Circuit Breaker Information
- Rated Current: 4 amp
- Rated Voltage: 230/400V AC, 50Hz
- Number of pole: 2 poles
- 6 kA short circuit breaking capacity
- Compliance with IEC standard
- C curve trip characteristic
- Breakers mounting on standard 35 mm DIN rail
Technical Data
Model | CHN-NB8-632PC04 |
Electrical Parameters | Height | 86 mm |
Width | 18 mm per pole |
Mounting | DIN Rail |
Rated Current (In) | 4A |
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: Features of miniature circuit breaker
- The rated short-circuit breaking capacity is high, and some rated current levels can reach more than 10KA.
- Miniature circuit breaker has double wiring function, which can easily connect standard bus bar and flexible wire.
- Mini circuit breaker is combined terminal block with finger protection, higher safety.
- With energy storage mechanism operation, the contacts close quickly, which overcomes the adverse effects caused by the speed of manual operation of the handle, and improves the service life of the product.
- A variety of accessories to choose from, and modular and flexible combination, user installation is very convenient.
- The shell and some functional parts are made of high flame-retardant, high temperature resistant and impact resistant plastics.
- High current limiting coefficient and economical price.
4 amp 2 pole miniature circuit breaker is an electrical switch that meets IEC standard to provide the supplementary protection for the electrical equipment with 6kA short circuit breaking capacity, with C curve trip characteristic, safety used in DIN rail mounting.