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    2 amp 4 pole Miniature Circuit Breaker

    5 out of 5 based on 1 reviews | Write a review
    Compact miniature circuit breaker, 2 amp, 4 pole, with 6 kA short circuit breaking capacity at 230/400V AC, and C curve trip characteristic, is designed for short circuit and overload protection.
    SKU: ATO-MCB-4P02
    30-day Returns
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    Delivery date: 6-12 days

    Circuit Breaker Information

    • Rated Current: 2 amp
    • Rated Voltage: 230/400V AC, 50Hz
    • Number of poles: 4 pole
    • 6 kA short circuit interrupting capacity
    • 35mm DIN rail mounted
    • It can be manually switched ON and OFF as similar to normal switch if necessary
    • Thermal-magnetic overcurrent protection, three levels of short circuit protection

    Technical Data

    Model ATO-NB8-634PC02
    Electrical Parameters Height 86 mm
    Width 18 mm per pole
    Mounting DIN Rail
    Rated Current (In) 2A
    Number of poles 4P
    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)

    2 amp 4 pole Miniature Circuit Breaker Dimensions


    4 pole Miniature Circuit Breaker Details

    Tips: Basic requirements for the operating mechanism of a circuit breaker
    Because the effective and reliable movement of a circuit breaker depends on the performance and quality of the operating mechanism in a larger degree, according to the different circuit breakers, the equipped operating mechanism must satisfy the required property and reliability. It mainly includes the following points:

    1. Possess the closing maintaining function. When the operating command lasts a short period and the operating function has short coordination, there must be a closing maintaining mechanism, so as to ensure that the circuit breaker is still in the closing position after the closing command and operating function disappear.
    2. Possess a relatively short separating time. The closing time should be irrelevant to the action speed of the operator and the time length of command transmitting. At least, the separating speed must be required to not likely to result in the arc reignition, so as to shorten the separating time as much as possible and reduce the existing time of the short-circuit fault, thus improving the stability of the power system and minimizing the fault scope as much as possible.
    3. Possess an anti-pumping equipment. In order to avoid the continuous multiple phenomenon of the circuit breaker after closing, it is necessary to use mechanical or electric method, so that the circuit breaker can not be divided and closed after the break, so as to reduce unnecessary actions.
    4. Possess an interlock equipment. With the interlock equipment in the operating mechanism, the reliability of the circuit breaker can be guaranteed. As a result, when the circuit breaker is in a kind of status, being affected by the wrong action of the operating mechanism, the general operating mechanism must possess separating position interlock, low-pressure and high-pressure interlock, position interlock in the spring mechanism and so on.
    Existing reviews of 2 amp 4 pole Miniature Circuit Breaker
    The MCB functions as advertised.
    I ordered this miniature circuit breaker as my solar panel array cut-off and safety breaker. The DIN-Rail mount works perfectly in my small distribution box. It is easy to install and works excellent. I will definitely buy more!
    From: John | Date: 15/04/2022
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