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  1. #1
    Join Date
    Dec 2009
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    6

    Default circuit breaker upgrade

    My son and 3 of his buddy move into a house in the sunset area of San Francisco this week-end. All was fine until they plugged all their hdtv, computers, laptops, etc..... Is anyone out there that can tell me how many amps circuit breaker they need to sustain that kind of electrical demand all at once, or is more to it??


    Thanks

  2. #2
    Join Date
    Feb 2009
    Posts
    693

    Default Re: circuit breaker upgrade

    Quote Originally Posted by richardlaskar View Post
    My son and 3 of his buddy move into a house in the sunset area of San Francisco this week-end. All was fine until they plugged all their hdtv, computers, laptops, etc..... Is anyone out there that can tell me how many amps circuit breaker they need to sustain that kind of electrical demand all at once, or is more to it??


    Thanks
    what happened?

  3. #3
    Join Date
    Dec 2009
    Posts
    6

    Post Re: circuit breaker upgrade

    To NEC

    Oops!Good question, the breaker trips constantly, it seems that they can not run too many appliances simultaneously, obviously i don't think they should, but within reason, let say what will it take to run a microvawe, two pc's and the clothes dryer at the same time, is this a question of amps? or is it a case of feeding on the same line going to the breaker?

    Thanks for reply RPL

  4. #4
    Join Date
    Dec 2009
    Location
    Alpharetta, Ga
    Posts
    55

    Default Re: circuit breaker upgrade

    Most appliances list the actually demand on them. Its usually a silver stamp or sticker located on the side or back. It will say the watts (in thousands "k") and the amps. Use this to determine what you can plug in. Most older homes need additional branch circuits for modern day use.

  5. #5
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,774

    Default Re: circuit breaker upgrade

    Dryer should be on a 240 volt circuit, microwave should be on its own circuit. You should never change breakers to a higher value without upgrading wiring. The breaker is sized to the existing wiring to prevent fires.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  6. #6
    Join Date
    Feb 2009
    Posts
    693

    Default Re: circuit breaker upgrade

    Quote Originally Posted by JLMCDANIEL View Post
    Dryer should be on a 240 volt circuit, microwave should be on its own circuit. You should never change breakers to a higher value without upgrading wiring. The breaker is sized to the existing wiring to prevent fires.
    Jack
    Ditto.............

  7. #7
    Join Date
    Jan 2010
    Posts
    6

    Default Re: circuit breaker upgrade

    Please correct me if I am wrong here. My impression is this: most old houses had 60 amp service (which, in the best estimation you can make without seeing anything, it sounds like you have). Later, this needed to be upgraded to 100 amp. In modern houses, 200 amp is gradually becoming the standard, even in smaller homes.

    As someone already mentioned, it looks like you're going to have to put in a lot more circuits if so many appliances, etc, are on the same circuits (and who wired the house? You better call in a licensed electrician, which you would have to do anyway to upgrade a panel). If so, in my humble opinion, upgrading to a 200 amp instead of going for 100 would probably make the most sense.

    Just remember, however, that pulling a permit may mean you will need to bring other electric up to code (GFCI outlets near water, etc), but code is there for a reason.

    Another thing to remember is that blowing fuses on occasion is not a big deal; however, in that house, you may have a problem that could lead to something serious, perhaps even when your son is asleep. I would not hesitate to do everything you can to make sure that electrical system is safe. Please don't underestimate electricity.

    Updating a panel will cost you in the low ks.

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