What this MCB carries — and where it breaks
That C-curve means it holds through mild inrush — motors, transformers, capacitor banks — and trips fast on a hard short. For DC circuits it breaks 15 kA up to 72 V. Under UL 1077 it's listed at 5 kA — a different standard, not a derating; the IEC figure governs the European panel coordination.
Sealable cover available if the panel spec requires tamper-evidence.
Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Humidity tolerance: max 95% up to 55 °C, derating to 35% at 75 °C.