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Range of application Design and operating principle These safety switches are suitable for hinged safety guards,whichneed to be closed in order to guarantee the necessary operational sa-fety.The variety of requirements to be found in practice can be metbymeans of the wide range of safety switches for hinged guard doors.Depending on the particular version of the switch,small doorsand service flaps,as well as heavy hinged doors on machinery andplants,can be protected in such a way as to provide for easy setting
up and maintenance. A general advantage of the safety switches shown here is the in-tegral cam within the safety switch.The requirements of EN 1088,such as positive linkage between cam and actuator,as well as protec-tion againsttampering,are thus fulfilled.This combination within theswitch provides costadvantage for the user in avoiding the necessity
of mounting a specially designed cam.These safety switches are pro-vided with slow action.All safety switches for hinged guard doors shown in this chapterbear the CE mark according to the Machinery Directive 98/37/EC. 77 ApplicationES 13 SB on hinged safety guard
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