Air Pressure Switch Application Furnace Control Package Burner Control Contact Form SPDT Electrical Connection Type Hardwired Electrical Rating 15 A Non-Inductive to 277V AC 300 VA Pilot Duty @ 115 to 277V AC Housing Material Steel Housing Type Conduit Box Input Voltage 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 Minimum Differential Pressure Setting 0.02 in wc