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Joined: Apr 2002
Posts: 914
E
Member
We are required to use those or simlar devices as lock outs on appliances in some jurisdictions. The breaker will still function when install as locked on.

Joined: Sep 2004
Posts: 86
N
Member
That device can not be used for lockout. It does not allow for a lock to be attached. Easily removed with a dime. SqD carries a different device for lockout. The QO1LO just prevents a breaker from accidently being turned off, or on for that matter in a non maintenance situation. Unfortunately, in order to install or remove one you have to turn the adjacent breaker off and if it is unmarked your subject to making someone mad when their computer dumps. Learned from experience.
Ron

Joined: Jul 2002
Posts: 8,443
Likes: 3
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D'oh!,
I never realised that the breakers had a trip free mechanism in them over there.
Sorry guys. [Linked Image] [Linked Image]

Joined: Nov 2000
Posts: 2,148
R
Member
Quote
Not that they will trip, but "trip free" (Very important!), not all breakers will trip free, meaning that the handle can be held closed and the breaker mechinism will still trip free of the handle. Not all breakers will.
If they aren't "trip free", they must be very old. The requirement has been in 240-80 since the '68 code or before. Maybe much before that. The oldest code I have is the '71 and there is no vertical change line next to that section in the 71 code.
Don

edited to correct spelling

[This message has been edited by resqcapt19 (edited 10-21-2004).]


Don(resqcapt19)
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