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 kit will work with LAL, LHL and Q4L circuit breakers. Circuit breakers can be 2 or 3 pole with a frame size of 400A. Proper circuit breaker must be ordered separately. Kit contains a 6 inch long handle that is rated NEMA 1/3R/12. The kit contains a standard shaft. The mounting depth of this kit is 6.31 to 10.875 inches from the circuit breaker mounting surface, control panel, to outside of enclosure door. Kit is UL component recognized and CSA certified.