CHINT NB8-63M Miniature Circuit Breaker (Magnetic type),
provides short-circuit protection, switching, and isolation for residential, commercial, and industrial installations.
Engineere to IEC 60947-2 standards, it features C and D tripping curves for low and high inrush current applications.
With a 10kA breaking capacity, up to 63A rated current, and compact DIN-rail design, the NB8-63M offers stable,
efficient, and safe circuit protection under varying load conditions.
- Function: Protection against short-circuit currents, circuit switching, and isolation
- Standard Compliance: IEC 60947-2
- Rated Current (In): 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
- Rated Voltage (Ue): AC 230/400V
- Rated Frequency: 50Hz
- Number of Poles: 1P, 2P, 3P, 4P
- Tripping Characteristics:
- C Curve (6.4–9.6In): For resistive and inductive loads with low inrush current
- D Curve (9.6–14.4In): For circuits with high inrush current (e.g., LV/LV transformers, discharge lamps)
- Rated Breaking Capacity (Icu): 10kA
- Insulation Voltage (Ui): 500V
- Rated Impulse Withstand Voltage (Uimp): 6kV
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Terminal Connection Type: Cable / U-type / Pin-type busbar
- Terminal Size (Busbar): 25 mm² (AWG 18–4)
- Terminal Size (Cable): 10 mm² (AWG 18–8)
- Tightening Torque: 2 N·m (22 in·lbs)
- Mounting: 35mm DIN rail (EN 60715)
- Connection: From top or bottom feed
- Reference Temperature: 30°C
- Operating Temperature Range: –35°C to +70°C (daily average ≤35°C)
- Storage Temperature: –35°C to +70°C
- Protection Degree: IP20
- Pollution Degree: 3
- Compatible Accessories: S9, V9, XF9, XF9J, OVT-1, OUVT-1
- Dimensions (mm): Height 86, Depth 76.8, Width: 18 (1P) / 36 (2P) / 54 (3P) / 72 (4P)
- Certifications: CE, RoHS
