Air Pressure Switch Application Energy Management HVAC Contact Form SPDT Electrical Connection Type Hardwired Electrical Rating 1/2 A @ 125V DC 1/2 hp @ 250V AC 1/4 A @ 250V DC 1/4 hp @ 125V AC 15 A @ 125/250/277V AC 60 Hz Housing Material Steel Housing Type Conduit Box Input Voltage 125V AC 250V AC 277V AC Maximum Differential Pressure Setting 0.8 in wc Maximum Operating Temperature 180 Degrees F Maximum Pressure Rating 0.5 psi Maximum Pressure Setting 12 in wc