This listing is for 1 busbar adapter mounting kit for a two pole circuit breaker. The kit contains the following parts:
Part No. :534447 -busbar with 3/8" x 1" bolts and 4 holes on 5/8" center
Part No. :534448 -busbar with 3/8" holes for bolts and 4 holes on 5/8"center
215111100,228567100,228557100,227646600,22640400,215111300,214112100,214110100 as seen in pictures
All of the mounting hardware including flat washers, lock washers, nuts and bolts included.
Emerson, GE, Lineage breakers of the two pole type should work with these mounting kits.