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Please check my diagram

Discussion in 'Technical Chat' started by aro, Oct 27, 2019.

  1. Oct 28, 2019 at 3:41 PM
    #21
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    aro[QUOTED][OP] likes this.
  2. Nov 6, 2019 at 8:21 PM
    #22
    treyus30

    treyus30 cntl-y

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    Just my 2c as an engineer during the week, code violator on weekends:

    I don't see an issue running 100A for future-proofing the circuit, just make sure everything along the way can support 100A continuous. That means (as others have stated) at least 4 gauge into the box, and a relay capable of supporting 100A+. If you're grounding to chassis, make sure you get a clean mating (sandpaper) at the terminal point, and if you're grounding back to battery via wire, make sure to count that length in your gauge consideration. Your switch box will also need to support 100A input, and technically each switch would need to be individually fused to its limit (say, 40A, probably less).

    Keep in mind also, that a 100W LED bar will only draw like 60W (/13.2V = 4.5A). So to some level I have to agree this may be overkill. But then again I have 250A breaker on my audio circuit, so you do you.
     
  3. Nov 6, 2019 at 8:40 PM
    #23
    PhenixFord

    PhenixFord Well-Known Member

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    Although AC and DC are different animals, power distribution can be handled in similar fashion. Agreed that you need to keep in mind the different ratings of different devices in different areas of the distribution. But you still follow the same principals of something like your typical Load Center (Main Breaker and wiring / Sub Breakers and wiring).
     
  4. Nov 7, 2019 at 1:21 PM
    #24
    treyus30

    treyus30 cntl-y

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    ..I think if your point is he can use smaller wiring out of the distribution box, yes of course I agree.
    (I'm a transmission engineer btw, but focused mainly on microelectronics in school, and dabbled in RF so have plenty of experience in all methods of getting current around ;))
     
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  5. Nov 7, 2019 at 1:45 PM
    #25
    PhenixFord

    PhenixFord Well-Known Member

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    Nice to meet you brother. I've been "Playing With Fire" for the past 35 years in the residential/commercial/industrial fields. Currently expanding my knowledge in instrumentation.
     

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