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Thread: 100% branch rating on PDU enclosure with standard (80%) breakers

  1. #11
    Join Date
    Feb 2003
    Location
    New York, 40.7514,-73.9925
    Posts
    4,309
    Quote Originally Posted by Smart $ View Post
    That's just it. If the assembly is UL listed for 100% operation, the NEC has no say on what is inside the unit.

    This assumes the breakers are not replaceable in the same fashion as a panelboard.
    Most of the time they are easily field replaceable. Especially the output breakers are often something like an Square D I Line panel
    Ron

  2. #12
    Join Date
    Jun 2006
    Location
    Ohio
    Posts
    21,229
    Quote Originally Posted by ron View Post
    Most of the time they are easily field replaceable. Especially the output breakers are often something like an Square D I Line panel
    I suppose I should have stated that differently. The breakers, if replaced in the field, must be listed replacements for the PDU.
    I will have achieved my life's goal if I die with a smile on my face.

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