Heavy duty position switch
Extreme
steute Schaltgeräte
The ZS 71 and ZS 80 "Extreme" series differ from the basic versions in that they have plastic rather than metal enclosures, as well as a particularly effective sealing concept. In addition, the pull-wire unit is made of stainless steel; the mounting screws are also stainless steel. These details betray the fact that our new products have been developed especially for use in corrosive environments. Classification in protection class IP 67, or IP 69K for the ZS 71, is proof that they continue to function perfectly and on a sustained basis even when impacted by a high-pressure cleaner. An integrated emergency-stop button on the ZS 80 makes it possible to arrest a hazardous movement directly at the switch.
The new ZS 91 is predestined for heavy-duty applications of all kinds. Its fibreglass-reinforced plastic enclosure can withstand even high mechanical wear and tear. Its lever release makes handling easier, and its optimised construction – in combination with state-of-the-art manufacturing – permits realisation of high protection classes up to IP 69K. The wire length of the ZS 91 can measure up to 2 x 100 m, so that even large hazardous areas (e.g. conveyor belts in the mining and recycling industries) can be equipped with an easily accessible emergency-stop function. Further safety functions include integrated pull-wire and wire-break monitoring. A belt alignment switch variant is also available.
