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#182650 12/05/08 01:40 PM
Joined: Dec 2001
Posts: 300
M
Member
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.

Joined: Oct 2006
Posts: 745
E
Member
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.


---Ed---

"But the guy at Home Depot said it would work."
Joined: Apr 2002
Posts: 7,333
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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


John
Joined: Jul 2007
Posts: 265
W
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Possibly for shunt trip breakers??


Jimmy

Life is tough, Life is tougher when you are stupid
Joined: Sep 2002
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Likes: 1
N
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It's where a neutral is req. to be switched, and the accessory requires one additional pole space just like a shunt trip.

Joined: Jul 2002
Posts: 680
W
Member
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

Joined: Mar 2008
Posts: 9
K
New Member
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

Joined: Jan 2005
Posts: 354
P
pdh Offline
Member
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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