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-   -   Circuit breaker load (https://www.askmehelpdesk.com/showthread.php?t=310550)

  • Jan 29, 2009, 09:20 PM
    Noriel
    Circuit breaker load
    I have 70 amp. Breaker, and has 2 unit /motors to be hooked up
    Combined load of motors 49 amps.?
  • Jan 29, 2009, 09:26 PM
    Nordic58

    The breaker is intended to protect the wire which for 70amp would be #6. You can connect (2) loads to one breaker, as long as each of the loads is protected at their rating, usually done through a disconnect switch with fuses. Additionally the breaker should not be loaded more than 80% for a continious load (more than 3 hours) and for a motor load, should be sized 125% of the FLA.
  • Jan 29, 2009, 09:43 PM
    stanfortyman
    Quote:

    Originally Posted by Noriel View Post
    I have 70 amp. breaker,,and has 2 unit /motors to be hooked up
    combined load of motors 49 amps.??????

    Are you asking how this should be done? Or are you asking if it is OK?
  • Jan 29, 2009, 09:43 PM
    stanfortyman
    Quote:

    Originally Posted by Nordic58 View Post
    The breaker is intended to protect the wire which for 70amp would be #6.

    This would only be true for THHN conductors in conduit. #6NM cable is only good to 60A

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