The Schneider Electric CV1BH1H0ZM511 is a TeSys B single-pole contactor rated for 300 A in AC-3 duty at 690 V AC, with a 220 V AC 50 Hz coil. That AC-3 rating means it handles motor switching — starting and stopping induction motors under load — not just resistive heating or lighting. The 1-pole configuration with 1 NO main pole and 1 NO + 1 NC auxiliary contacts makes it a fit for single-phase motor circuits or DC switching where you need one line break.
The AC-1 rating (resistive) will be higher, but for motor loads, stick with the AC-3 figure. The 220 V AC 50 Hz coil is common in European and Asian control circuits; verify your control transformer matches before wiring.