CHINT NXBLE-125 Residual Current Operated Circuit Breaker,
offers comprehensive protection by combining overload, short-circuit, and residual current protection in one device. Engineere for industrial, commercial,
and residential applications, it ensures reliable circuit isolation and human safety under fault conditions.
With a high breaking capacity of up to 10kA, rated current up to 125A,
and compliance with IEC/EN 60947-2, the NXBLE-125 delivers superior performance and durability in demanding low-voltage distribution systems.
- Function: Protection against overload, short-circuit, and earth leakage faults
- Standard Compliance: IEC/EN 60947-2
- Rated Current (In): 63A, 80A, 100A, 125A
- Rated Voltage (Ue):
- 230V~ (1P+N, 2P)
- 400V~ (3P, 3P+N, 4P)
- Rated Frequency: 50/60Hz
- Number of Poles: 1P+N, 2P, 3P, 3P+N, 4P
- Tripping Characteristics:
- C Curve (5–10In)
- D Curve (10–16In)
- Rated Residual Operating Current (IΔn): 0.03A, 0.05A, 0.075A, 0.1A, 0.3A
- Type of Residual Current: AC Type
- Rated Short-Circuit Breaking Capacity (Icu): 10kA
- Rated Service Short-Circuit Capacity (Ics): 7.5kA
- Rated Impulse Withstand Voltage (Uimp): 4kV
- Rated Insulation Voltage (Ui): 500V
- Rated Residual Making and Breaking Capacity (IΔm): 1000A
- Electrical Life:
- 6,000 operations (In ≤ 100A)
- 4,000 operations (In > 100A)
- Mechanical Life: 20,000 operations
- Operating Temperature: −35°C to +70°C
- Storage Temperature: −35°C to +85°C
- Altitude: ≤2000m
- Pollution Degree: II
- Protection Degree:
- IP20 (device only)
- IP40 (when installed in distribution box)
- Terminal Connection Type: Cable or busbar connection
- Terminal Capacity: 16–50mm²
- Tightening Torque: 3.5N·m
- Mounting: DIN rail (TH35-7.5)
- Connection: Top or bottom wiring supported
- Dimensions (approx.): Height 86mm × Depth 76.5mm × Width (per pole) 18mm
- Certifications: CE, RoHS

