It carries a 42 V AC coil with a built-in bidirectional peak-limiting diode suppressor, so the coil circuit is self-snubbed — no external flyback diode needed on the control side. Motor power capability spans the voltage range: 7.5 kW at 380–415 V AC, 5.5 kW at 440 V, 4 kW at 480 V, and 4 kW at 500–690 V AC, all at 50/60 Hz. That makes it a compact 3-pole contactor sized for small to medium motor loads in a control panel.
The AC-3 rating (16 A at ≤440 V) governs motor switching — that is the duty cycle for starting and disconnecting squirrel-cage motors under load. The AC-1 rating covers resistive loads at the same current. The 1.3 W heat dissipation is low enough that no special derating is needed in a standard 45 mm wide DIN-rail enclosure, but verify the thermal stack if multiple contactors are ganged without spacing. Flame retardance is V1 per UL 94, which means the housing material self-extinguishes within a vertical burn test — standard for panel-mounted control gear. The built-in coil suppression (bidirectional peak-limiting diode) eliminates the need for a separate RC snubber or free-wheeling diode across the coil terminals, simplifying wiring.