Bulletin 105 Reversing Starters

The Allen-Bradley Bulletin 105 family comprises factory-assembled reversing starters and companion power wiring kits designed to control three-phase motors in forward/reverse applications. Reversing starter catalog numbers follow a structured format: the prefix 105-C indicates a complete reversing starter assembly, followed by a current-size code (e.g., 09 = 9 A, 12 = 12 A, 30 = 30 A, 37 = 37 A), then enclosure and control voltage characters, and optional suffix codes designating overload relay type, auxiliary contacts, and wiring options. The -OLR suffix denotes configurations supplied without an overload relay. Enclosure ratings span from IP42/NEMA 1 metal (indoor) to IP66/NEMA 3/4/12 metal for harsh or washdown environments. Power wiring kits — prefixed 105-PW — are sold separately by ampere rating (16 A through 97 A) and simplify field installation between paired contactors. Notable stocked assemblies include the 105-C09ABJ-A2E-4GW-6P (9 A, auto electronic overload, NEMA 1) and the 105-C09FBE1C-6P (9 A, IP66/NEMA 3/4/12 metal enclosure). With 21 catalog numbers available, the Bulletin 105 family covers a broad range of motor-reversal requirements from 9 A to 97 A.