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    50 amp 1 pole Miniature Circuit Breaker

    5 out of 5 based on 1 reviews | Write a review
    1 pole miniature circuit breaker with 50 amp rated current, DIN rail mounting, C curve trip characteristic, can safely be used in AC 50Hz, 230/400V with a 6 kA short circuit withstand rating, which is an electrical switch to turn off the electrical circuit during a faulty condition to protect conductors.
    SKU: ATO-MCB-1P50
    30-day Returns
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    Delivery date: 6-12 days

    Circuit Breaker Information

    • Rated Current: 50 amp
    • Rated Voltage: 230/400V AC, 50Hz
    • Number of poles: 1 pole
    • 6 kA short circuit interrupting capacity
    • Accordance with IEC standard
    • C curve trip characteristic gives you the ability to configure the exact protection scheme you required

    Technical Data

    Model ATO-NB8-631PC50
    Electrical Parameters Height 86 mm
    Width 18 mm per pole
    Mounting DIN Rail
    Rated Current (In) 50A
    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)

    50 amp 1 pole Miniature Circuit Breaker Dimensions


    1 pole Miniature Circuit Breaker Details

    Tips: Two functions of miniature circuit breakers

    The two basic functions of miniature circuit breakers are short circuit trip and overload trip.

    1. Magnetic trip is a tripping method that uses the magnetic field generated by the magnetic tripping coil to attract the armature to trigger the tripping mechanism. Magnetic tripping can break the line instantly, so it is used for short-circuit protection.
    2. Thermal trip is a tripping method that uses the heat generated by the bimetallic sheet to deform and trigger the tripping mechanism. Due to the slow deformation speed of the metal sheet, it is only used for long-time overload protection.
    Existing reviews of 50 amp 1 pole Miniature Circuit Breaker
    Perfect for solar.
    I used this 50 amp 1 pole miniature circuit breaker for my 400watts solar off grid between panel and solar charge controller, it works great. Good disconnect switch. I love it.
    From: Marcus | Date: 28/06/2022
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    SKU: ATO-MCB-2P50
    Complying with IEC standard, 2-pole miniature circuit breaker, with rated current 50 amp, interrupt rating 6kA at 230/400V AC, is suitable for supplementary protection against short ciruit and over load for commercial and industrial applications.