The Siemens 3RA1110-1GC15-1AF0 is a SIRIUS non-fused load feeder configured as a direct starter, size S00. It's a pre-assembled combination of a contactor, overload relay, and short-circuit protection — in this case the supplied components are contactor 3RT1015-1AF01, link module 3RA1911-1AA00, circuit-breaker 3RV1011-1GA10, and busbar adapter 8US1051-5DM07. That means one order code gets you a ready-to-mount motor start-and-protect package for a 2.2 kW motor at 400 V, without piecing together separate devices.
This load feeder snaps directly onto 40 mm busbar systems — the busbar center-to-center spacing is 40 mm. That's a standard metric busbar grid, so it fits common distribution panels without extra adapters. Dimensions are 203 mm high, 45 mm wide, and 128 mm deep. Clearance requirements: 20 mm upward, 10 mm forward, 9 mm backward, 0 mm downward, and 20 mm at the sides. The 45 mm width (roughly 2.5 module spaces on a 18 mm grid) means it occupies minimal rail space for a fully integrated starter.
Wiring and environmental limits
Main contact wiring accepts solid or stranded conductors from 0.5 to 4 mm², with dual terminals handling 2x (0.75 to 2.5 mm²). AWG equivalents are 2x (18 to 14) for the main contacts. That covers standard motor power wiring up to about 4 mm² — adequate for the 2.2 kW rating. Shock resistance is 9.8g.