Air Sensing Switch HVAC/General Purpose Differential (In. WC) 0.02 SPDT Switch Type Pressure Setting Range (In. WC) 0.05 Electrical Rating 300 VA Pilot Duty @ 115 to 277 VAC 15 Amps Noninductive To 277 VAC Sample Line Connector Barbed Height (In.) 2-15/16 Width (In.) 4-3/8 Depth (In.) 6-1/8 Mounting Holes O.C. (In.) 3-57/64 Operating Temp Range (F) -40 to 180 Electric Duct Heater UL and C-UL listed CE and CSA Certified