200 amp sub fed from 200 amp main?

[shaggyant]

Is there a code against this? I haven’t been able to find anything definitive in the code book regarding this. Schneider makes the QO2200 quad size breaker that will fit in my main panel.

 

[Norcal]

Is the panel listed for the desired breaker? Wire bending space is going to be real tight. Either one is a deal breaker if not listed for that panel or does not have the required wire bending space.

 

[n20junkie]

You lokely won't find a stab on breaker that high.

For me, a quad breaker rated at 150 amps was as good as it got for stab on's.

 

[shaggyant]

You lokely won't find a stab on breaker that high.

For me, a quad breaker rated at 150 amps was as good as it got for stab on's.

the breaker in question.

https://www.schneider-electric.us/e...ni-cb-200-a-2p-120-240-v-10-ka-plug-in-mount/

 

[shaggyant]

Is the panel listed for the desired breaker? Wire bending space is going to be real tight. Either one is a deal breaker if not listed for that panel or does not have the required wire bending space.

The breaker is made with angled terminals so bending isn’t necessary. I attached a photo of the sticker in my panel that says it can accept the 4 wide breakers. Take a look and tell me what you think.

 

[Norcal]

Using a phone so photos are not clear.

 

[shaggyant]

Using a phone so photos are not clear.

The label is on the side of the panel and is curling on the edges so it’s hard to get a good angle. I will try again when I get home tonight.

 

[pattenp]

There should be a listing for the max amperage allowed for branch breakers.

 

[TRWham]

Whether it is code compliant or not (I believe it most likely would be if the panel is listed for that breaker), I imagine it will be very difficult to pull off. You will lose 4 spaces in the panel and need to route some large, stiff, expensive cables through the panel, the wall and to wherever the sub is going to be mounted. I would take a long, careful look at whether I really needed a 200A feeder to the sub-panel.

I ran a full load simulation on my house not long ago. With everything I could reasonably get running, including all lights, 7.5 HP compressor, electric oven, dryer and 2 HVAC units, it only pulled 60 Amps on a 150 Amp service. The only things not running at the time were my welder and 250W per channel audio amp. Based on that, I am satisfied I'm not going to run out of current any time soon even if I were sandblasting, welding, drying clothes and baking cookies simultaneously while cranking DSotM at 11.

 

[wyliesdiesels]

There should be a listing on the label that tells you what the max current per stab is.

But lets back up a step or 2.

What are the loads you will be running?

What is this feeding?

Have you done a load calc?

Are you sure you need 200a? Thats an awful lot of power.

 

[alfredeneuman]

It's actually a 4 pole breaker with a single handle so each stab will carry 100 amps.

 

[Radix2]

If that breaker is really about $500, I think I would see if there is another way to do what you want?

Make the new panel the main and feed this one as a sub?