CHINT NXB-63S Miniature Circuit Breaker (MCB),
delivers dependable protection against overload and short-circuit faults in residential, commercial,
and industrial electrical systems. Designe for AC 230/400V circuits, it supports rated currents up to 63A with breaking capacities of 6kA or 10kA. Compact and durable, the NXB-63S ensures safe power distribution, high operational reliability,
and long mechanical life. Fully compliant with IEC60898-1, it’s the ideal solution for modern low-voltage networks.
- Standard Compliance: IEC60898-1
- Rated Voltage (Ue): 230/400V AC
- Rated Frequency: 50/60Hz
- Rated Current (In): 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
- Rated Short-Circuit Breaking Capacity (Icu): 6kA or 10kA (depending on model)
- Tripping Curve Types: B, C, and D
- Number of Poles: 1P, 2P, 3P, 4P
- Rated Impulse Withstand Voltage (Uimp): 4kV
- Operating Temperature Range: –25°C to +70°C
- Mechanical Life: ≥20,000 operations
- Electrical Life: ≥10,000 operations
- Connection Type: Screw terminal connection
- Terminal Capacity:
- 1.5–25 mm² solid wire
- 1.5–16 mm² stranded wire
- Tightening Torque: 2.0 N·m
- Installation: 35mm DIN rail
- Mounting Position: Vertical or horizontal
- Protection Degree: IP20 (front face)
- Altitude: ≤2000 m
- Storage Temperature: –35°C to +85°C
- Typical Applications: Residential distribution boards, industrial control panels, and commercial buildings
