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Thread: Siemens Two Pole AFCI Circuit Breaker

  1. #21
    Join Date
    Mar 2007
    Location
    Valdosta, GA
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    3,832
    Quote Originally Posted by chris1971 View Post
    Do you have specs on the Siemens that I can look at? I called tech support a few years ago with Sq. D and they told me and sent information saying Sq. D would not work on 208 volts.
    That's interesting. I've had to install both Eaton and Square D 120/240 rated GFI breakers on 208v pools, and both manufacturers told me they work. I wonder what's different in the AFCI's?


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  2. #22
    Join Date
    Mar 2003
    Location
    New England
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    13,065
    Quote Originally Posted by brantmacga View Post
    That's interesting. I've had to install both Eaton and Square D 120/240 rated GFI breakers on 208v pools, and both manufacturers told me they work. I wonder what's different in the AFCI's?
    More complicated circuitry in an AFCI, so they made it to run on one voltage only.

  3. #23
    Join Date
    Nov 2015
    Location
    Ellington, CT
    Posts
    26
    The neutral connects on one of the two breakers (doesn't matter which one) The conductor from the breaker lands like any other AFCI. Provided you use the handle tie, it works fairly well.

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  4. #24
    Join Date
    Dec 2016
    Location
    Minneapolis, MN
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    304
    Quote Originally Posted by Dennis Alwon View Post
    So what do all the apartments that are fed with 3 phases Y services do for afci protection
    To answer Dennis's original question, you are SOL in most situations. Better hope it's wired with conduit, an easy fish, or you can make it work with an AFCI device.

  5. #25
    Join Date
    Dec 2012
    Location
    Placerville, CA, USA
    Posts
    18,377
    Quote Originally Posted by brantmacga View Post
    But how do you connect the neutral of a MWBC?

    Since that GE breaker does not include any GF detection, you just connect the common neutral to one of the two breakers.

    http://structuretech1.com/wp-content...tral-Guide.pdf

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