The AC-3 rating at 400 V is 5.5 kW — that's the figure to size against your motor nameplate, not the AC-1 resistive current.
Terminal wiring and conductor range
Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) stranded, or up to 2x (0.75 to 4 mm²) max. AWG equivalents are 2x (20–16), 2x (18–14), and 1x 12. That covers most panel wiring up to 4 mm² without needing a terminal adapter. Coil terminals share the same range.
Switching ratings and coordination
AC-3 motor switching at 400 V delivers 5.5 kW; at 500 V and 690 V it also holds 5.5 kW, so the contactor is current-limited, not voltage-limited, in that band. AC-4 (reversing / inching) at 400 V is rated 8.5 A. For the auxiliary contact circuit, AC-15 ratings drop with voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V. Type 2 coordination requires a 20 A gL/gG fuse; Type 1 allows a 35 A fuse. Mechanical life is typical 30 million operations.
Environmental and operating limits
The coil pull-in voltage is 0.7 x rated (16.8 V DC) and drop-out is 1.25 x rated (30 V DC) — so it holds in during dips but releases on overvoltage. Front and terminal protection is IP20, finger-safe for panel installation.