Air Pressure Switch Application Air Filtration Furnace Control Humidity Detection and Control Commercial HVAC Residential HVAC Contact Form SPDT Electrical Connection Type Screw Terminals Electrical Rating 1 A Pilot Duty @ 120 VA 5 A @ 120 to 277V AC 5 A @ 28V DC Housing Material Stainless Steel Housing Type Conduit Box Includes Adjustment Tool Mounting Hardware Input Voltage 120V AC 277V AC 28V DC Maximum Differential Pressure Setting 0.8 in wc