Molded Case Circuit Breakers. External Accessories. Door-Mounted Operators. TDM Handle Operating Mechanisms, Door Mounted. Complete mechanism with handle. UL listed, E-57253. Box Depth in inches: 5 5/8 - 15 5/8. Breaker Type: SG600 (GEH-5653). Installation instructions publication number. Complete Mechanism with NEMA 1, 3R, 12 Handle. Handle assembly and operating mechanism separately packaged.