SIRIUS 3RA2 non-fused load feeder — direct starter, size S0
The Siemens 3RA2120-4AA26-0AK6 is a SIRIUS non-fused load feeder configured as a direct starter in size S0.
Panel fit and clearance — 45 mm wide, size S0 footprint
Width is 45 mm, depth 97.1 mm, height 193.1 mm. The unit mounts vertically on a 35 mm DIN rail with screw or snap-on fastening. Clearance requirements: 30 mm upwards, 10 mm forwards, 10 mm downwards, 9 mm at the side, and 0 mm backwards — so it sits flush against the back panel. Size S0 load feeder means the circuit-breaker and contactor are matched in a compact package that fits standard panel layouts. The supplied link module bridges the contactor and overload relay, reducing wiring time and potential errors.