ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Recent Posts
An impossible Support Violation
by gfretwell - 09/12/23 04:29 PM
How are you Jersey folks about the windmills?
by gfretwell - 09/08/23 02:21 PM
Having trouble logging in?
by Admin - 09/01/23 10:26 AM
New TikTok Challenge Posing Serious Risks
by iTacos - 08/28/23 10:04 AM
Mis-applying Codes
by gfretwell - 08/25/23 05:31 PM
New in the Gallery:
Few pics I found
Few pics I found
by timmp, August 15
Get Back to work, Keep Using it.
Get Back to work, Keep Using it.
by timmp, August 15
Who's Online Now
1 members (Scott35), 16 guests, and 13 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: 9,868
Likes: 25
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

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!
* * * * * * *

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


Member Spotlight
Posts: 201
Joined: April 2004
Top Posters(30 Days)
Popular Topics(Views)
311,074 Are you busy
237,472 Re: Forum
221,260 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5