The main power circuit uses screw-type terminals accepting 2x (0.25 to 2.5 mm²) solid or 2x (1 to 2.5 mm²) stranded, with a maximum of 2x 10 mm² — enough for the 35 A gL/gG fuse required for Type 2 coordination. That coordination rating means the contactor clears a short-circuit fault without welding its main contacts, so downstream repair is limited to replacing the fuse. Two instantaneous auxiliary contacts are built in, rated 10 A at 24 V and derating to 0.3 A at 220 V. The integrated RC surge suppressor across the coil saves an external module and reduces EMI on the control wiring.
Side-by-side mounting is allowed without derating, so you can gang multiple units in a row to save rail space. Altitude limit is 2 000 m — above that, dielectric strength and cooling drop, so factor derating for high-altitude installations. Coil operating range at 50 Hz is 0.8 to 1.1 times rated voltage, and at 60 Hz it's 0.85 to 1.1 times, giving a solid pickup margin even with line sag.
The integrated RC suppressor and the 2-aux-contact configuration may differ from base variants, so confirm the aux contact count and coil suppression match your control scheme before committing the line.