The Siemens 3RA1210-1GD15-0BB4 is a SIRIUS non-fused load feeder configured as a reversing starter in size S00. It integrates a supplied contactor, a bimetal overload relay, and a circuit-breaker into a single unit for motor reversing duty up to 2.2 kW at 400 V. The unit snaps onto 60 mm busbar systems, saving panel space and simplifying wiring for reversing motor starters in conveyor, pump, or fan applications.
Mounting position is horizontal; the feeder snaps onto 60 mm busbar systems with a center-to-center spacing of 60 mm. Clearance requirements: 20 mm upwards, 10 mm forwards, 9 mm backwards, 20 mm at the side, and 0 mm downwards. Wiring accepts solid or stranded conductors from 0.5 to 4 mm², with dual terminals for 2x (0.75 to 2.5 mm²). For AWG, main contacts accept 2x (18 to 14).
Shock resistance is rated at 9.8g, and the pollution degree is 3 (conductive pollution typical in industrial environments). The no-load switching frequency reaches 15 operations per second, reflecting the electromechanical contact design.