Service entrance panel

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  #1  
Old 10-13-07, 11:36 AM
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Service entrance panel

Does the main breaker always have to be at the top?

Can you turn the panel upside down and have the entrance cable lugs and main breaker on the bottom?
 
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Old 10-13-07, 11:55 AM
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If the main breaker moves side-to-side you can mount it either way.

If the main breaker moves up and down, DOWN must be OFF.
 
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Old 10-13-07, 12:00 PM
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What you are bringing up is mostly a labeling issue, since electricity has no way of knowing if it is flowing up or down.

If the mfg has labeled the panel with a clear TOP then it must be installed that way. If not you can turn it upside down.

In addition, if the main breaker is oriented so that up is on and down is off, this must be kept. If the main breaker is installed sideways it does not matter.

Sometimes the "enclosure" (metal box) will be maked with a TOP label, but the internal "panel" (electrical guts) can be turned upside down. Part of the cover/door assembly may have to be adjusted as well.
 
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Old 10-13-07, 04:47 PM
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Originally Posted by Speedy Petey View Post
If the main breaker moves side-to-side you can mount it either way.

If the main breaker moves up and down, DOWN must be OFF.
I "heard" that people install the main breaker so the DOWN position is "ON" and UP is off to prevent accidentally hitting the breaker too "off" when pulling the cover off.

This if course, was hearsay, but is there any truth to it?
 
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Old 10-13-07, 05:48 PM
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I've never heard that philosophy. Quite illegal though.
 
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Old 10-13-07, 05:56 PM
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I figured, but had to ask..
 
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