Pressure Switch Differential 17.4 to 450 psi Range 11.6 to 464 psi Port Type 1-Port 1/4 in FNPT Contact Form SPDT NEMA Rating 1 Actuation Type Diaphragm Action Standard Series MDR-F Factory On/Off Setting 145/290 psi AC Contact Rating 10A @ 230V DC Contact Rating 6A @ 12V