SIRIUS direct-on-line starter, size S00
The Siemens 3RA2110-1BH15-1AP0 is a SIRIUS direct-on-line starter, size S00, combining a contactor and a thermal bimetallic overload relay in one assembly. The starter snaps onto 60 mm busbar systems, vertical mounting only, saving panel space compared to separate contactor-plus-overload builds.
The 750 W rating at 400 V defines the maximum three-phase motor it can start and protect — oversize the starter and the overload won't coordinate with the motor's FLA; undersize and it nuisance-trips or fails on locked-rotor. Class 10 means the bimetallic overload acts fast enough for most standard induction motors — if your motor has a long acceleration time (high-inertia loads like fans or flywheels), you may need a Class 20 or 30 instead. The 155 mm depth, 45 mm width, and 260 mm height (–) fit a standard 60 mm busbar panel layout; the 50 mm clearance above and 20 mm to the side keep heat dissipation paths open.
Supplied as a complete assembly
The 3RA2110-1BH15-1AP0 ships with the contactor (3RT2015-2AP01), link module (3RA2911-2AA00), and busbar adapter (8US1251-5DT11) pre-assembled — no separate ordering or wiring of the overload relay. The busbar adapter clips onto 60 mm systems; the starter body snaps onto the adapter, so the assembly is mechanically supported by the busbar, not the panel backplate. Vertical mounting only — horizontal orientation changes the thermal overload calibration and voids the Class 10 trip curve.
No stock-holding claim — sourced per order through authorized distribution.