Its breaking capacity hits 330 kA at 240 VAC — that's the figure to check against your available fault current; at 415 V it still holds 242 kA, and at 690 V it drops to 4.5 kA, so this is a 240–500 V breaker, not a 690 V main.
The 3VA2225 frame measures 105 mm wide, 181 mm tall, 86 mm deep — standard for a 250 A SENTRON MCCB. The shunt trip (STL) requires a separate control voltage to trip; verify your control transformer and wiring match the STL coil rating. No communication function on this variant — if you need Modbus or PROFIBUS, look at the 3VA2 with communication module option.