What this starter is and where it lands
The Siemens 3RA2110-1CD15-1BB4 is a SIRIUS direct-on-line starter, size S00 — a factory-assembled combination of a contactor and an overload relay in one package, designed to snap onto 60 mm busbar systems.
Mounting and panel fit
This starter clips directly onto 60 mm busbar systems — no DIN rail adapter needed — and must be mounted vertically per the spec. The envelope is 45 mm wide, 203 mm tall, and 155 mm deep, with 50 mm clearance required above and 20 mm below for airflow and wiring access. Main circuit connections use screw-type terminals; the supplied contactor is a 3RT2015-1BB41 and the link module is a 3RA1921-1DA00, so the starter arrives as a ready-to-wire unit.