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Joined: Dec 2001
Posts: 300
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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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Joined: Oct 2006
Posts: 745
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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."
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Joined: Apr 2002
Posts: 7,323 Likes: 7
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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
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Joined: Jul 2007
Posts: 265
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Possibly for shunt trip breakers??
Jimmy
Life is tough, Life is tougher when you are stupid
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Joined: Sep 2002
Posts: 929 Likes: 1
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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.
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Joined: Jul 2002
Posts: 680
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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
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Joined: Mar 2008
Posts: 9
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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
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Joined: Jan 2005
Posts: 354
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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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Posts: 2,722
Joined: October 2000
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