Results 1 to 3 of 3
  1. #1
    Join Date
    Mar 2007
    Location
    Tampa, Fl
    Posts
    155

    Default Over Amped Panel?

    Service equipment is a single 400Amp disconnect and this equipment/panel box is rated for 400amps. The load side of the disconnect has two conductors going to two seperate panels. These panels have no disconnect and the equipment/panels are rated at 200Amps each according to the label. Is this allowed or do these panels need a 200Amp breaker/disconnect to protect them since they are rated at 200amp and there is a potential of 400amp coming into it?

    Similar Threads:
    2018 ASHI InspectionWorld

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,252

    Default Re: Over Amped Panel?

    Quote Originally Posted by Matthew Barnicle View Post
    Service equipment is a single 400Amp disconnect and this equipment/panel box is rated for 400amps. The load side of the disconnect has two conductors going to two seperate panels.
    Problem #1 - Those conductors are multiple tapped at the load side of the 400 amp main disconnect.

    These panels have no disconnect and the equipment/panels are rated at 200Amps each according to the label. Is this allowed or do these panels need a 200Amp breaker/disconnect to protect them since they are rated at 200amp and there is a potential of 400amp coming into it?
    Problem #2 - Yes, those panels need to be protected by 200 amp maximum mains, which could be in those panels.

    Problem #3 - The feeders which are multiple tapped off the 400 amp main are (I am presuming here) only 200 amp rated, thus they would need to be rated for 400 amps, or, they could each be protected on their supply end with a 200 amp overcurrent device. There are some exceptions for feeder taps, but few, if any, would be applicable here.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3
    Join Date
    Mar 2007
    Location
    Tampa, Fl
    Posts
    155

    Default Re: Over Amped Panel?

    Thanks Jerry, exactly what I was looking for.


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •