SIRIUS 3RT1025-3AG20-ZX95 Power Contactor — S0 Frame, 11 kW at 690 V
It delivers 11 kW at 690 V (AC-3 duty) and 10 kW at 500 V, with a 45 mm width that fits standard DIN-rail enclosures. The main circuit uses screw-type terminals accepting 2x (0.25 to 2.5 mm²) solid or 2x (1 to 2.5 mm²) stranded, up to 2x 10 mm² max. AWG equivalents are 2x (16 to 12) solid and 1x 8. This covers most panel wiring for a contactor of this size without needing lug adapters.
The headline 11 kW at 690 V (AC-3) rating is the motor-switching capability — it tells you the contactor can handle the inrush and breaking current of a standard squirrel-cage induction motor up to that power. At 500 V, that drops to 10 kW, which is still a solid rating for a 45 mm-wide S0 frame. For resistive loads (AC-1), the operating current maximum is 10 A at 400 V, and for mixed motor-resistive duty (AC-2) at 400 V, it handles 7.5 kW. The AC-4 rating (plugging/reversing) at 400 V is 15.5 A — useful for frequent jogging or reversing applications where contact wear accelerates. The auxiliary contact ratings span from 10 A at 24 V down to 0.3 A at 220 V, covering typical PLC-level control signals. The coil operates at 50/60 Hz with a voltage tolerance of 0.8 to 1.1 times rated at 50 Hz and 0.85 to 1.1 at 60 Hz, so it holds in during brownout conditions down to about 80% nominal.
Thermal and Coordination Limits
This is critical for panel builders sizing the upstream protection device. Mechanical endurance is typical 10 million operations — that's the life before the contactor wears out mechanically, not electrically. Electrical life depends on the switching current and load type; for AC-3 motor loads, expect fewer cycles than the mechanical figure.