Supply circuit disconnecting means with rotary handles in compliance with NFPA 79 and UL 508A
Download the white paper: Rotary handles for main switches in compliance with NFPA 79 and UL 508A
The differences between IEC and North American standards for control panel can be seen in different requirements for accessories. An example are rotary handles for main switches that can only be operated by the intentional switching of an additional handle when the door is opened.
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