The 220 V AC 50 Hz control coil pulls in reliably across its operating range. AC-1 utilisation covers resistive circuits like heating and lighting; AC-3 covers induction motors. The 1 NO + 1 NC auxiliary contact set is built in, so no separate aux block is needed for basic feedback or interlocking.
This is a panel-mount contactor from the TeSys B family, sized for a DIN-rail or screw-fixed footprint. The 1-pole form factor saves rail space compared to a 3-pole unit when you only need single-phase or DC switching. The 470 A rating in a single-pole package means the power terminals and arc chamber are built for that current density — verify lug size and bus bar clearance for full-load terminations.