Screw in Breaker

[Paul W. Abernathy]

lol...usually it only screws down to the rail James...lol...but nice thought..thehehe

yes jason...very well done and YEP you understood where I was going with it....all in the education baby.....THANKS guys for jumping in....

You all know where I was going...I have become TRANSPARENT...lol

[jtedesco1]

Where is David Valley? What's happening in Massachusetts as far as home inspectors go? This picture was originally posted long ago, and is in the archives with the others.

http://www.nachi.org/bbsystem/usrimages/

[smcarthur]

Originally Posted by Greg Fretwell

You can screw them all down if you want. It is only required if the breaker is backfed. Most commercial manufacturers make panels where all the breakers screw to the bus, no stabs or "U" clips. It certainly helps the reliability.

A hold down device on a back fed main breaker is different than a bolt-in breaker. True, most commercial panels have bolt-in style breaker and some will accept either bolt-in or snap in, but that does not qualify as a hold down device. Hold down devices are designed for that purpose and that purpose only and are available as an accessory to some main lug panels to allow them to be used when a main breaker is needed or desired. The hold down device are designed so that you may not remove the main breaker by simply snapping it out of the panel. Special note to all HI's: A back fed panel has the hot wire attached to what is normally the output side of the breaker, so that even if the breaker is tripped the output sdie is still hot! So be careful out there guys.

[scosta]

Thanks for all the help guys.

Steve