Wirenuts in breaker panel?

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  #1  
Old 02-24-14, 03:46 PM
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Wirenuts in breaker panel?

Are wirenut splices allowed in main circuit breaker panels?
 
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Old 02-24-14, 04:33 PM
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You are allowed to extend a wire inside the panel using wirenuts. That would include a wire(s) to a breaker, the neutral bar or the ground bar.

You are not allowed to use the panel as a splice point for external circuits.
In other words, you couldn't bring a switch lead in and splice it to a circuit thru the panel.
 
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Old 02-24-14, 04:55 PM
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Exactly what I was wondering about,thank you.

Can one wire enter the panel in one conduit and then loop unspliced into another conduit? And if that connection needed to be cut, can the now two wires be spliced in the panel?
 
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Old 02-24-14, 05:21 PM
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A correction on my part

2008 312.8 Allows a panel to contain splices as a junction box if the space requirements are met.
2014 312.8 Permits conductor to feed-thru, be spliced or tapping off to other enclosures.

Thanks to bahtah for setting me straight.
 

Last edited by PJmax; 02-24-14 at 08:02 PM.
  #5  
Old 02-25-14, 04:20 AM
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That's reassuring. Since I am in the process of either moving or replacing my panel I was concerned I was going to have to pull new wire or just splice it anyway and be done with it. The wire that passes thru on one conduit to the next (obviously the enclosre couldn't be removed because it passes thru unspliced) is a switch leg... Somebody got creative a long time ago.
 
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Old 02-25-14, 07:16 AM
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pj- thanks for the code references, I will pass them to my electrician.
rards- my wife and I thank you. Thanks for the PM's too, they were if great help... I promise to return your "Wiring Simplified" when I am done reading.
 
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Old 02-25-14, 07:23 AM
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Ardmi-

You can keep that copy of Wiring Simplified I sent. Be forwarned though its an older copy based on I think the 02' nec. I recently picked up a newer copy at the hardware store so I am happy to pass it along.

You might want to try this book too I got it at the library and it has lots of good information:

Wiring A House by Rex Caudwell
 
  #8  
Old 02-25-14, 09:47 AM
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Is the meter box the only enclosure where it's forbidden to splice or have other circuits pass through? I always thought that rule extended to the main breaker panel--glad to hear it doesn't.
 
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Old 02-25-14, 10:52 AM
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Just a note for the Maple Leaf members. CEC doesn't permit splices in the breaker box from what I have read here.
 
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Old 02-26-14, 06:36 AM
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I believe there is a also maximum fill percent that you can't go over. Probably not an issue unless you're planning on making a lot of splices in there.
 
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