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DB-100 belt tear switch (optional PL50): DB-100 the tearing switch can provide alarm signal to the monitor or turn off the conveyor when the belt is torn, punctured or damaged at the joint and sharp objects protrude the belt. The tear switch is mounted in pairs on both sides of the belt and is connected by the aviation wire rope of two sections of ethylene jacket. one end of the rope is permanently fixed to the support bracket and the other end is connected to a spring ball on the tear switch. two segments of the cord formed a closed loop under the belt. When an object or torn belt is suspended and one or two cord is swept down, a fault is detected. Because of the detachment of the wire rope, it pulled the spring ball out of the base, causing two micro switches to issue an alarm or turn off the conveyor. Features: Simple and firm structure without maintenance; cast aluminum shell with protective layer Integral cover plate, easy to connect; large capacity miniature contact kg 0.9 is required to trigger the switch Key technical indicators: ◆ two SPDT fretting switches, NEMA4 housing ◆1' NPT wire opening (two standard and one explosion proof) ◆ appearance parts made of stainless steel ◆ switch rating of 20 A/125V,250V or 480 V communication, can be connected to the regular open or closed form as required