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    artmantommie's Avatar
    artmantommie Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 24, 2009, 10:34 PM
    Power distro unit
    I don't know if you are familiar with the company motion labs. So what I want to know is how many 15 or 20 amp breakers I can run using a 50 amp breaker as the main.
    You see what I'm trying to do is use a portable sound system in my church sancturary, and the thing is their circuit breaker panel is already full from top to bottom. If that can't work my church also has a power outlet that is mounted on the outside of the church that is used to power rv`s. please help me.
    What I'm hooking up to unit is 3 power amps one per breaker and 4 rack equipment components, 3 of the components each will be pluged in with the power amp.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Aug 25, 2009, 06:50 AM
    The issue is not how many outlets you can have on a 50 amp feeder,it is how much load a 50 amp feeder can serve.

    You can connect no more than 12,000 watts, or 6,000 per each of the two hot legs, assuming you have 120/240 volt single phase service.

    You can have as many outlets as needed, just cannot exceed 12,000 watts.

    And this assumes the show is no longer than 3 hours. If so, then the max load will be 9,600 watts, derating the 12KW by 80%.

    How do you plan to connect these outelts to the 50 amp outlet? Do you have a portable distro panelboard?
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