What this SIRIUS direct starter is
The 3RA2110-1DD15-1AP0 is a SIRIUS direct on-line starter in size S00 — a pre-assembled combination of a contactor and overload relay designed for switching and protecting three-phase motors up to 690 V. It ships with the supplied contactor 3RT2015-1AP01 and link module 3RA1921-1DA00, so the coordination between the contactor and overload block is factory-set — no separate sizing exercise.
Mounting and panel fit
This starter is designed for snapping onto 60 mm busbar systems — common in panel builds where the busbar trunking carries the main power distribution and the starter clips directly onto it without a DIN rail adapter. Dimensions are 45 mm wide, 203 mm tall, and 155 mm deep — the width is the critical slot dimension on a busbar layout; the 45 mm footprint matches the S00 frame standard. Mounting position is vertical only, with specified clearances: 50 mm upwards, 20 mm forwards, 10 mm downwards, 20 mm at the side, and 0 mm backwards — plan the enclosure depth and ventilation gaps accordingly.
Trip class and thermal environment
Operating temperature range is -20 to +60 °C, with storage and transport limits of -50 to +80 °C — the -20 °C floor matters for unheated warehouses or outdoor cabinet installations. The main circuit uses screw-type terminals — expect to torque per the manufacturer's spec; no spring-cage option on this variant.