This product is part of the NEMA Limit Switches range. The foundry switch is used in foundries or mills where falling foundry sand or similar material could build up and jam the operating mechanism. The shaft has a dust boot and extends from the switch case, preventing sand build up around the shaft. The device can withstand hot falling sand up to 300° F (149° C). The limit switch is a device that converts a mechanical motion into an electrical control signal. The switch is DPDT-DB (double pole, double throw, double break) with Form Zb, snap action contacts. It is furnished with screw clamp terminals for electrical connection and one 1/2in NPT cable entry. The spring return mechanism without operating lever supports lateral approach and switch actuation in CW position, from left. CW and CCW operation contacts are one normally closed, one normally open. This rotary head limit switch has a fixed type body which is made of cast aluminum with corrosion resistant grey painted finish. It is IP67 and NEMA 1/2/4/12/13 rated. The L100/300 mill and foundry for severe duty fixed sequences 59mm housing, available in 2-pole or 3-pole configurations. This switch is for use in foundries or mills where falling foundry sand or similar material could build up and jam the operating mechanism.