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#182650 - 12/05/08 10:40 AM Neutral through breaker?
maintenanceguy Offline

Registered: 12/02/01
Posts: 303
Loc: Southern NJ, USA
I'm sitting here reading the tech data sheet for a Siemens type P1 panelboard. I noticed that one of the available breakers listed (Type BGL) has a note #2. Looking at the bottom of the page, note #2 reads:

"Two pole breaker is one phase and neutral, Three pole breaker is two phases and neutral."

What does that mean? I don't have this panel or plan to order it, I just wonder what such a panel would be used for.

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#182652 - 12/05/08 10:55 AM Re: Neutral through breaker? [Re: maintenanceguy]
EV607797 Offline

Registered: 10/25/06
Posts: 756
Loc: Fredericksburg, VA, USA
I has been a long time, but I seem to recall something similar being required for gasoline pumps. I haven't worked with that stuff in years, so don't quote me on that.

"But the guy at Home Depot said it would work."

#182661 - 12/05/08 03:06 PM Re: Neutral through breaker? [Re: EV607797]
HotLine1 Offline


Registered: 04/03/02
Posts: 6791
Loc: Brick, NJ USA
That may be the panel that the AFCI's go into that do NOT come with neutral pigtail, only a load neut/line termination.

Time permitting, I have to read more on this

#182663 - 12/05/08 04:22 PM Re: Neutral through breaker? [Re: HotLine1]
wire_twister Offline

Registered: 07/25/07
Posts: 265
Loc: Georgia USA
Possibly for shunt trip breakers??

Life is tough, Life is tougher when you are stupid

#182674 - 12/06/08 08:13 AM Re: Neutral through breaker? [Re: wire_twister]
NORCAL Offline

Registered: 09/25/02
Posts: 805
It's where a neutral is req. to be switched, and the accessory requires one additional pole space just like a shunt trip.

#182687 - 12/06/08 03:11 PM Re: Neutral through breaker? [Re: maintenanceguy]
walrus Offline

Registered: 07/25/02
Posts: 671
Loc: Bangor Me. USA
Its a switched neutral 2 or 3 pole breaker, used to break all conductors. Its just a switch on the neutral side as far as I know. Use them all the time in gasoline installs

#182689 - 12/06/08 03:35 PM Re: Neutral through breaker? [Re: maintenanceguy]
kohli Offline
New Member

Registered: 03/10/08
Posts: 9
Loc: Ohlo Putnam Co
This breaker is to be used for gasoline pumps or other places where you need to brake the netural also when you turn off the circut

#182721 - 12/07/08 06:03 PM Re: Neutral through breaker? [Re: kohli]
pdh Offline

Registered: 01/20/05
Posts: 354
They should just run the pumps on 2-wire 240V and not worry about switching a neutral since there won't be one (at least in North America).


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