What this SIRIUS direct starter delivers
The 3RA2110-1EH15-1BB4 is a Siemens SIRIUS direct-on-line starter in size S00, combining a contactor and overload relay in one unit for snapping onto 60 mm busbar systems.
Control voltage and termination
The coil is rated 24 VDC — a common PLC-level control voltage, so it drops straight into a 24 VDC control circuit without an extra transformer or rectifier. Main circuit connections use spring-loaded terminals, which means no screw-torque checks on a busbar assembly; just push in the stripped wire and it's clamped.
Physical footprint and mounting
Dimensions are 45 mm wide × 260 mm high × 155 mm deep — the width is the critical panel-space figure; at 45 mm it fits a single 60 mm busbar slot with clearance. Mounting is vertical only, with 50 mm clearance upwards and 20 mm forwards — plan the panel layout so the busbar assembly has room above for wiring access.
Supplied components and operating range
This starter ships with a 3RT2015-2BB41 contactor and a 3RA2911-2AA00 link module — the contactor and overload are matched from the factory, so there's no separate selection step. Operating temperature range is -20 to +60 °C, with storage from -50 to +80 °C — fine for most indoor panel environments but verify if the panel sits in an unheated space.