It carries a 24 V DC magnet coil with a 3.3 W holding power draw, so the control transformer or PSU needs to budget for that sustained load across the bank of contactors. Rated for 5.5 kW at 400 V in AC-3 duty (squirrel-cage motors), it also handles 5.5 kW at 400 V AC-2 (slip-ring motors) and 8.5 A at 400 V AC-4 (plugging/inching). The auxiliary contact block carries a rated 10 A at 24 V, 6 A at 230 V, and derates to 0.3 A at 220 V DC — that DC rating is the limiting factor for switching small DC solenoids or indicator lamps in the same circuit.
Main circuit wiring uses spring-loaded terminals accepting 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG). No screw torque to verify — just strip to 8 mm and push in. The IP20 finger-safe front and terminal cover means it's panel-safe without additional shrouding in a standard enclosure. The 6 mm side clearance is for heat dissipation when mounted in free air; side-by-side mounting is allowed but check the temperature derating curve if the panel runs hot.