It switches 25 A in AC-3 duty (motor starting/running) at up to 440 V, with a 440 V AC 60 Hz coil and one normally-closed auxiliary contact built in.
The 25 A AC-3 rating governs motor switching — that's the current the contactor can make and break under inductive motor load, not just carry. The 440 V AC coil means the control circuit needs a 440 V supply at 60 Hz; don't try a 50 Hz coil voltage or a different control voltage without verifying the pickup and dropout curve. The 1.5 ms non-overlap time between NC and NO contacts is baked in — no external interlock needed for simple reversing or star-delta circuits.
Standards and Environmental Limits
Built to EN/IEC 60947-4-1 (contactor/motor-starter standard) and GB/T equivalents. Fire resistance tested to 850 °C per IEC 60695-2-1. Operating ambient is -5 to 55 °C; storage range is -60 to 80 °C.