SIRIUS 3RT1015-2AB02 — Power Contactor, Size S00, 24 VAC Coil
The Siemens SIRIUS 3RT1015-2AB02 is a size S00 power contactor with a 24 VAC 50/60 Hz coil, rated for 3 kW at 400 V in AC-3 duty — the standard motor-switching category for squirrel-cage induction motors. Spring-loaded terminals on the main circuit accept 2x (0.25... 2.5 mm²) solid or stranded conductors, or 2x (24... 14) AWG.
The headline motor rating is 3 kW at 400 V in AC-3 (starting and disconnecting running motors). For resistive loads (AC-1), the contactor can switch up to 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the auxiliary or control-circuit ratings, not the main power path. At 690 V the motor rating climbs to 4 kW, and at 500 V it's 3.5 kW, so the contactor can be used on 480 V or 600 V class systems with appropriate fuse coordination. For AC-4 duty (plugging, inching, reversing — high electrical wear), the rated operating current at 400 V is 6.5 A. That's the figure to use if the contactor sees frequent reversing or jogging cycles. The mechanical life is typical 30,000,000 operations, so in a standard conveyor or pump start/stop application it will outlast the machine. Type 1 coordination requires a 35 A gL/gG fuse; The contactor has zero NC contacts on the main circuit and zero instantaneous contacts — it's a bare power contactor, no auxiliaries built in.