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    25 amp 1 pole Miniature Circuit Breaker

    5 out of 5 based on 2 reviews | Write a review
    10kA miniature circuit breaker with C curve trip characteristics in accordance with IEC standard, 25 amps current rating, excellent breaking capability for its compact size, protect against overloads and short circuits in conductors.
    SKU: ATO-MCB-1P25
    30-day Returns
    Free Shipping
    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

    Model ATO-NB8-631PC25
    Electrical Parameters Height 86 mm
    Width 18 mm per pole
    Mounting DIN Rail
    Rated Current (In) 25A
    Number of poles 1P
    Rated Voltage (Ue) 230/400V
    Rated Insulation Voltage (Ui) 500V
    Dielectric Test Voltage 2000V
    Rated 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)

    25 amp 1 pole Miniature Circuit Breaker Dimensions


    1 Pole Miniature Circuit Breaker Details

    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.

    Existing reviews of 25 amp 1 pole Miniature Circuit Breaker
    Worked as expected and I would buy again!
    Needed miniature circuit breaker for solar rated at 25 amps. Running great so far. Good disconnect switch. Had 18 amps running through it no problems. This MCB worked as expected with good quality and I would buy again.
    From: Alaska | Date: 19/05/2022
    Was this review helpful? Yes No (0/0)
    A functional 25A circuit breaker
    The price was so cheap that I bought five circuit breakers at a time, and the circuit breaker in my home was aged, I changed a new one. The quality is very good, just installed, the operation is sensitive, and the circuit protection is very safe.
    From: Chuck | Date: 30/11/2018
    Was this review helpful? Yes No (0/0)
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