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-   -   Elevator Disconnect (https://www.askmehelpdesk.com/showthread.php?t=621999)

  • Dec 23, 2011, 08:50 PM
    adamie
    Elevator Disconnect
    Have a 26 amp motor, 6.6 hp, voltage at 208. What size fusible disconnect do I need?
    For an Elevator circuit.
  • Dec 24, 2011, 04:09 AM
    tkrussell
    Something is odd, 6.6 HP is not a standard NEMA motor size.

    And according to NEC Table 430.250, a 7.5 HP is rated 24.2 amps at 208 volts.

    Disconnecting means needs to be rated no less than 115 % of full running load of the motor.
  • Dec 27, 2011, 09:05 PM
    adamie
    Thanks tKrussell,

    I Thought the same thing a 6.6 hp wasn't in my 2008 code book so how I'm going to calculate this.
    Also in the NEC 430.22(E) says that elevators have to have a duty cycle service on the nameplate,
    (5)min, (15)min,(30&60)min, or continuous rated motor.So depending on the amperage and multiplying
    The percentages will give me the correct amps.

    Thanks once again


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