What this reversing load feeder packs
The Siemens 3RA2210-1BA15-2AK6 is a SIRIUS non-fused reversing load feeder in size S00 — a factory-assembled reversing starter that combines a contactor pair, a thermal overload relay, and a circuit-breaker link module in one DIN-rail package. Rated for 750 W at 400 V in AC-3 duty (motor switching), it delivers a Class 10 trip curve for standard induction motor protection. The thermal bimetallic overload release is set at the factory for the supplied contactor 3RT2015-1AK62 and link module 3RA1921-1DA00, so the assembly arrives as a single order code ready to wire.
Mounts vertically on a 35 mm standard DIN rail via screw and snap-on fastening — no tools needed for the snap action, but the screw secures it against vibration in high-shock panels. Dimensions are 170 mm high, 90 mm wide, and 97.1 mm deep, with clearance requirements of 20 mm upward and 10 mm downward for airflow and wiring access. Side clearance is 9 mm. The size S00 footprint is compact enough for dense control cabinets where reversing starters are grouped for multiple motor directions.
The AC-3 rating of 750 W at 400 V defines its real-world motor-switching capability — this is the load it can start and stop across the line without welding contacts. At 480 V it carries 1.63 A; at 600 V, 1.72 A. Trip Class 10 means the thermal overload will trip within 10 seconds at 7.2× the set current — standard for general-purpose induction motors that don't need a slower Class 20 or faster Class 5.