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Crystal Lake, IL
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Lafayette, Louisiana
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 240-volt AFCI breaker
[#2] Posted: 01/09/2011 - 07:13:55 AM |  |  |
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Never heard of a 240V AFCI breaker, but if it provides AFCI protection to a subpanel and is listed for use as such, I don't see any problem with it.
Marc
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"If Guam gets too overpopulated, it might tip over."
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Kenmore, WA
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240-volt AFCI breaker
[#3] Posted: 01/09/2011 - 09:52:21 AM | | |
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I'm thinking it's probably two AFCI's paired together with a tie bar and wired like a MWBC.
ONE TEAM - ONE FIGHT!!!
Mike
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Kenmore, WA
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240-volt AFCI breaker
[#4] Posted: 01/09/2011 - 10:20:52 AM | | |
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Hi,
Apparently 240 AFCI's are out there. Page I-15 of the Eaton Cutler-Hammer catalog has a whole selection for residential use.
ONE TEAM - ONE FIGHT!!!
Mike
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Louisville, KY
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240-volt AFCI breaker
[#5] Posted: 01/09/2011 - 4:41:46 PM | | |
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As I was browsing HD electrical isle last night, I had to stop and look in amazement of the AFCI's hanging in blister packs for 39.00 each. And not 2 ft below was regular for 6.00 bucks....lol
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ABI Home Services
Louisville KY Home Inspector
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Collins, NY
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240-volt AFCI breaker
[#6] Posted: 01/09/2011 - 6:05:31 PM | | |
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Job security
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Tom
http://clearcreekhomeinspection.com/
Life is tough enough as it is, it's tougher when your stupid. Don't do stupid things.
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Dallas, TX
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240-volt AFCI breaker
[#7] Posted: 01/09/2011 - 6:11:42 PM | | |
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and ....
Likely "Made in China or Mexico" ....
That could be crass of me saying that as the OEM product may be made offshore as well.
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Cheers,
Nolan E. Kienitz
Nolan's Inspections, LLC
Dallas Home Inspections
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Collins, NY
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240-volt AFCI breaker
[#8] Posted: 01/09/2011 - 6:46:51 PM | | |
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Nolan,
This is the US of A, we only make hamburgers. Everything else is made offshore.
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Tom
http://clearcreekhomeinspection.com/
Life is tough enough as it is, it's tougher when your stupid. Don't do stupid things.
Dr Joe Lstiburek |
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Marin County, CA
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240-volt AFCI breaker
[#9] Posted: 01/09/2011 - 9:55:47 PM | | |
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It's been a few months since I've researched this topic. Last I looked, Eaton / Cutler-Hammer was still peddling their branch-feeder style AFCIs that were rated for multiwire circuits. They haven't been allowed by code since 1/1/2008, but that hasn't stopped them from selling them. They do not meet the requirement that AFCIs comply to the UL "combination" standard.
Those first generation Cutler Hammer AFCIs were designed for multiwire circuits and include a neutral. Because AFCIs also have ground-fault detection, you can't take 2 separate ordinary AFCIs and apply them to a multiwire circuit. In fact, most of the reported incidences of "nuisance tripping" in multiwire circuits are a result of neutrals getting connected somewhere down the line.
Siemens makes a legitimate 2-pole AFCI that works for multiwire circuits and meets current code. Square D does not make one. General Electric makes a 2-pole AFCI that will work on multiwire circuits, but only because they disabled the ground-fault detection and cut off the pigtailed neutral. Cutler-Hammer just keeps trying to clear their shelves of the old non-code-complying product.
Douglas Hansen
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Douglas Hansen
www.codecheck.com
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Crystal Lake, IL
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240-volt AFCI breaker
[#10] Posted: 01/10/2011 - 05:34:49 AM | | |
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Thanks for that, Doug. This was a GE breaker.
Why a 240-V though instead of individual 120's? Cost savings (again, a high-rise with hundreds of condos)?
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