Reversing starter in S0 frame — what it carries
The 3RA2225-1CB23-0AK6 is a non-fused reversing motor starter from the Siemens SIRIUS family, size S0, designed for two-direction motor control in a single package. Rated 750 W at 400 V (AC-3) and 1.1 kW at 500 V, with a maximum AC-3 switching voltage of 690 V. The reversing contactor interlock is mechanical and electrical — no external wiring needed between the forward and reverse contactors; the link module handles the interlocking logic.
Snap-on mounting and panel clearance
Snap-on fastening to a 35 mm standard DIN rail (EN 60715), vertical mounting position only. Dimensions are 90 mm wide × 120 mm deep × 265 mm high — the S0 frame width fits alongside S00 breakers in a mixed feeder panel. Clearance requirements: 30 mm above, 10 mm in front, 10 mm below, 9 mm at the sides, and 0 mm behind the rail — so the back of the unit sits flush against the mounting plate. Operating temperature range is -20 to +60 °C, storage -50 to +80 °C, transport -55 to +80 °C. Pollution degree 3 (conductive pollution or dry non-conductive pollution that becomes conductive due to condensation) — suitable for industrial control panels without additional environmental sealing.
RoHS compliance date is 03/01/2017 (substance prohibitance per EU RoHS). The unit carries the SIRIUS brand designation and is designed for IEC 60947-4-1 compliance for motor starters and contactors.