Siemens SIRIUS 3RT6018-1AU02 — Power Contactor, Size S00
The Siemens 3RT6018-1AU02 is a SIRIUS power contactor in the compact S00 frame, rated to switch a 22 kW motor at 690 V AC-3. That puts it in the middle of the S00 power band — enough for a moderate pump, fan, or conveyor drive without stepping up to the S0 frame.
The S00 footprint is 45 mm wide, 57.5 mm tall, and 73 mm deep.
Ratings and Duty Cycles
AC-3 motor switching is the primary duty: 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V. The contactor handles up to 690 V insulation voltage and pollution degree 3 — typical for industrial panels. Mechanical life is 30 million operations, with maximum electrical switching rates of 1000 cycles/hour at AC-1, 750 at AC-3, and 250 at AC-4.
Main circuit terminals accept screw-type connections. Wire sizes: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded. Minimum permissible cross-section at 40 °C is 4 mm², derated to 2.5 mm² at 60 °C.