Pneumatic-Electric Switch, Air Connection Gender Male, Air Connection Size 1/4 in, Air Connection Type Barbed Hose, Allowable Pressure - Maximum 30 psi, Application Day-Night Control, Electric Heating Systems, Electric Heaters, Fan Control, Interlock Functions, Pumps, Case Material Painted Ferrous, Conduit Size 3/4 in, Contact Form SPDT, Diaphragm Material Neoprene, Electrical Connections Screw Terminal, Full Load Current @ 120V AC 25 A, Full Load Current @ 240V AC 25 A