Technical Characteristics — CHINT NXB-125 C100 / C125 (4P)
FeatureSpecificationBrandCHINT ModelNXB-125 Poles4P (Three-phase + Neutral) Rated Current (In)100A (C100) or 125A (C125)Tripping CurveType C (trips at 5–10 × In — for resistive & inductive loads) Rated Voltage (Ue)400/415V AC Frequency50/60 Hz Breaking Capacity (Icu)10 kA (at 400V AC) Service Breaking Capacity (Ics)7.5 kA Rated Insulation Voltage500 V Rated Impulse Voltage (Uimp)4 kV InstallationDIN Rail Mounting Operating Temperature–5 °C to +40 °C StandardsIEC/EN 60947-2 Mechanical Life20,000 operations Electrical Life4,000–6,000 operations depending on load (lower for >100A) ApplicationsMain circuit protection in residential, commercial & industrial power systems CertificationsCE, CB, ISO9001 DimensionsStandard modular format (~90 mm height, 70+ mm width for 4P)












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