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  • B48-48-5800
    Introduction
    B48-48-5800 Bidirectional Converter is a non-isolat- ed  DC/DC  converter  which  has  battery  charging  and discharging management function.  It can automatically adapt to different charging voltages, with fast charging and long service life . Module can achieve the common use of batteries of different types, capacities, and manu- facturers, adapting to the construction and maintenance needs of communication base stations.

    Features
       High efficiency and high power density
    98% efficiency and 80.6W/inpower density.
       Digital control
    Digital control, realize excellent monitoring and regulation .
       High reliability design
    One fan front-to-back air flow with latest thermal solution and experienced design .
       Excellent EMC performance
    Lower interference  and excellent susceptibility give module better compatibility.
       Global approvals
    Meet CE, UL and TUV standard.

    Charging
    Mode
    Bus Bar (Input)
    Voltage range 43.2-58VDC
    Rated voltage 53.5VDC
    Input Current <105A at 57.6VDC input <115A at 53VDC input
    Battery (Output)
    Voltage range 43.2-57.6VDC
    Rated voltage 48VDC
    Power 5760W
    Max. Current 100A
    Static Voltage Regulation < 0.5%
    Ripple < 200mV peak to peak
    Startup Time 3-8s
    Efficiency 98%


    Discharging Mode
    Battery (Input)
    Voltage range 43.2-57.6VDC
    Rated voltage 48VDC
    Input Current <105A at 58VDC input
    <115A at 53VDC input
    Bus Bar (Output)
    Voltage range 43.2-58VDC
    Rated voltage 53.5VDC
    Power 5830W
    Max. Current 110A at 53VDC
    Static Voltage Regulation < 0.5%
    Line Regulation < 0. 1%
    Load Regulation < 0.5%
    Temperature Coefficient < 0.02 % / ℃
    Dynamic Voltage Regulation < 5% for 10%-90% load, regulation time ≤50ms
    Psophometric < 2mV
    Ripple < 200mV peak to peak
    Startup Time 3-8s
    Efficiency 98%


    Other Specifications
    Operating Temp. -40 ℃ ~ 75 ℃
    Storage Temp. -40 ℃ ~ 85 ℃
    Relative Humidity < 95% (non-condensing)
    Altitude 4000m
    IP Level IP20
    Input Protection 5kA lightning protection
    Output Protection Overvoltage shutdown, short circuit protection, output fuse protection .
    Isolation 707VDC-input and output to earth
    Cooling One fan (front-to-back airflow)
    Fan Speed Temperature and output current regulated
    MTBF > 500000 hours (T_ambient: 25 ℃ ) Telcordia SR-332 Issue 1
    Acoustic Noise ≤ 55dB at 48VDC input and full load
    (T_ambient: < 30 ℃ )
    Dimensions 107Wx40.8Hx270D(mm)
    Weight 1.8Kg

    Applicable Standards
    Safety IEC60950-1, IEC60950-1,      IEC60950-1


    EMC
    EN55032 Class B (emission) IEC61000-3-2
    IEC61000-3-3
    IEC61000-4-2 (electrostatic discharge)
    IEC61000-4-3 (radiated immunity)
    IEC61000-4-4 (EFT)
    IEC61000-4-5 (surge immunity)
    IEC61000-4-6 (conducted immunity) IEC61000-4-8
    IEC61000-4-11
    Environment ETSI EN 300 019-2 (-1,-2,-3)
    ETSI EN 300 132-2


    Diagrams(Charging Mode)



    Diagrams(Discharging Mode)

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