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-   -   What is the purpose of a 20 amp circuit breaker? (https://www.askmehelpdesk.com/showthread.php?t=603038)

  • Oct 11, 2011, 07:30 PM
    dee134
    What is the purpose of a 20 amp circuit breaker?
    I'm setting up some power tools in my basement, Band Saw, Table Saw, etc. I would like to add outlets to power these tools and be on one circuit, I was wondering if a 20 amp circuit would be sufficient instead of a 15 amp?
  • Oct 11, 2011, 07:50 PM
    donf
    You need to read the electrical requirements for the tool in question.

    Given the number of suggested in your comments, I would only recommend a 20 Amp circuit.

    In fact, I would suggest you install at least two (2) such circuits.

    Bear in mind, that these circuits, if they are in an unfinished basement have to be GFCI protected.
  • Oct 11, 2011, 08:04 PM
    dee134
    The tools I will be using in my basement requires normal household current
    The tools I will be using in my basement, Bandsaw, Table Saw and Miter Saw require normal household current which would be 15 amps. I was wondering if 20 amps would be too much for these tools?
  • Oct 11, 2011, 08:12 PM
    joypulv
    No, you want 20 amps.
  • Oct 12, 2011, 03:43 AM
    stanfortyman
    Quote:

    Originally Posted by dee134 View Post
    The tools I will be using in my basement, Bandsaw, Table Saw and Miter Saw require normal household current which would be 15 amps. I was wondering if 20 amps would be too much for these tools?

    There is no "normal" household current.

    Circuit current is an available amount. A 20A circuit simply has 5 more amps available than a 15A circuit.
    There are codes in place telling us what types of circuits are allowed on certain size circuits (15, 20, 30, 40, etc).

    Standard 15/20 amp 120v receptacles are ONLY allowed on 15 or 20A circuits.
  • Oct 12, 2011, 08:59 AM
    tkrussell
    I suspect that Dee134 has tools with a standard 15 amp plug, which appears to be "normal".

    Since each tool has a 15 amp plug, each will run on a 15 amp circuit, probably each alone at one time.

    The instructions of each tool will tell you what electrical requirements are needed to oeprate properly.

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