Breaker Torqueing

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  #1  
Old 03-15-14, 02:46 PM
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Breaker Torqueing

I have a square d panel that uses HOM breakers.

Should the screws on the breakers be torqued down extremely tight, where you wouldn't be able to turn them anymore or would it be normal to have a little room left to torque a breaker even when its tight enough?
 
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Old 03-15-14, 05:28 PM
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Breakers usually have torque specs listed on the side of them...
 
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Old 03-15-14, 05:49 PM
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Tight is tight....why would you want to leave any extra slack? Yeah...they probably have specs...but not many people have calibrated drivers in their toolbox.
 
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Old 03-15-14, 06:12 PM
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Too tight is just as bad or worse than too tight. Read the required torque on the breaker.
 
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Old 03-15-14, 06:19 PM
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I don't own a torque screwdriver nor have I ever seen an electrician use one...
 
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Old 03-15-14, 06:47 PM
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It is hard to describe in words how tight to make the screws. They need to be tight, but do not use tremendous force as that will strip the threads.
 
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Old 03-17-14, 03:15 PM
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Reason I ask, I had new circuit breaker box put in. One of the circuits was flickering and I thought I would tighten that breaker down to see how tight the electricians made the connections.

I was able to get two twists of the wrist of tight on the screw and I could have gone more. So I called the installer back and watched them tighten every screw in the panel and every one of them could turn the wrist 3 or 4 more times.... of course they weren't going to admit they were loose but I sure believe they were....
 
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