MICRO SWITCH™ Environmentally Sealed Limit Switches: EN Series, 3 Pole Single Throw (3PST) and Single Pole Double Throw (SPDT), 4 A Resistive at 28 Vdc, Stainless Steel Enclosure, Roller Plunger Actuator with Roller Guide Retaining Lock Ring, Resistant to Hydraulic Fluids, (9) 305 mm [12 in] Lead Wire Termination (20 Gage) Side Exit, Leads Marked with Circuit and Gage .. see full description