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25 amp 1 pole Miniature Circuit Breaker


$53.99
10kA miniature circuit breaker with C curve trip characteristics in accordance with IEC standard, 25 amps current rating, exc
SKU: CHN-MCB-1P25
Free Shipping Worldwide
Delivery date: 6-12 days

Circuit Breaker Information

  • Rated Current: 25A
  • Rated Voltage: 230/400V AC, 50Hz
  • Number of poles: 1 pole
  • 6 kA short circuit breaking capacity
  • Accordance with IEC standard
  • Standard 35 mm DIN rail mounting
  • C curve trip characteristic gives you the ability to configure the exact protection scheme you required

Technical Data

ModelCHN-NB8-631PC25
Electrical ParametersHeight86 mm
Width18 mm per pole
MountingDIN Rail
Rated Current (In)25A
Number of poles1P
Rated Voltage (Ue)230/400V
Rated Insulation Voltage (Ui)500V
Dielectric Test Voltage2000V
Reted Frequency50Hz
Short Circuit Interrupting Capacity6KA
Trip CharacteristicC Curve (5-10In)
Rated Short-Circuit Breaking Capacity6000A
Operating Short-Circuit Breaking Capacity6000A
Mechanical ParametersElectrical Life10000 times
Mechanical Life20000 times
Flame Retardant GradeV0
Protection DegreeDirect installation: IP20B
Installed in the distribution box: IP40B
Calibration Temperature30℃
Operating Temperature-35℃~+70℃
Storage Temperature-35℃~+85℃
Tightening Torque2 N.m
Max. Tolerable Torque2.5 N.m
Terminal Size Acceptability–Min/Max1 mm2 / 25mm2
Wire Insertion Depth13mm

Circuit Breaker Dimension (Unit: mm)

25 amp 1 pole Miniature Circuit Breaker Dimensions

Tips: Circuit breaker structure
A circuit breaker is composed of conductive circuit, separable contact, arc extinguishing device,  insulation component, base, transmission mechanism, operating mechanism and other components. The conduction circuit is used to carry the current, and the separable contact is the executive element to connect or break the circuit, and the arc extinguishing device is used to extinguish the arc quickly and reliably, so that the circuit can finally be disconnected. Compared with other switches, the arc extinguishing device of the circuit breaker has the strongest arc extinguishing ability and the structure is more complex. The motor is on the contact points and the power operating mechanism by a transmission mechanism to drive the transmission force. The operation mode can be divided into manual, electric, pneumatic and hydraulic. Some circuit breakers (such as oil circuit breakers, six sulfur fluoride circuit breakers) are not included in the body of the circuit breaker, but are used as an independent product to provide circuit breaker selection.