SIRIUS reversing starter, size S00
The Siemens 3RA2215-0GA15-2BB4 is a non-fused reversing motor starter from the SIRIUS family, size S00, combining a contactor and overload relay in one assembly for forward/reverse control of a three-phase motor. It ships with the contactor 3RT2015-1BB42, the circuit-breaker 3RV2011-0GA15, and the link module 3RA1921-1DA00 — a matched set that coordinates the thermal and magnetic protection with the switching device. The thermal bimetallic overload relay is set for Class 10 trip characteristics, meaning it protects standard AC induction motors during start-up without nuisance tripping on normal inrush.
Motor power and voltage coverage
The 24 V DC magnet coil draws 4 W holding power — a standard control voltage for industrial panels, compatible with most PLC digital outputs and safety relays. Operating frequency is 50/60 Hz, so the same unit works on 50 Hz or 60 Hz supply without derating.
Panel fit and mounting
The S00 frame measures 90 mm wide, 170 mm high, and 97.1 mm deep — a compact footprint that fits standard 600 mm deep enclosures with room for wiring ducts. Mounting position is vertical only; clearance requirements are 20 mm upwards, 10 mm downwards, and 9 mm to the side for heat dissipation and wiring access.
Sourcing and compliance
The 3RA2215-0GA15-2BB4 is a reversing starter, not a direct-on-line unit — the mechanical interlock between the two contactors prevents both from closing simultaneously, which is critical for motor reversing circuits.