The Siemens 3RA2415-8XF31-1AP6 is a factory-assembled star-delta (wye-delta) contactor assembly from the SIRIUS family, Size S00 frame. It comes with three 3RT2015-1AP61 contactors and the 3RA2913-2BB1 RS assembly kit pre-mounted, so you don't have to build the interlocking and timing from loose parts. Rated for 5.5 kW at 400 V, 7.2 kW at 500 V, and 9.2 kW at 690 V in AC-3 duty, this assembly handles motor starting currents for pumps, fans, and compressors up to those power levels. The three contactors share the same coil voltage — the spec table shows 220 V at 50 Hz and 240 V at 60 Hz. That flexibility helps when you're squeezing this into a crowded panel and the gland plate is already tight.
The AC-3 maximum switching frequency is 1,000 operations per hour. Dimensions are 68 mm high, 135 mm wide, and 145 mm deep — that's the envelope for the assembled unit. The wiring clearance calls for 6 mm upwards, forwards, downwards, and sideways, with 0 mm backwards (flush to the DIN rail). Plan your panel layout accordingly.