Ex switchgearPosition switches 2.

A for positive break. In addition, all Ex position switches shown in chapter1.3 can also be used for the applications described above. The Ex position switches are available with snap actionor slow action. The majority of units are also obtainable with metal professional rollers . The switches are listed in sequence of body size, star-ting with the smallest devices. ApplicationDesign andmode of operation Ex position switches are used wherever moving partson machinery and plants need to be positioned, con- trolled and monitored. The particular requirements in industrial practice need individual solutions. The design details in relation to body dimensions, materials, elec- trical loading capacity, rated values and quality charac- teristics are to a great extent determined by the variety of application, from precision mechanics to heavy en- gineering.Many of the Ex position switches fulfil the requirementsof IEC 60947-5-1 and can therefore also be used as Ex position switches with safety function. These pro- industrial ducts are identified in the catalogue by the symbol

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