AC-3 rated at 690 V maximum — that's the motor-switching duty that matters for a 3-phase induction motor up to that voltage. At 400 V and 60 °C it handles 23 kW; at 690 V and 60 °C it's good for 40 kW. The AC-1 resistive rating hits 1 000 operations per hour max, AC-3 also 1 000 per hour, AC-4 at 300 per hour. For a pump or conveyor running a moderate cycle, the 5 000 1/h at AC covers the full-load switching rate.
Main circuit terminals are screw-type; auxiliary and control circuit terminals are also screw-type. Wire sizes: 2x (0.5...1.5 mm²) solid or stranded, or 2x (0.75...2.5 mm²). For the main contacts, it accepts 2x (16...12) or 2x (14...8) AWG. Minimum 10 mm² at both 40 °C and 60 °C. Strip length? Not listed here, but standard for screw terminals — 8 mm is typical. Coil draw at 24 V is 6 A; at 110 V it's 1 A; at 220 V it's 0.3 A.