ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Recent Posts
How's Florida doing with Hurricane Ian?
by Bill Addiss - 09/28/22 12:41 PM
Tough being a lineman's kid
by Bill Addiss - 09/28/22 12:39 PM
GFCI's pops in large numbers
by dsk - 09/26/22 04:35 AM
AFCI’s Revisited
by sparky - 09/24/22 09:58 AM
NFPA Price Increase Coming
by Bill Addiss - 09/23/22 02:22 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 43 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#221933 09/22/22 01:25 PM
Joined: Feb 2010
Posts: 7
New Member
Having trouble with Siemens plug on neutral GFCI CIRCUIT BREAKERS. These are tripping as soon as I connect any load, even my LED work light. My supply house & several Chief Inspectors are telling me there are no reported problems, but other contractors are telling me they change them out after inspections( I don't like that solution). 1 inspector suggested changing brands which means changing my primary supplier. All input would be appreciated.

Joined: Jul 2004
Posts: 9,745
Likes: 13
Is this one circuit or several circuits. This can be caused by a down stream neutral to ground connection. That tends to happen in those over stuffed ceiling boxes as often as anything. You can't get all the neutrals under a big wirenut without some copper showing and it gets grounded.
As soon as you put a load on it, some of the current is diverted to ground and trips the GFCI. A regular breaker doesn't see anything wrong. They also don't like multiwire circuits but that usually needs 2 loads, one on each ungrounded conductor to make it trip.

Greg Fretwell

Link Copied to Clipboard

Tools for Electricians
Tools for Electricians

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 264
Joined: February 2013
Top Posters(30 Days)
dsk 3
Popular Topics(Views)
297,508 Are you busy
228,324 Re: Forum
213,206 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5