What are the applications for D4BL Guard Lock Safety-door Switch release keys?

The release keys are used to release locks during power interruptions and in emergencies.

The lock is released and the safety door or other device is opened by using the supplied special release key to move from the LOCK position to the UNLOCK position.

Note:The locks are shipped set to the UNLOCK position and must always be set to the LOCK position before use. 


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