The Siemens 3RA2110-0JE15-1AP0 is a SIRIUS direct (on-line) starter, size S00, combining a contactor and a thermal (bimetallic) overload relay in one unit for motor starting and protection. Rated at 250 kW at 400 V in AC-3 duty, this starter switches three-phase induction motors up to that load — the rating that governs real motor starting, not a resistive-heater figure. Trip Class 10 means the overload relay will trip within 10 seconds at 7.2× the current setting, protecting the motor during a stalled-rotor condition without nuisance tripping on a normal start.
Mounting and integration into a panel
Mounts via screw or snap-on onto 35 mm DIN rail in the vertical position, with 50 mm clearance above, 20 mm forward, and 10 mm below for airflow and wiring access — no extra side clearance needed. Main circuit connections use spring-loaded terminals, so no screw-torque check on the power path — strip and push, which speeds panel wiring and eliminates loose-terminal callbacks. The supplied contactor is a 3RT2015-2AP01 and the supplied link module is a 3RA2911-2AA00; the starter ships as a matched assembly, not loose components.