2 pole 16 amp miniature circuit breaker provides overload and short circuit protection, which is commonly used for branch circuit protection in residential.
Circuit Breaker Information
- Rated Current: 16 amp
- Rated Voltage: 230/400V
- Number of pole: 2 poles
- 6 kA short circuit breaking capacity
- Compliance with IEC standard
- C curve trip characteristic gives you the ability to configure the exact protection scheme you required.
Technical Data
| Model | CHN-NB8-632PC16 |
| Electrical Parameters | Height | 86 mm |
| Width | 18 mm per pole |
| Mounting | DIN Rail |
| Rated Current (In) | 16A |
| Number of poles | 2P |
| Rated Voltage (Ue) | 230/400V |
| Rated Insulation Voltage (Ui) | 500V |
| Dielectric Test Voltage | 2000V |
| Reted Frequency | 50Hz |
| Short Circuit Interrupting Capacity | 6KA |
| Trip Characteristic | C Curve (5-10In) |
| Rated Short-Circuit Breaking Capacity | 6000A |
| Operating Short-Circuit Breaking Capacity | 6000A |
| Mechanical Parameters | Electrical Life | 10000 times |
| Mechanical Life | 20000 times |
| Flame Retardant Grade | V0 |
| Protection Degree | Direct installation: IP20B Installed in the distribution box: IP40B |
| Calibration Temperature | 30℃ |
| Operating Temperature | -35℃~+70℃ |
| Storage Temperature | -35℃~+85℃ |
| Tightening Torque | 2 N.m |
| Max. Tolerable Torque | 2.5 N.m |
| Terminal Size Acceptability–Min/Max | 1 mm2 / 25mm2 |
| Wire Insertion Depth | 13mm |
Circuit Breaker Dimensions (Unit: mm)

Tips: Different types of break curves of miniature circuit breaker
- A trip curve: The magnetic tripping current is (2-3) In, which is suitable for protecting semiconductor electronic circuits, measuring circuits with low-power transformers, or systems with long circuits and low currents.
- B trip curve: The magnetic tripping current is (3-5) In, which is suitable for pure resistive loads and low-voltage lighting circuits. It is often used to protect household power distribution systems, household appliances, and personal safety.
- C trip curve: The magnetic tripping current is (5-10) In, which is suitable for inductive loads and high-inductance lighting circuits, and is often used to protect power distribution lines and lighting lines with higher on-current.
- D trip curve: The magnetic tripping current is (10-20) In, which is suitable for systems with high inductive loads and large inrush currents, and is often used to protect equipment with high inrush currents, such as transformers, solenoid valves, etc.
2 pole 16 amp MCB miniature circuit breaker meets IEC standard to turn off the electrical circuit during a faulty condition to protect conductors, c curve trip characteristic, used in AC 50Hz, 230/400V with a 6 kA short circuit interrupting capacity.