Type L door mounted, variable depth operating mechanisms feature heavy duty, all metal construction with trip indication. Operating mechanism can be padlocked in the Off position when the enclosure door is open. Handle assemblies can be locked Off with up to three padlocks, which also locks the door closed This operating mechanism will work with PowerPact B circuit breakers. Mechanism is used with 2 or 3 pole breakers with a frame size of 125A. Proper circuit breaker must be ordered separately. Kit contains a 3 inch long handle that is rated NEMA 1/3R/12. The kit contains a long shaft. The mounting depth of this kit is 5.5 to 21.38 inches from the circuit breaker mounting surface, control panel, to outside of enclosure door. Mechanism is UL Component Recognized and CSA certified.