S0 frame contactor with spring-type coil terminals
The 3RT2025-2AL20-ZW96: The coil connection uses spring-type terminals, which speeds wiring and resists loosening under vibration compared to screw terminals.
Switching frequency and duty class limits
Rated for 1,000 operating cycles per hour in AC-1, AC-2, AC-3, and AC-3e duty, but derates to 300 cycles per hour in AC-4 — the higher arc energy in reversing or plugging duty governs the thermal limit of the contactor. Mechanical endurance is 10 million operating cycles typical, so the contactor outlasts most panel-mounted electromechanical components in normal motor-starting service.
Mounting position and clearance envelope
Minimum clearances to adjacent metalwork: 10 mm upwards, downwards, and forwards; 6 mm at the sides. The arcing time is 10 ms, so the 10 mm forward gap is the arc-chamber vent path, not a suggestion.
Wire range and auxiliary contact ratings
Motor horsepower rating is 3 hp at 230 V, which aligns with typical S0-frame motor-switching applications in North American 230 V three-phase systems.
Temperature envelope and storage limits
The 20 °C gap between operating and storage high limits means the contactor can sit in a hot warehouse or unventilated enclosure without damage, provided it is not energized above 60 °C.