The Siemens 3RA1110-1FA15-1AF0 is a SIRIUS non-fused load feeder configured as a direct starter, size S00, rated 1.5 kW at 400 V. It arrives as a pre-assembled combination of a 3RT1015-1AF01 contactor, a 3RV1011-1FA10 circuit breaker for short-circuit protection, and a 3RA1911-1AA00 link module — all on a 45 mm wide footprint that snaps onto a 35 mm standard rail. This is a self-contained motor-starting and protection package for a single three-phase load up to 1.5 kW at 400 V. The direct-starter design means the contactor closes straight across the line — no reduced-voltage starting. The supplied circuit breaker provides the short-circuit protection, so the feeder is non-fused: no separate fuse holders or fuse links to stock. The 1.5 kW rating at 400 V tells you the maximum motor size this feeder can switch in AC-3 duty; size S00 is the smallest frame in the SIRIUS family, suited for light-duty pumps, fans, and conveyors.
Dimensions: 45 mm wide, 159 mm high, 75 mm deep. Clearance requirements: 20 mm upward, 10 mm forward, 9 mm backward, 0 mm downward, 20 mm at the side. Shock resistance is 9.8 g. Conductor cross-sections accepted: solid or stranded 0.5 to 4 mm², and 2x (0.75 to 2.5 mm²) for daisy-chaining. AWG equivalents for main contacts: 2x (18 to 14). The product extension for auxiliary switches is available (product extension auxiliary switch: Yes), so you can add feedback contacts without modifying the feeder body. No bus communication is built in (PROFINET: No, PROFIBUS DP: No, product function bus communication: No) — this is a standalone electromechanical feeder, not a networked motor starter.