CHINT NB1-63H Miniature Circuit Breaker,
provides dependable protection against overload and short-circuit faults in AC circuits up to 415 V.
Engineered for residential, commercial, and industrial applications, it features a 10 kA breaking capacity,
thermomagnetic trip, and multiple tripping curves for versatile use. With a compact modular design,
IP20 protection, and compliance with IEC/EN 60898-1 standards, the NB1-63H ensures safe,
efficient, and durable circuit control in modern power distribution systems.
- Standard: IEC/EN 60898-1
- Rated Voltage (Ue): AC 230/400~240/415 V
- Rated Insulation Voltage (Ui): 500 V
- Rated Current (In): 1 A – 63 A
- Rated Short-Circuit Breaking Capacity (Icu): 10,000 A
- Tripping Characteristics: Type B (3–5 In), Type C (5–10 In), Type D (10–20 In)
- Rated Frequency: 50/60 Hz
- Energy Limiting Class: 3
- Rated Impulse Withstand Voltage (Uimp): 6 kV
- Dielectric Test Voltage (1 min): 2 kV
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Terminal Type: Cable / U-type busbar / Pin-type busbar
- Terminal Capacity: Up to 25 mm²
- Tightening Torque: 2.5 N·m
- Mounting: DIN-rail EN 60715 (35 mm)
- Connection: Top or bottom feed
- Protection Degree: IP20
- Reference Temperature: +30 °C
- Operating Temperature Range: −25 °C to +70 °C (daily average ≤ +35 °C)
- Pollution Degree: 2
- Auxiliary Accessories: Auxiliary contact, shunt release, under-voltage release, alarm contact
- Applicable for: Industrial distribution panels, residential consumer units, and control systems
