The Siemens SIRIUS 3RA6250-1CP32 is a compact reversing starter — a single device that handles forward/reverse motor control and overload protection in one package, rated for continuous operation per IEC 60947-6-2. The trip class is adjustable between CLASS 10 and CLASS 20, so you can match the overload curve to the motor start profile: CLASS 10 for faster starts (like pumps), CLASS 20 for higher-inertia loads (fans, conveyors).
Dimensions: 170 mm high, 90 mm wide, 165 mm deep. That 90 mm width is three 18 mm module spaces — plan your rail layout accordingly. Rated for pollution degree 3 (industrial environment), operating -20 to +60 °C, and vibration tested per 10 cycles at 20 m/s² up to 500 Hz. Shock rated 6g, 10 ms pulses.
