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    Chevynut321's Avatar
    Chevynut321 Posts: 4, Reputation: 1
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    #1

    Jul 19, 2012, 04:52 PM
    Electrical wiring in main breaker box
    I have a main service panel that has two open breaker holes in it. Now I'm adding a sub panel with a RV plug to a 30 amp breaker. The plug receptacle has 3 wires 2 black 1 green. I want hook it to the breaker and ground but the box don't have a neutral bus bar, where do I hook the other wire
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jul 19, 2012, 05:21 PM
    Is this 120 or 240 Volts?
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    Jul 19, 2012, 05:23 PM
    Quote Originally Posted by Chevynut321 View Post
    I have a main service panel that has two open breaker holes in it. Now I'm adding a sub panel with a RV plug to a 30 amp breaker. The plug receptacle has 3 wires 2 black 1 green. I want hook it to the breaker and ground but the box don't have a neutral bus bar, where do I hook the other wire
    Can you try to explain this again?
    Which box doesn't have a neutral bar? The panel?

    Most 30A travel trailer receptacles are 120V/30A.
    Chevynut321's Avatar
    Chevynut321 Posts: 4, Reputation: 1
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    #4

    Jul 19, 2012, 05:23 PM
    Quote Originally Posted by stratmando View Post
    is this 120 or 240 volts?
    120
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #5

    Jul 19, 2012, 05:24 PM
    Don't understand. Are you saying that there is no neutral buss in the main panel?

    Or ar you saying you have a main panel with two open breaker spaces and a box with a 30 amp recepitcal and there is no grounding/neutral buss in that box?
    Chevynut321's Avatar
    Chevynut321 Posts: 4, Reputation: 1
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    #6

    Jul 19, 2012, 05:46 PM
    Where to hook up the neutral wire and what is connected to
    Or ar you saying you have a main panel with two open breaker spaces and a box with a 30 amp
    Ive using a 30amp single 110 breaker in one of the open spaces in the main breaker box. The box has a power and ground buzbar,but has no neutral one. If I need to add a neutral buz bar what does it need to be mounted to and how
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #7

    Jul 19, 2012, 06:47 PM
    Still don't understand. Sounds like you have a box with a buss for the hot connections and a buss for the neutral connections. Neutral buss should be isolated from box. Ground connections would be through ground screw in box. Or you could add a grounding buss.

    Or you can wire directly to the receptical.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #8

    Jul 19, 2012, 07:35 PM
    We need a picture of the inside of this panel. Something does not add up.

    Also, try to keep things you quote separate. Your posts are very hard to read.
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