The Schneider Electric TeSys CV1BH3H0ZM522 is a 3-pole contactor from the TeSys B line, rated for 300 A in AC-3 duty at 690 V AC. That AC-3 rating means it's built for switching squirrel-cage motors — starting, stopping, and inching under load — not just resistive heating or lighting. The coil pulls 220 V AC at 50 Hz, so it's a direct fit for European-standard control circuits without a transformer.
For a 400 V supply, that typically covers motors up to about 160 kW, but always check the motor FLA against the AC-3 current at your line voltage. The contactor also carries an AC-1 rating for resistive loads — useful for large heating banks or lighting panels where the inrush is low. Auxiliary contacts are built in: 2 NO + 2 NC, which is enough for a standard three-wire start/stop circuit with one spare NO for a status signal back to the PLC. No separate aux block needed for basic control schemes.
This contactor is part of the TeSys B range, designed for panel mounting on a backplate or DIN rail with the appropriate adapter. The 3-pole power circuit handles motor feeders, and the 220 V AC coil means the control transformer is already sized for that voltage. If your panel runs 24 V DC controls, you'll need an interposing relay or a different coil variant.