It handles 30 kW at 500 V under AC-3 duty (starting squirrel-cage motors, breaking under load) and delivers 41 A at 400 V under AC-4 duty (plugging, inching, reversing — the tougher switching class that wears contacts faster). The AC-4 rating of 41 A at 400 V matters if your application reverses or jogs the motor under load, which generates more arcing.
Side-by-side mounting is allowed, which saves panel width when ganging multiple contactors for multi-motor groups. Dimensions are 55 mm wide, 112 mm high, 130 mm deep — a compact S2 footprint that fits standard control panel gland plates and wireways. The larger stranded capacity (25 mm²) covers the heavier feeds for the 30 kW motor circuit.
Coil operates at 110 V. Pickup and dropout times are 20 to 25 ms DC. Arcing time runs 10 to 15 ms. Electrical life depends on the switching category and load current; the AC-3 maximum rate of 800 operations per hour gives a sense of the thermal duty cycle.