Product Type: Pressure Switch; Pressure Range: 0.5–8 Bar; Switching Function: Adjustable pressure control; Control Type: Electromechanical; Mounting Type: Panel or equipment mounted; Frequency Rating: 50/60 Hz. Common replacements: Eaton FF4-8; Danfoss KPI35; Square D 9013 Series Pressure Switch.