That AC-1 rating — 60 A at 400 V — means it's sized for switching resistive or slightly inductive loads like heaters, lighting banks, or transformer primaries, where the inrush is low and the power factor stays near unity. The coil is a 415 V AC wide-range type, so it pulls in reliably across a spread of line voltages without needing a separate control transformer tap.
The footprint is 85 mm wide × 127 mm tall × 125 mm deep, which fits a standard 4-pole contactor slot in most panel layouts. IP2X finger protection on the enclosure (IEC 60529) means it's safe for open-panel mounting where accidental contact is a concern.