The Siemens SIRIUS 3RA2417-8XF31-2BB4-ZX95 is a pre-assembled star-delta (wye-delta) contactor assembly for motor starting, rated 11 kW at 400 V, 500 V, and 690 V. It ships with three contactors: two 3RT2018-2BB41 and one 3RT2016-2BB41, plus the 3RA2913-2BB2 RS assembly kit. All power and control connections use spring-loaded terminals — no screw torque to verify, no periodic re-tightening.
Mounts on 35 mm standard DIN rail via screw or snap-on fastening. The size S00 footprint measures 135 mm wide by 84 mm high by 145 mm deep. Clearance requirements: 6 mm upwards, forwards, and to the sides; 0 mm backwards.
Wiring and protection
Power circuit spring terminals accept 2x (0.5 to 4 mm²) solid or 2x (0.5 to 2.5 mm²) stranded; AWG equivalents are 1x (20 to 12). For gG fuse protection, the assembly requires 25 A fuses (type NH 3NA, DIAZED 5SB, or NEOZED 5SE). No auxiliary switch or bus communication module is included — this is a standalone motor-starting assembly.