Its interrupting capacity hits 330 kA at 240 V and 242 kA at 415 V or 440 V, then drops to 187 kA at 500 V and 7.5 kA at 690 V — that steep fall at 690 V is the real constraint if you are feeding a 690 V drive or transformer primary. The breaker carries a shunt trip (STL) and two HQ auxiliary switches built in, so you get remote trip capability and status feedback without an add-on module.
Thermal derating — the number that decides the real load
At 55 °C it derates to 385 A, at 60 °C to 370 A, at 65 °C to 355 A, and at 70 °C to 340 A.
The basic switch core is order code 3VA2340-7HL32-0AA0, meaning this variant adds the shunt trip and aux switches at the factory rather than as field-installed accessories.