The 3RA2110-1AA15-1FB4 is a Siemens SIRIUS direct online starter in size S00, meaning it's the compact frame for low-power motor feeders up to 1.6 A at 400 V AC-3 duty. The supplied contactor is a 3RT2015-1FB41, and the link module 3RA1921-1DA00 is included — no separate sizing or wiring of contactor and overload relay. The thermal bimetallic overload release provides Class 10 trip protection, which covers standard motor starts without nuisance tripping on moderate acceleration times.
The AC-3 rating of 1.6 A at 400 V defines the motor switching capability — this is the current the starter can break under full-load starting conditions. The bimetallic element tracks motor heating without an external power supply, so the starter works standalone. Mounting position is vertical, with 50 mm clearance upwards and 20 mm forwards for ventilation and wiring access. The ambient operating range is -20 to +60 °C, with storage from -50 to +80 °C — the thermal overload compensates across the operating band.
Active production — lifecycle and sourcing
No official successor or cross-reference is recorded — this is the current build standard for the S00 direct starter line. The pre-matched contactor and link module mean the assembly is a single order code, reducing procurement line items.