Air Pressure Switch Application Commercial HVAC Industrial HVAC Contact Form SPDT Electrical Connection Type Hardwired Electrical Rating 3 A @ 115V AC Housing Material Steel Housing Type NEMA-1 Enclosure Input Voltage 115V AC Maximum Differential Pressure Setting 0.8 in wc Maximum Operating Temperature 130 Degrees F Maximum Pressure Setting 12 in wc Minimum Differential Pressure Setting 0.02 in wc Minimum Operating Temperature 0 Degrees F Minimum Pressure Setting 0.03 in wc