What this reversing starter carries
The 3RA2215-1HD16-2BB4 is a SIRIUS non-fused reversing motor starter in size S00, combining a contactor, a thermal bimetallic overload relay, and a mechanical interlock in one assembly. It ships with the 3RT2016-1BB42 contactor, the 3RA1921-1DA00 link module, and the 8US1251-5DS10 busbar adapter — so you get the interlock and power distribution hardware included, not as separate line items.
The overload is thermal bimetallic, so it tracks the motor's actual heating curve rather than a fixed electronic threshold — good for applications where the motor load profile varies with the process cycle. Rated for pollution degree 3, meaning it's built for the conductive dust and humidity you find in a typical industrial panel, not a clean-room environment.
Mounting and panel fit
Snaps onto 60 mm busbar systems — the fastening method is a spring clip, not screws, so you can install or replace it without tools on the busbar. Mounting position is vertical only; the dimensions are 90 mm wide, 200 mm high, and 155.1 mm deep, with 20 mm clearance needed above and 10 mm below for airflow and wiring access.
Because it's a reversing starter with the interlock built in, there's no direct second-source drop-in from another manufacturer — the panel wiring and busbar adapter are specific to the SIRIUS S00 platform.