ARTICLE

Safety key switch

18 September 2013

The new SR unit from Fortress Interlocks is a compact safety key switch that is ideal for isolating power to machinery.


When the key is trapped inside the SR unit the power to machinery is on, and when the key is free, power is off. This allows the person carrying the freed key to enter the machinery or guarded area safely and power is not resumed until the key is returned. This is a typical sequence; others can be specified.

 

The key switch is heavy duty, housed in a metal enclosure which is IP rated 65/66/67. Its compact design allows the customer plenty of space for wiring. The switch current is 20A.

 

The SR key switch is part of Fortress’ mGard range of safety interlocks. Individual modules can simply be added or removed depending on the application which allows flexibility and tailoring.

 
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