The contactor is rated for AC-3 switching up to 14 A at 480 V, which covers typical 3 hp motor loads at 230 V and 3 A at 400 V — the AC-3 rating is the one that governs real motor duty, not the higher AC-1 resistive figure.
Switching Capacity and Duty Ratings
The 3RT2025-1AD04 carries a 24 VDC coil rated at 6 A holding current. For DC switching on the main contacts, it handles 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 0.6 A at 440 V — these are the DC-1 resistive load ratings, not motor duty. The AC-3e maximum switching frequency is 1,000 operations per hour, matching the AC-1, AC-2, and AC-3 rates; AC-4 drops to 300 cycles per hour for plugging or inching duty.
For finer control wiring, two conductors per terminal are allowed: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). The magnet coil connection is also screw-type. No auxiliary switch is integrated — if aux contacts are needed, a separate side-mount block must be added.
Environmental and Operating Limits
Coil power consumption at 50 Hz is 0.25 A. Arcing time is 10 to 10 ms (a tight band typical of DC coil contactors). The contactor is rated for AC switching with a make/break time of 4 to 16 ms.