✅ CHINT NB1-63 C16 Miniature Circuit Breaker – 1P, 16A, C Curve, 6kA Breaking Capacity
Description (English):
This CHINT NB1-63 is a low voltage miniature circuit breaker (MCB) designed for dependable protection in residential, commercial, and light industrial applications. It is a 1P circuit breaker with 1 protected pole, a rated current of 16A, and a C tripping curve, making it ideal for mixed loads such as lighting circuits, small motors, and socket outlets.
The MCB features a rated short-circuit breaking capacity of 6kA at 230V AC according to EN/IEC 60898-1, and up to 50kA at 220–240V AC under EN/IEC 60947-2 standards, ensuring strong protection against overloads and short-circuit faults.
The device includes a toggle control mechanism and a trip indication feature for easy fault identification. It complies with both industrial (EN/IEC 60947-2) and residential (EN/IEC 60898-1) norms. The VisiTrip and VisiSafe technologies enhance operational safety and maintenance efficiency.
With a robust mechanical life of up to 20,000 cycles and an electrical life of 10,000 cycles, this circuit breaker offers long-term reliability. It mounts easily on standard DIN rails and fits compactly into panels with its 18mm width (2-pitch) form factor.
Other features include a 500V rated insulation voltage, 6kV impulse withstand voltage, IP20/IP40 enclosure protection, and wide ambient operating temperatures from -35°C to +70°C.
Specifications (English):
Model: NB1-63
Poles: 1P
Rated Current [In]: 16A
Curve Type: C
Breaking Capacity: 6kA at 230V AC (EN/IEC 60898-1)
Insulation Voltage [Ui]: 500V AC
Impulse Voltage [Uimp]: 6kV
Standards: EN/IEC 60898-1, EN/IEC 60947-2
Mounting: DIN rail, 2 pitch (18mm width)
Protection Class: IP20 (IP40 in enclosure)
Operating Temperature: -35°C to +70°C
Mechanical Life: 20,000 cycles
Electrical Life: 10,000 cycles
Tightening Torque: 2 Nm
Wire Capacity: 1–25mm² (rigid), 1–16mm² (flexible)