Air Sensing Switch, Application Manual Reset, Contact Form SPST, Electrical Connection Type Hardwired, Electrical Rating 15 A Non-Inductive 120 to 277V AC, 300 VA Pilot Duty @ 120 to 277V AC, Housing Material Steel, Housing Material Finish Aluminum, Housing Type Conduit Box, Input Voltage 120 to 277V AC, Maximum Differential Pressure Setting 0.6 in wc, Maximum Operating Temperature 180 Degrees F, Maximum Pressure Rating 12 in wc, Maximum Pressure Setting 12 in wc