Circuit Breaker Information
- Rated Current: 63A
- Rated Voltage: 230/400V AC, 50Hz
- Number of poles: Three pole
- 6 kA excellent short circuit breaking capacity
- Suitable for overload and short circuit protection
- IP 20 finger safe design and 35mm DIN rail mountable
- C curve trip characteristic gives you the ability to configure the exact protection scheme you required
Technical Data
Model | CHN-NB8-633PC63 |
Electrical Parameters | Height | 86 mm |
Width | 18 mm per pole |
Mounting | DIN Rail |
Rated Current (In) | 63A |
Number of poles | 3P |
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 Dimension (Unit: mm)

Tips: Difference between circuit breaker and contactor
Circuit breaker plays a protective role in extinguish arc and disconnecting circuit. Contactor refers that coil is used for the on-off control of circuit. When contactor is charged, the circuit that is normally connected will be cut off and the circuit that is normally closed will be connected.
- Circuit breaker is mainly used for protection and its common protections include overload protection, short circuit short delay and short circuit delay. In addition, there are other protections that depend on brand and model, including under-voltage, over-voltage etc. Switch can be manually operated or electric-driven. Installation modes are various such as fixed installation and drawer etc. According to current and working voltage level, they can be divided into many types.
- Contactor mostly used in the industrial control is mainly introduced into manufacturing television. Of course, it also can be used in heater and double power switch. The on-off control of contactor is achieved by controlling coil voltage. According to different arc structures, they can be divided into vacuum contactor and standard contactor. According to different control voltage, they can be categorized into direct current contactor and alternating current contactor and its main accessories are auxiliary contactor.
63 amp 10kA mini circuit breaker is intended for the short circuit and overload protection in the 50Hz AC circuit, 230/400V AC supply. 3 pole MCB in accordance with IEC standard, c-curve trip characteristic to suit most applications.