Circuit breaker handle attachments

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Old 10-16-16, 08:28 PM
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Circuit breaker handle attachments

Google might haven't answered this for me but in the attached pictures, the screw attachments to the breaker are code compliant in that they will still allow the breaker to trip?

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Correct in that they are there to prevent the uninformed from shutting off a certain circuit?
 
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Old 10-16-16, 08:35 PM
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That is correct. Those breakers are considered "locked on".

The breaker will still trip even though the handle is locked on.
You'd need to remove the lock, turn the breaker off and then back on.

You'll usually find them on alarm systems and sometimes dedicated refrigeration lines.

On edit:
Looking back at the picture..... is this panel in a home ?
If yes.... why are so many breakers locked ?
I don't consider that a plus in a home situation as the breaker can't be turned off quickly in an emergency situation.

In commercial applications.... it's very common.
 
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Old 10-16-16, 08:55 PM
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It's in commercial application. Had a fire in an outside sign, fire department came out and said they weren't to code. I'll still have to clear with building department prior to reactivating sign, just wanted to make sure of my ducks.

Thanks for the reply...
 
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Old 10-16-16, 09:14 PM
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They may have meant the quantity of them wasn't to code. In a commercial building.... we are required to put a breaker lock on fire alarm systems.
 
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