Commercial work with stab on panels

[hurk27]

standard QO's will do the same thing.

Actually, the only time I have had a problem with breakers popping out, is ether they are not seated against the back rail correctly, or the panel is tweaked out of square from front to back corner to corner, well then there is the ones where the wrong breaker is installed, like a CTL type tandem forced into a non-tandem space

 

[hurk27]

The worst breakers I've ever seen for "popping" out of a bus have been CH. For the premium price you have to pay for them, you'd think they'd have a better design.

Then you should look for a half space GE panel, touch one and they all fall out

 

[quogueelectric]

Guys,

Is there any particular reasons for always using bolt on panelboards in commercial and industrial work? Is this a code or standard or just architect and engineers preference? It is so much cheeper to use stab on panels like the same you would use for residential. This is just something I have been thinking about.... Thanks for any opinions and feedback!

Bob

I have seen guys use stab on panels for industrial pump motor loads in a chem refinery. I went in about 3 yrs later and the bus connections were almost completely destroyed from the motor loads starting current. It is kind of like a backstabbed receptacle some work fine for years with no problem and some self destruct under heavy loads.

 

[StreamlineGT]

How we roll at Sreamline Headquarters (my house)....

Biggest waste of money EVAR!! I bought them for no knockouts, but I just finished a stab-in GE service the same way with the same results. Never again will I spend $100 on a bolt in AFCI.