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Position switches with safety function / Class
1
Application: Z/T and E.95 range position switches are suitable for sliding and hinged safety guards, which need to be closed to ensure the necessary operational security. In combination with AES and/or AZR range safety monitoring modules (see chapter 10.), all position switches class 1 shown in this chapter achieve Control Category 3 or 4 to EN 954-1. Further applications for positions switches class 1 are most varied positioning duties. The variety of requirements to be found in practice can be met in detail by means of a wide range of actuating elements. Design and mode of operation: On the position switches class 1 the guarding device and the positive break NC contact are positively linked. Ranges Z 332 - metal enclosure - Design to EN 50041 Metal enclosure Gold-plated solid siver contacts Magnetic-storage snap action system Wiring compartment Short contact-bounce duration Switching system separated from snap action system, providing constant switching point independent of conatct wear Large contact break High repeat accuracy of switching point position Wide range of alternative actuators Actuator heads can be repositioned in steps 4 x 90° Angle of roller lever adjustable in 10° steps Good resistance to oil and petroleum spirit Z/T 235 - metal enclosure - Design to EN 50047 Metal enclosure Available with 2 positive break NC contacts Snap action with constant contact pressure up to switching point Slow action available with overlapping or staggered contacts Wiring compartment Wide range of alternative actuators Actuator heads can be repositioned in steps 4 x 90° Angle of roller lever adjustable in 10° steps Good resistance to oil and petroleum spirit Z/T 236 - Thermoplastic enclosure - Design to EN 50047 Thermoplastic enclosure Double insulated Available with 2 positive break NC contacts Snap action with constant contact pressure up to switching point Slow action available with overlapping or staggered contacts Wiring compartment Wide range of alternative actuators Actuator heads can be repositioned in steps 4 x 90° Angle of roller lever adjustable in 10° steps Good resistance to oil and petroleum spirit Z/T 335 - metal enclosure - Design to EN 50041 Metal enclosure Snap action with constant contact pressure up to switching point Slow or snap action available with 2 positive break NC contacts to EN 60947-5-1 Slow action available with overlapping or staggered contacts Wiring compartment Wide range of alternative actuators Actuator heads can be repositioned in steps 4 x 90° Angle of roller lever adjustable in 10° steps Good resistance to oil and petroleum spirit Z/T 336 - Thermoplastic enclosure - Design to EN 50041 Thermoplastic enclosure Double insulated Available with positive break NC contacts to EN 60947-5-1 Snap action with constant contact pressure up to switching point Slow action available with 2 positive break NC contacts Slow action available with overlapping or staggered contacts Wiring compartment Wide range of alternative actuators Actuator heads can be repositioned in steps 4 x 90° Angle of roller lever adjustable in 10° steps Good resistance to oil and petroleum spirit  |
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Schmersal Safety Limit Switches
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