hardworkingstiff
Senior Member
- Location
- Wilmington, NC
What is the largest breaker I am allowed to install in a 225 amp, MB, SQD panel?
Thanks,
HWS
Thanks,
HWS
Largest breaker
- Thread starter hardworkingstiff
- Start date
- Status
bphgravity
Senior Member
- Location
- Florida
Re: Largest breaker
225 ampere.
225 ampere.
- Location
- Massachusetts
Re: Largest breaker
225
225
paul
Senior Member
- Location
- Snohomish, WA
Re: Largest breaker
QO and QOB type breakers that are 150, 200 and 225 amps are available. They take up two spaces per pole.
QO and QOB type breakers that are 150, 200 and 225 amps are available. They take up two spaces per pole.
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
Re: Largest breaker
WOW, y'all sure are fast.
WOW, y'all sure are fast.
- Location
- Massachusetts
Re: Largest breaker
You did not say plug in or bolt on, if it is bolt on anything larger than 100 will need a sub feed kit.
You did not say plug in or bolt on, if it is bolt on anything larger than 100 will need a sub feed kit.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Re: Largest breaker
Please elaborate.
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
Re: Largest breaker
A friend of mine has a welding shop next to his house out in the country. He did not get a permit for the shop, and wired it himself. He wants to pull power from his house. I wrestling with whether to do this or not. He really should have a 200 amp service for what he wants to do, but he can't have his building inspected. I use his services to build Aluminum panel stands for the docks I work on so it complicates matters. I don't like working w/out a permit and I've told him if I decide to do it I would have to completely rewire his shop. The part I have a problem with (besides no permit) is pulling the power from his house panel.
Actually, I thought I remembered a post in here a couple of months ago when someone had mentioned a % of the MB that you could not exceed. I guess I remembered wrong.
A friend of mine has a welding shop next to his house out in the country. He did not get a permit for the shop, and wired it himself. He wants to pull power from his house. I wrestling with whether to do this or not. He really should have a 200 amp service for what he wants to do, but he can't have his building inspected. I use his services to build Aluminum panel stands for the docks I work on so it complicates matters. I don't like working w/out a permit and I've told him if I decide to do it I would have to completely rewire his shop. The part I have a problem with (besides no permit) is pulling the power from his house panel.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
Re: Largest breaker
Actually you can mount the largest breaker that is listed by the manufacturer.
For QO that would be 150A.
For NQOD with subfeed capability it would be 225A
For I-Line HCM family it would be 250A
Actually you can mount the largest breaker that is listed by the manufacturer.
For QO that would be 150A.
For NQOD with subfeed capability it would be 225A
For I-Line HCM family it would be 250A
- Status