The Siemens 3RA6250-1AB32 is a SIRIUS reversing compact starter — a single device combining a reversing contactor and overload relay for controlling motor direction in a compact footprint. Rated for continuous operation per IEC 60947-6-2, it handles reversing duty without external interlocking hardware. The coil accepts 24 V AC/DC, simplifying panel wiring where a single control voltage is used.
Adjustable trip class 10 and 20 lets you match the overload curve to the motor start profile: class 10 for fast-starting fans/pumps, class 20 for high-inertia loads like conveyors. Screw-type terminals on the main circuit accept 0.5 to 4 mm² solid or 2x 0.5 to 2.5 mm² stranded — standard for control panel wiring up to 4 mm².
Mounts on standard DIN rail (vertical or horizontal) with screw and snap-on fastening; dimensions 170 x 90 x 165 mm fit a standard 90 mm wide slot. Vibration tested to 20 m/s² at 5.8–500 Hz and shock rated at 60 m/s² (6 g) — holds up in machine-mounted panels.