120/240 volt 3 phase breakers

[Anytime Electric]

I am installing a 240v 200amp panel (with high leg) and wanted to know if this requires special breakers. I plan on using siemens bolt on. Can the breakers be type BL and do they need to be 22k a/c rated?

 

[LarryFine]

I am installing a 240v 200amp panel (with high leg) and wanted to know if this requires special breakers. I plan on using siemens bolt on. Can the breakers be type BL and do they need to be 22k a/c rated?

Many 3p breakers are rated for 120v line-to-ground and 240v line-to-line. With a high leg, you need a breaker rated only 240v, not 120/240v. They are common, but you have to make sure that's what you get.

 

[zog]

do they need to be 22k a/c rated?

That depends on your available fault current

 

[raider1]

That depends on your available fault current

Agreed, hopefully this information is readily avaliable for you on the plans. If not you might have to do an avaliable short circuit current study to find out.

Chris

 

[weressl]

I am installing a 240v 200amp panel (with high leg) and wanted to know if this requires special breakers. I plan on using siemens bolt on. Can the breakers be type BL and do they need to be 22k a/c rated?

Sounds like the most you need is 2 pole breakers. 120/240V two phase, three wire with grounded neutral?
The Utility should be able to tell you what the available SCA will be. (Unless it is coming from a single large transformer feeding multiple 200A panels, you would be well within the 22kA limit.)