Interrupting capacity — the real number for your fault study
At 240 V this breaker interrupts 121 kA; at 415 V and 440 V it holds 75.6 kA; at 500 V it drops to 52.5 kA; at 690 V it's 11.9 kA. That range tells you where it's comfortable — the 690 V figure is low, so don't spec it for a 690 V bus without checking your available fault current against that ceiling. The interrupting capacity range spans from a minimum 3 150 A to a maximum 5 040 A — that's the breaker's own internal short-time withstand, not the system SCCR.
Temperature derating — don't lose headroom
At 55 °C it's 618 A; at 60 °C it's 607 A; at 65 °C it's 595 A; at 70 °C it's 583 A. If your panel runs hot, you lose about 12 A per 5 °C step above 50 °C — plan your load accordingly.
The 3VA1463-4EF32-0AA0 measures 248 mm high, 138 mm wide, and 110 mm deep — a standard MCCB footprint for 630 A frames. It mounts directly into a switchboard or panel via the rear studs; no DIN-rail adapter for this class.
What's not on this variant
This is a bare line-protection breaker — if you need any of those, you're looking at a different 3VA variant.