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    50A 2 pole 5kA Miniature Circuit Breaker

    $35.69
    Complying with UL 1077 standard, 2-pole miniature circuit breaker, with rated current 50 amp, interrupt rating 5kA at 277/480V AC, is suitable for supplementary protection against short ciruit and over load for commercial and industrial applications.
    SKU: ATOCLXB2-50
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    Free shipping
    Delivery date: 6-12 days

    Circuit Breaker Information

    • Model: ATOCLXB2-50
    • Rated Current: 50 amp
    • Rated Voltage: 277/480V AC, 60Hz
    • Number of pole: 2 poles
    • 5 kA short circuit breaking capacity
    • Compliance with UL 1077 standard, meeting the requirements for supplementary protector
    • B, C and D curves for your choice - three-level trip characteristics for short circuit and overload protection for different applications
    • Breakers mount on standard 35 mm DIN rail

    Technical Data

    Standard Certifications IEC UL1077
    Electrical Parameters Height 86 mm
    Width 18 mm per pole
    Mounting DIN Rail
    Rated Current (In) 1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A (Available)
    Number of poles 1P, 2P, 3P, 4P (Available)
    Rated Voltage (Ue) (Optional) 240/415V or 230/400V 277/480V
    Rated Insulation Voltage (Ui) 500V
    Reted Frequency 50Hz/60Hz
    Short Circuit Interrupting Capacity (Optional) 6/10KA 5KA
    Trip Characteristic (Optional) B Curve (3-5In) B Curve (4In)
    C Curve (5-10In) C Curve (7In)
    D Curve (10-20In) D Curve (14In)
    Mechanical Parameters Electrical Life 8000 times
    Mechnical Life 10000 times
    Protection Degree IP20
    Calibration Temperature 30
    Operating Temperature -5℃~+40℃
    Storage Temperature -25℃~+70℃
    Tightening Torque 22 Ib-in (2 Nm)
    Terminal Size Acceptability–Min/Max 2.5 mm2(12 AWG) / 25mm2(3 AWG)

    Circuit Breaker Dimensions
    circuit breaker dimension

    Tips: What are A, B, C and D tripping curves of the circuit breaker?
    As to the miniature circuit breaker, there are a total of four kinds of magnetic tripping curve types. The tripping curve can be A/B/C/D:

    1. A-model tripping curve
      The magnetic tripping current is (2-3)In. It is suitable to protect the semiconductor electronic circuit, measurement system with small-power power transformer or system with long circuit and low current.
    2. B-model tripping curve
      The magnetic tripping current is (3-5)In. It is suitable to protect the power distribution system of the residents, household appliances and personal safety.
    3. C-model tripping curve
      The magnetic tripping current is (5-10)In. It is suitable to protect the distributing line and the lighting line with a relatively high connecting circuit.
    4. D-model tripping curve
      The magnetic tripping current is (10-20)In. It is suitable to protect the equipment with a relatively high impulse current, such as the transformer and solenoid valve and so on.
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