CHINT NB3LE-AFD Residual Current Operated Circuit Breaker,
with Residual Current Operated Function provides integrate protection against arc faults,
overloads, short-circuits, and earth leakage in AC 230/240V, 50Hz systems.
Designe for rated currents up to 32A, it combines AFDD, MCB, and RCCB functionality in one compact unit.
Ideal for residential, commercial, and industrial applications,
the NB3LE-AFD enhances electrical safety by preventing fire hazards cause by arc faults while ensuring reliable residual current protection.
- Standards: BS EN 61009-1, BS EN 62606
- Function: Arc fault detection + overload, short-circuit, and leakage protection
- Rated Operational Voltage (Ue): AC 230/240V
- Rated Current (In): 6A, 10A, 13A, 16A, 20A, 25A, 32A
- Poles: 1P+N
- RCD Type: Type A – responds to both AC and pulsating DC residual currents
- Thermo-Magnetic Curve: B (3–5In) and C (5–10In) curves available
- Rated Sensitivity (IΔn): 10mA, 30mA
- Rated Short-Circuit Capacity (Icn): 6kA
- Rated Residual Making & Breaking Capacity (IΔm): 6,000A
- Breaking Time under IΔn: ≤0.1s
- Rated Frequency: 50Hz
- Rated Impulse Withstand Voltage (Uimp): 4kV
- Dielectric Test Voltage: 2kV for 1 minute
- Insulation Voltage (Ui): 500V
- Pollution Degree: 2
- Indicator Lights:
- Blue light ON → Normal operation
- Alternating blue/red flashing → Series arc fault
- Red light flashing → Leakage fault
- Blue light flashing → Overvoltage
- Red light steady → Self-test failure
- Electrical Life: 4,000 operations
- Mechanical Life: 10,000 operations
- Ambient Temperature Range: –25°C to +40°C
- Storage Temperature: –25°C to +70°C
- Temperature Derating Coefficient: 1.27 (–25°C) → 0.83 (+70°C)
- Mounting: DIN rail EN 60715 (35mm) with fast clip device
- Terminal Connection: Cable/U-type/Pin-type busbar
- Terminal Capacity:
- Cable: 16mm² (AWG 18–5)
- Busbar: 6mm² (AWG 18–10)
- Tightening Torque:
- Bottom terminals: 2 N·m
- Top terminals: 1.2 N·m
- Protection Degree: IP20
- Connection Method: Bottom electrical feeding
- Dimensions (mm): 113.6 (H) × 77.9 (D) × 18 (W)
- Certifications: CE, CB, UKCA
