Explosion Proof Pressure Switch Range 500 to 5000 psi Process Connection 1/4 in MNPT Housing Material 316 Stainless Steel Wetted Materials 316 Stainless Steel Piston and Buna-N O-Ring Compatible With Air and Liquids Electrical Connection 1/2 in MNPT Conduit Connector with 3-18 AWG 12 in Wire Leads Contact Form SPDT Circuit Type Not Applicable AC Contact Rating 5A at 125/250V AC DC Contact Rating 3A @ 28V DC Inductive 5A @ 28V DC Resistive NEMA Rating 7 9 IP Rating 67