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    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #1

    Dec 4, 2009, 12:21 PM
    Elevator Illumination Disconnect
    Having trouble locating the code for the Type of disconnect for Elevator Car Illumination.
    Currently lighting on these 2 side by side elevators are on 2 separate circuits. Fed by a remote panel.
    They want a disconnect in Equipment Room, it is already protected by Breakers.
    I was thinking a 2 pole disconnect, using 2 separate single pole breakers, or even a 1900 with industrial cover and 2 switches.
    Does this disconnect require "Fuses"?
    Have been to the Stickey, no luck.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Dec 4, 2009, 12:25 PM

    Strat, see Section 620.22 of the 2008 NEC.

    The disconnect shall be in the machine room and shall be the OCPD.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #3

    Dec 8, 2009, 07:20 AM

    I see shall be OCPD and to be locking.
    Don't see the need for fuses? Maybe they are mistaken or myself?
    Does it have to be fuses as Elevator Guy suggested or can I use a 2 pole Outdoor disconnect(They have a provision for a lock). The Elevator uses many keyed alike locks, and one could be used to secure these 2 breakers, in this disconnect?
    Thanks again.
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    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Dec 8, 2009, 07:47 AM
    Strat, Section 620.22 states:

    " The overcurrent device protecting the branch circuit shall be located in the elevator machine room..."

    My interpretation of that is the disconnect must be the OCPD, and can be a fusible disconnect or circuit breaker, not just a switch.
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    Stratmando Posts: 11,188, Reputation: 508
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    #5

    Dec 8, 2009, 08:02 AM

    Thanks, I agree, Any suggestions on Locking 2 separate poles?
    A 2 pole outdoor disconnect that has the ability to be locked? Thanks again.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #6

    Dec 8, 2009, 08:13 AM

    A NEMA 1 fusible disconnect also has locking means.

    A two circuit breaker panel is more difficult to lock, so go with a fusible disconnect.

    I don't see a need for NEMA 3R, unless you have one in stock.
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    Stratmando Posts: 11,188, Reputation: 508
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    #7

    Dec 8, 2009, 09:30 AM

    Just got a call back, and he referred me to 620.53.
    I wanted too use 1 enclosure, It's safe, cheaper, and I believe meets code, and will use 1 enclosure not 2?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #8

    Dec 8, 2009, 01:52 PM
    Sure, 620.53 states that all circuits for lighting, receptacles, and ventilation shall be opened with one switch, and the disconnect shall be lockable in the open position.

    I see no requirement for NEMA 3R, unless the interior oof the room would ne considered a wet location, which I doubt.

    You should be fine with a NEMA 1 fusible switch.
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    Stratmando Posts: 11,188, Reputation: 508
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    #9

    Dec 8, 2009, 02:38 PM

    It's not wet, space allows 1 disconnect with no problem, 2 separate disconnects would be a problem, that is why I want to use a 2 pole disconnect(for the Locking ability), Not weather.
    Does this make any sense, this way 1or both can be off and locked, I appreciate your time, Take Care
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #10

    Dec 8, 2009, 03:02 PM
    Sure, use a two pole, even a three pole, in case you have three 120 volt circuits.

    Remember, all circuits in the car need to be disconnected with one switch. So if you have two lighting circuits, the third pole can be used for ventilation.
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