The key motor-switching rating is 41 A at AC-4 duty at 400 V, which covers severe inching, plugging, and reversing applications where the contactor must interrupt locked-rotor currents. For less demanding AC-2 duty at 400 V, it handles 22 kW, typical for slip-ring motor starting.
Terminals and wiring
Main current circuit connections use screw-type terminals. The main circuit accepts stranded wire up to 2x 25 mm² or solid up to 2x 2.5 mm², with a minimum permissible cross-section of 16 mm² at 40 °C. This gives you headroom for the full rated current without derating the terminal block. The front of the contactor carries IP20 protection, so accidental finger contact with live terminals during panel access is guarded against. The terminal area itself is IP00, which is normal for enclosed panel installations.
Electrical life varies by duty: maximum 1,000 operations per hour at AC-1, 800 at AC-3, and 300 at AC-4. These matter when coordinating contactors in a reversing starter or when sequencing multiple contactors to avoid short circuits between phases.