What are the differences between Powerpact B-frame and H-frame?

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Issue:
What is the advantage of using a B frame from an H frame?

Product Line:
Molded Case Circuit Breakers

Environment:
Powerpact B-Frame and H-frame Circuit Breakers

Resolution:
Powerpact B-frame
-available in 1, 2, 3, and 4 pole construction
-available up to 125A
-compatible with Everlink lugs
-rated 600Y/347V max. also covers 480 delta. Ex. BGL36100.
-also available in 480Y/277V max. (I-Line breaker only, with suffix "Y" and voltage code is 4 ,i.e. BGA34050Y)

Powerpact H-frame
-available in 2 and 3 pole construction only
-available up to 150A
-rated 600V delta.