The XCKJ ATEX limit switches range is designed to have the most robust head in his category, snap positive contacts and a fixed of plug-in body. The XCKJ390541H29EX limit switch is composed of a fixed zamak body and a rotary zamak head. The fixing is done by the body. It has a thermoplastic spring return roller lever operator with a lateral approach (1 or 2 programmable directions). The movement of operating head is rotary. It has two normally closed and one normally open snap action contacts without positive opening operation. It has one cable entry tapped for M20 x 1.5mm cable gland (included) and it is powered by screw-clamp terminals (clamping capacity : 1 x 0.34…2 x 0.75mm²). The contactor can perform an average of 20 million no-load operating cycles without mechanical failure. The XCKJ390541H29EX limit switch is made of a zamak body and a zamak head. It measures 77mm in height, 40mm in width, and 44mm in depth. It complies with INERIS 04ATEX0014X and IEC-Ex INE 17.0020X standards, and its protection level complies with IP66 and IP67. Telemecanique Sensors limit switches are ideal for industrial environments : they are precise, robust, reliable, easy to install and offer high repeatability. A limit switch is a device that converts a mechanical motion into an electrical control signal