CHINT NXB-63 Miniature Circuit Breaker (MCB),
provides reliable protection against overload and short-circuit faults in low-voltage electrical systems.
Designe for residential, commercial, and light industrial use,
it features high breaking capacity (up to 10kA) and precise thermal-magnetic tripping characteristics (B, C, D curves).
With compact dimensions, a long mechanical lifespan, and compliance with IEC/EN60898-1,
the NXB-63 MCB ensures safe and stable performance for power distribution networks
- Function: Protection against overload and short-circuit faults
- Standard Compliance: IEC/EN 60898-1
- Certifications: CE, SNI, NOM, EAC, SII, RoHS, REACH, Carbon Footprint
- Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
- Rated Voltage (Ue):
- 220V~/230V~/240V~ (1P, 1P+N, 2P)
- 380V~/400V~/415V~ (2P–4P, 3P+N)
- Frequency: 50/60 Hz
- Tripping Characteristics: B, C, D Curves
- Number of Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P
- Rated Short-Circuit Breaking Capacity (Icn): 6kA / 10kA (depending on model)
- Rated Service Short-Circuit Capacity (Ics): 6kA / 7.5kA
- Rated Insulation Voltage (Ui): 500V
- Rated Impulse Withstand Voltage (Uimp): 4kV
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Mounting: 35mm DIN rail (TH35-7.5)
- Connection Type: Top or bottom wiring
- Terminal Capacity:
- Min: 1mm²
- Max: 25mm²
- Tightening Torque: 2.0 N·m
- Operating Temperature: −35°C to +70°C
- Storage Temperature: −35°C to +85°C
- Altitude: ≤2000m
- Protection Degree:
- IP20 (direct mounting)
- IP40 (inside distribution box)
- Pollution Degree: Class II
- Compatible Accessories: AX-X1, AL-X1, SHT-X1, OVT-X1, UVT-X1, OUVT-X1
- Power Consumption (per pole):
- 3W (1–10A), up to 13W (63A)
- Dimensions: Compact modular design; fits standard distribution boards
