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    63 amp 2 pole Miniature Circuit Breaker

    5 out of 5 based on 1 reviews | Write a review
    Small-size circuit breaker features 63 amp current rating, 2 poles, 6 kA interrupt capacity, DIN rail mounting and C curve trip characteristic. As IEC listed, MCB is suitable for protecting the electrical equipment from over load and short circuit.
    SKU: ATO-MCB-2P63
    30-day Returns
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    Delivery date: 6-12 days

    Miniature circuit breaker is characterized by compact structure, reliable performance, good interrupt capacity and small size, widely used as short circuit and overload protector in industrial, commercial and residential areas.

    Circuit Breaker Information

    • Rated Current: 63 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 ATO-NB8-632PC63
    Electrical Parameters Height 86 mm
    Width 18 mm per pole
    Mounting DIN Rail
    Rated Current (In) 63A
    Number of poles 2P
    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 Dimensions (Unit: mm)

    63 amp 2 pole Miniature Circuit Breaker Dimensions


    2 pole Miniature Circuit Breaker Details

    Tips: Types of the low-voltage circuit breakers
    The low-voltage circuit breaker is also named as the automatic air switch. It is mainly used as the power switch in the low-voltage distributing line or switch cabinet (box) not operated frequently and can be used to control the motor not started frequently. When there is any serious overcurrent, overload, short circuit, phase loss, electricity leakage and other faults, it can cut off the power supply automatically and play a role of protection.

    1. Air circuit breaker in frame type(conventional)-ACB
      All components of ACB are installed in one insulated metal frame. It is normally the open-type. It can be equipped with several accessories, so the exchange of contact terminal and component are rather convenient. It is mostly used for the main switch of the power terminal.
    2. Molded case circuit breaker-MCCB
      MCCB can cut off the current automatically when the current exceeds the current tripping setting. MCCB usually includes the thermomagnetic tripping unit. However, the large-size MCCB will be equipped with the solid tripping sensor. It is appropriate for being the protective switch of the branch.
    3. Miniature circuit breaker-MCB
      MCB is a kind of terminal protective equipment which is mostly extensive used in the power distribution unit of the architecture electric terminal. It is used for the single-phase, three-phase short circuit, overload and over pressure protections below 125A, including the single pole 1P, dipolar 2P, tripolar 3P and quadrupole 4P.
    Existing reviews of 63 amp 2 pole Miniature Circuit Breaker
    I am happy with this purchase.
    I got one of this 2 pole miniature circuit breaker to disconnect the solar panels from the controller and to protect the whole system. This is working well. Very easy now to turn power on and off to the charge controller. I am happy with this purchase.
    From: Jonathan | Date: 20/05/2022
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