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'screwed' main (literally)


ctgo4it
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Originally posted by ctgo4it

I saw this on a main disconnect this week. i don't recall ever seeing anything like this. Anyone ever see this, or know why it's there?

Thank you

As Charlie said, it's supposed to be there.

Whenever you have a backfed breaker -- when the power enters through the breaker's terminals and then goes to the busbar -- the breaker is supposed to be secured to the panel so that you can't just pull it out. If you could, it'd be dangerous to have a live breaker flopping around on the end of some wires.

The screw you saw is one way to do it. Another was is to use a proprietary clip that the manufacturer provides for just this purpose. These are sometimes hard to see.

Here's a picture of one of these hard-to-see clips.

- Jim Katen, Oregon

Image Insert:

2007621222949_Backfed%20Main.jpg

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