What this SIRIUS reversing starter is
The Siemens 3RA2225-0HB23-0AP6 is a non-fused reversing motor starter from the SIRIUS 3RA2 family, combining a contactor and overload relay in one package for forward/reverse control of a three-phase motor. It ships as a complete assembly: the supplied contactor is a 3RT2023-1AP60, the link module is 3RA2921-1AA00, the busbar adapter is 3RA2922-1AA00, and the reversing (RH) assembly kit is 3RA2923-1BB1 — everything needed to drop it on the rail and wire it up.
Dimensions are 90 mm wide, 120 mm deep, 265 mm tall, with clearance requirements: 30 mm upwards, 10 mm forwards, 10 mm downwards, 9 mm at the side, and zero backwards — tight enough for a crowded panel if you plan the gland plate. Main contact wiring accepts stranded 1 to 10 mm² or 2x (2.5 to 6 mm²); AWG equivalents are 2x (16 to 12) or 2x (14 to 8).
This is a stocked catalog item in the SIRIUS 3RA2 line, sourced through independent distribution channels.
