SIRIUS power contactor, Size S2 — 3RT5036-1AH00
Rated for AC-3e duty at up to 690 V, the contactor delivers 38 kW at 400 V and 66 kW at 690 V (both at 60 °C), making it a fit for medium-horsepower motor control on 400/480 V or 690 V line supplies.
Motor power and switching capacity
The AC-3e rating governs motor switching: 22 kW at 230 V, 38 kW at 400 V, and 66 kW at 690 V (all at 60 °C). These figures match the Size S2 frame's typical capability for 30–75 kW motors depending on line voltage. The contactor's mechanical life is 10 million operations; electrical life varies by load — 5,000 cycles/h at AC-3, 800 at AC-3e maximum, and 300 at AC-4 (plugging/reversing). Coil consumption at 50 Hz is 0.36 A, with a 24 V DC pick-up of 6 A inrush (rated value). The control circuit accepts screw terminals for 2x (0.75…16 mm²) solid/stranded or 2x (18…2 AWG).
Mount on 35 mm DIN rail per DIN EN 50022; the contactor can be rotated ±180° on a vertical surface and tilted ±22.5° forward/backward. Screw terminals accept 2x (0.75…16 mm²) or 2x (18…2 AWG) for main contacts. Minimum wire size at 40 °C and 60 °C is 16 mm². The 55 mm width allows multiple units side-by-side.