Eaton's E50 modular plug-in limit switches are the industry standard with versatility of design and high reliability for low maintenance, installation and inventory costs. Standard Viton gaskets, seals and boots and a zinc die -cast enclosure provide exceptional chemical resistance to the common coolants, cleansing agents and hydraulic fluids found in machine tool, automotive, wastewater treatment and other heavy-duty industrial applications. Mounting dimensions accommodate both U.S. and DIN standards for easy retrofit installations. Super bright 24 120 Vac/Vdc LED indicating light versions simplify setup and troubleshooting operations. EATON Limit Switch Operating Head, Series: E50, Neutral Position Actuator Location, For Use With: E50 Series Heavy Duty Plug-In Limit Switch, 1.8 in-lb Operating Force, 5 deg Travel, 1/3/3S/4/4X/6/6P/13/IP67 NEMA Rating, 14 to 201 °F, Die Cast Zinc, 1.05 in L x 1.54 in W x 2.46 in H Dimensions