400v contactor, it will read about 2K ohms across the coil, see if 240v will hold the contacts in, most of the ones I have liberated from old equipment will.
Schurter - circuit breaker - go here https://uk.farnell.com/schurter/t11-211-1/circuit-breaker-thermal-1p-240v/dp/1103775
Schurter - circuit breaker - go here https://uk.farnell.com/schurter/t11-211-1/circuit-breaker-thermal-1p-240v/dp/1103775