black00lightning
Well-known member
I purchased some Siemens 120v 20a and 240v 30a breakers based on the stores "expert" opinion for a 200A Square D box for my new workshop. Any problems or should I return them?

told u that needs to be taken out back behind the store and spanked! 
They won't fit at all in a million years.
Return them and cuss out the "expert" that gave you that info.
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Is there a list of the correct breakers and are they all Square D? Excuse my ignorance, I've done some electrical but this is my first project where I have to do all the circuits. I also will have to finish the roughed in full bath, insulation, sheetrock, painting and flooring in my woodshop.
If its a Square D "HomeLine" panel, (Yes) they will fit, but NO, it is not a listed breaker for that panel (If its getting inspected)
It will work, it will not pass inspection
Actually they will not fit.Only square d qo breakers will fit in that panel period,The homeline panels will fit other breakers but it shouldn't be done except in a temp/emergency situation.![]()
Actually they will not fit.
Homeline have an extra tab on the buss bar to reject pretty much every other 1" style breakers, with the exception of Cutler-Hammer CL series, which are classified breakers to legally fit into most 1" breaker style panels.
I have seen other breakers put into HOM panels and it's SAD that someone would leave it that way. They stick way out and even prevent the cover from being put on properly.
Now, did the guy proclaim to be an expert or was that read in to this?
I come across homeline panels from time to time with other peoples breakers,I see homeline breakers in other peoples panels a lot more often.
And homeline breakers are not classified to be used in ANY panel, just listed for SQ D panels only, the SQ D company is not fond of classified breakers being used in their panels and if someone was of that opinion makes sense they would not submit the breakers for testing to allow them to be classified for competitive makes.
The whole classified / listed game is a bunch of BS, if they fit, they should be listed for competitive makes or be made non-interchangeable / not compatible with other makes, at least with load centers.


Most of the help at orange means well, they just get people lap in to the areas that are guessing and often give the customer what they ask for.
It can be a bigger problem when sending others shopping. Send a note, says 30A 4 wire dryer recept. It must be an upsell technique and sometimes return it due to the fact but I get 2, one 30 and one 50 in case I didn't know which one I wanted.