The 50 kA rating drops to 25 kA at 440 V AC and 10 kA at 600 V AC, so verify the fault level at your specific supply voltage. The B-curve trips magnetically at 4 x In ±20%, so for a 0.5 A breaker, that's roughly 2 A instantaneous pickup — good for protecting sensitive circuits like control transformers or instrumentation supplies where you don't want nuisance trips from inrush.
Terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible, with a 14 mm strip length and 2 N·m torque. IP20 finger-safe terminals, pollution degree 3 rated — fine for most industrial control panels but not for washdown zones. Padlockable toggle for lockout/tagout. Earth-leakage protection requires a separate Vigi block, not integrated.