Limit Switch Receptacle, 1P, 600VAC Rated, Heavy Duty, (E50)Limit Switch Receptacle, Single Pole, 600V Rated. Terminals, Full Size, Heavy Duty (E50), Single Pole (5 terminals), Screw Terminals, with 1 2 inch NPT Conduit Entrance Limit switches offer high precision in terms of accuracy and repeatability, primarily because they make direct contact with the target to be sensed . When an object contacts the limit switch lever (or plunger) the lever moves a pre travel distance to the operating point where the