What this SIRIUS direct starter delivers
The 3RA2110-0DH15-1BB4 is a Siemens SIRIUS direct-on-line (DOL) starter in size S00, combining a contactor and a thermal overload relay in one unit for controlling and protecting small three-phase motors. It is rated 90 W at 400 V and 0.32 A at 480 V, 50/60 Hz — sized for fractional-horsepower motors on conveyors, pumps, or fans where a compact, pre-assembled starter saves panel space.
Mounting and panel fit — busbar or DIN rail
Designed for snapping onto 60 mm busbar systems, the starter mounts vertically and occupies 45 mm width, 260 mm height, and 155 mm depth — check the clearance envelope: 50 mm upwards, 20 mm forwards, 10 mm downwards, 20 mm at the side, and 0 mm backwards. Power and control wiring lands on spring-loaded terminals (no screw torque to verify), which speeds panel assembly and holds up under vibration. The unit ships with a pre-mounted contactor (3RT2015-2BB41), link module (3RA2911-2AA00), circuit-breaker (3RV2011-0DA20), and busbar adapter (8US1251-5DT11) — so it arrives as a complete feeder, not a kit of loose parts.
Sourcing and lifecycle — active production
For a line-down spare or a new panel build, the spring-terminal design and pre-assembled subcomponents mean less wiring time and fewer loose parts to track. Confirm the BOM line voltage and motor FLA against the 90 W / 0.32 A ratings before committing.