Reversing starter for motor control panels
The Siemens 3RA2225-4EB27-0AP6 is a non-fused reversing motor starter from the SIRIUS family, size S0, designed for forward/reverse control of three-phase motors in industrial panels. It snaps onto a 35 mm standard DIN rail and mounts vertically, with a depth of 120 mm, width 90 mm, and height 265 mm — the S0 footprint fits standard motor starter enclosures. The supplied contactor is a 3RT2027-1AP60, and the link module is 3RA2921-1AA00, so the starter arrives as a matched assembly.
Class 10 thermal overload — what it means for motor protection
This is the standard for general-purpose motor starting — it allows the inrush to pass during acceleration but protects the motor if the rotor stalls or the load jams. The ambient compensation range is -20 to +60 °C during operation, with storage from -50 to +80 °C. Pollution degree 3 (industrial environment) and a rated insulation voltage of 690 V mean the starter is suited for panels where conductive dust or condensation is present — no additional derating needed for standard motor control centres.
Active production — sourcing and lifecycle
The supplied contactor (3RT2027-1AP60) and link module (3RA2921-1AA00) are also current-production items, so replacement units and spare parts remain available through standard supply routes.