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-   -   When can you use a main lug only electrical panel (https://www.askmehelpdesk.com/showthread.php?t=483967)

  • Jun 29, 2010, 01:34 PM
    ptelectric
    When can you use a main lug only electrical panel
    I am install a 400 amp 480 volt panel outside a building. It will be fed from a breaker inside. Can this panel be a MLO or does it have to have a main breaker or disconnect.
  • Jun 29, 2010, 01:58 PM
    tkrussell
    Does not need to have a main, may be helpful for the local operation, but, as long as the main can be locked off, no problem.

    It will need to be at least rain tight.

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