PWC Repair
Well-known member
I'm trying to decide if I want to buy a new panel or use the one that was given to me used. What.s the difference in type BR, CH, or QO??
Panel I have is QO style Square D.
Panel I have is QO style Square D.
I'm trying to decide if I want to buy a new panel or use the one that was given to me used. What.s the difference in type BR, CH, or QO??
Panel I have is QO style Square D.
I'm trying to decide if I want to buy a new panel or use the one that was given to me used. What.s the difference in type BR, CH, or QO??
Panel I have is QO style Square D.
The free QO panel is in good shape, and he gave me enough single and double breakers to fill it and then some. It's a 125a with about 20 slots. I don't need all the slots, it's for my new shop, and it was free. I guess I'll just use it then. It came from a building that was remodeled and updated to 200a.
None of the local big stores carry the Siemens breakers.
Also since it is used: make sure it has the right cover and screws, and the label on the door is intact. If your shop is a separate structure then you need a main breaker in it. Also remove the bonding jumper and add ground bars separate from the neutrals.
Lastly - assume your service is single phase and the panel is single phase. or 3ø and 3ø
Panel came with a 100 amp main. It is single phase. It will be a sub panel. I planned on running 4-4-4 to the shop (157ft away) and driving ground rods at the shop. Thats how my old house is set up, even though the grounds and neutrals are all on the same bar in my main house panel. Is this the correct way?
Only required if more than 6 breaker handles...but is nice to have regardless...
Yes, Homeline is prolific and the QO panels are more commercial now where we used to install them in homes when we rewired.
Not 100% true !I have the QO panel.....Nice panel....and you will always be able to get breakers for it.

If you need to start adding tandem breakers it's time for a bigger panel.
I'm amazed at how many 10-20 year old houses I go into and find half the panel filled with tandem breakers.![]()
New houses before the AFCI requirements being full of twin breakers, also.![]()
With heat, lights, air compressor, fan, and water well all running at once will be not quite 70 amps. More like 40 or less at any given time.No that is incorrect.
All new subpanels must have a 4-wire feeder with an isolated neutral bar. Grounding electrodes are also required.
The example of the main in your old house panel is not a good one because main service panels are the only place where neutrals and grounds SHOULD be bonded and thus have 3-wire feeds which is the service entrance.
Read #3 in this thread:
https://www.garagejournal.com/forum/showthread.php?t=356460
#4 al is limited to 65a.
Depending on your loads, even #2 al may be too small for 157'.
What loads will you have?
With heat, lights, air compressor, fan, and water well all running at once will be not quite 70 amps. More like 40 or less at any given time.
The diagrams are nice but i understand wiring pretty well. So what i wanted to do is actually fine just not to code any more. Well i guess I'll just run 4-4-4-6 then.....copper. Im not fond of aluminum wire.
I understand. I'm just thinking out loud that since millions of homes and sub panels are wired like that, AND they only changed it in '08............ I have to assume its because some ******* did something really stupid, then got a good lawyer who was also crooked, then they went to court with some windbag money grubbing dip$hit judge who wouldn't know anything about electrical if it bit him in the ***, and somebody got paid. Just like the lady that got burnt with her hot coffee, or the kid that got scalded when he stood on the open oven door when mommy was cooking so now they all come with an anti-tip bracket. I could go on and on about how frivolously stupid many lawsuits are and the damn judges allow it to happen........rant over.
Thank you for the help and i will run it to new code standards.
The free QO panel is in good shape, and he gave me enough single and double breakers to fill it and then some. It's a 125a with about 20 slots. I don't need all the slots, it's for my new shop, and it was free. I guess I'll just use it then. It came from a building that was remodeled and updated to 200a.