CHINT NXB-40 Miniature Circuit Breaker (MCB),
it is engineere to deliver overload and short-circuit protection in AC 230V, 50/60Hz electrical systems.
and it is Designe for residential, commercial,
and light industrial applications, this compact breaker ensures positive isolation and reliable performance.
With a rated current range of 6–40A and a breaking capacity of 4.5kA, the NXB-40 combines safety, precision,
and durability. It meets IEC/EN60898-1 standards and features a long mechanical and electrical lifespan, making it a dependable solution for power distribution systems.
- Compliant Standards: IEC/EN60898-1
- Certifications: CE, RoHS compliant
- Primary Function: Overload and short-circuit protection; positive isolation
- Rated Current (In): 6A, 10A, 16A, 20A, 25A, 32A, 40A
- Rated Voltage (Ue): AC 230V
- Rated Frequency: 50/60Hz
- Thermal-Magnetic Release: Type C and Type D curves
- Number of Poles: 1P+N
- Rated Short-Circuit Breaking Capacity (Icu): 4.5kA
- Rated Service Short-Circuit Capacity (Ics): 4.5kA
- Rated Impulse Withstand Voltage (Uimp): 4kV
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Power Consumption per Pole:
- 6–10A: 2W
- 16–32A: 3.5W
- 40A: 5W
- Terminal Cross-section: 1–10 mm² (Cu wire)
- Standard Connection Torque: 1.5 N·m
- Maximum Torque: 2.0 N·m
- Wire Insertion Depth: 10 mm
- Reference Temperature: 30°C
- Operating Temperature Range: –35°C to +70°C
- Storage Temperature Range: –35°C to +85°C
- Rated Altitude: ≤2000 m
- Protection Degree:
- Direct Mounting: IP20
- Installed in Distribution Box: IP40
- Mounting Type: TH35-7.5 DIN rail mounting
- Cable Entry: Top or bottom
- Compatible Accessories: AX-X1, AL-X1, SHT-X1, OVT-X1, UVT-X1, OUVT-X1
