The Siemens 3RA2324-8XB30-1AK6 is a SIRIUS reversing contactor assembly — a pre-assembled pair of contactors mechanically interlocked to reverse a three-phase motor without external wiring. It ships with one 3RT2024-1AK60 contactor already fitted; the second is integrated in the assembly. Size S0 frame, so it occupies the same DIN-rail footprint as a single S0 contactor plus the interlock mechanism. Screw-type terminals on both the main and coil circuits. Rated 5.5 kW at 400 V AC-3 (11 A at 480 V, 11 A at 600 V, 7.5 kW at 690 V). HP ratings: 3 hp at 220/230 V, 7.5 hp at 460/480 V, 10 hp at 575/600 V. That covers most standard three-phase induction motors up to 7.5 kW (10 hp) in North American and IEC installations. Mechanical life rated at 10 million operations. Maximum switching frequency 1,000 cycles per hour in AC-3 and AC-3e duty.
Dimensions: 101 mm height, 90 mm width, 97 mm depth. Wire sizes: main circuit accepts 2x (1…2.5 mm²) solid or 2x (2.5…10 mm²) solid. Coil terminals accept 2x (0.5…1.5 mm²) solid/stranded or 2x (0.75…2.5 mm²) solid/stranded. Two instantaneous auxiliary contacts are included.
Shock resistance: 11.8 g / 5 ms and 7.4 g / 10 ms (AC), 15 g / 5 ms and 10 g / 10 ms (DC). Vibration at 50 Hz: 0.25 g; at 60 Hz: 0.8…1.1 g. No end-of-life notification or last-time-buy window is indicated in the available records.