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Old 07-30-2010, 10:45 AM   #1
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hardwired doorbells and GFIC


I just installed a hardwired doorbell (got sick of wireless needing new batteries every month.....)

its on our "outdoor" circuit... anything that is outdoor went on this when the house was built... which is GFIC protected..

now my questions


should the bell be GFIC protected?

should the bell be on its own circuit or is a generic outside circuit ok? All that is on it is is 4 outside outlets
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Old 07-30-2010, 12:06 PM   #2
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I thought you were going to say the GFCI tripped whenever someone rang the doorbell! -=chuckle=-
I do not believe it has to be on it's own circuit, nor on a GFCI, but it won't hurt it if it is.... and, of course, I could be wrong!

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Old 07-30-2010, 12:37 PM   #3
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Where did you mount the transformer? Apparently you have a junction box somewhere inside to do this.
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Old 07-30-2010, 01:01 PM   #4
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Quote:
Originally Posted by a7ecorsair View Post
Where did you mount the transformer? Apparently you have a junction box somewhere inside to do this.

Yes the Service entrance room has a line (20Amp 110v) going from a breaker marked as "Outside electical" on the panel into a two gang metal box which has a single GFIC outlet on it (mounted center of the box with a metal cover plate on it) then that on the side has one of the knockout's punched out and the transformer is mounted there and wired up to the Line side right now not the load side because I wasn't sure which one to use for this situation or if a transfomer like that should be on the GFIC side... was planning on moving it if I had to onto the load side... then the wires from the buttons and bells all come back to that area and terminate there and are wired from that point up
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Old 07-30-2010, 01:30 PM   #5
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I don't think it makes any difference if you are connected to line or load side of the GFCI. The low voltage wiring is isolated from the high voltage by the coil of the transformer.
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Old 07-30-2010, 01:32 PM   #6
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Originally Posted by rjniles View Post
I don't think it makes any difference if you are connected to line or load side of the GFCI. The low voltage wiring is isolated from the high voltage by the coil of the transformer.
Good to know, thanks. I just wanted to make sure I was up to code with this.
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