The 3VA2463-7HL32-0JA0: At 240 V it interrupts 330 kA; at 415 V and 440 V that drops to 242 kA, then 187 kA at 500 V, and 52.5 kA at 690 V. For a 400 V distribution board, the 242 kA figure gives plenty of headroom above typical utility fault levels — you're not chasing selectivity against a weak link upstream.
Thermal derating — the real-world current you can carry
At 50 °C it's 593 A; at 60 °C, 557 A; at 70 °C, 520 A.
Trip unit and release configuration
The shunt trip (STL) lets a PLC or emergency-stop circuit drop the breaker remotely. There's no undervoltage release, no auxiliary contact, and no voltage trigger on this variant. If you need those, the base switch 3VA2463-7HL32-0AA0 or the integrated auxiliary trip 3VA9688-0BL32 are the building blocks to start from.
The 15 000-cycle mechanical endurance is typical for a main breaker — it's not a daily-switched disconnect, but it'll handle routine maintenance isolation without drama.