Pressure Switch, Differential 10 to 90 psi, Range 10 to 100 psi, Port Type 1-Port 1/4 in FNPT, Contact Form SPDT, NEMA Rating 4, 4X, Actuation Type Diaphragm, Action Standard, Series L, Factory On/Off Setting 90 Percent of Range, AC Contact Rating 10A @ 125/250V, DC Contact Rating 0.25A @ 250V, 0.5A @ 125V