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    48V DC 4000W Switching Power Supply

    Affordable high performance switching power supply, 48V DC 4000W, with overload, over-voltage, overheating and short circuit protection functions. High performance switch power supply widely used in LED Strip, Audio Power Amplifier, LED Lighting, Light Box Billboard, electronic equipment, LED lighting, home appliance, etc.
    SKU: ATO-SMPS-4000-48
    30-day Returns
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    Delivery date: 6-12 days


    • Excellent magnetic core enameled wire, high temperature resistance
    • High voltage resistance, low loss, high capacity
    • Iron-silicon aluminum magnetic ring, lower working temperature
    • Highly efficient heat dissipation, low fan noise
    • 4000W 48V DC switching power supply has high working efficiency, stable output
    • Exquisite appearance, small size, stable performance


    Model ATO-MS-4000-48
    DC Voltage 48V
    Rated Current 80A
    Rated Power 4000W
    Ripple & Noise 240mVp-p
    Voltage Accuracy ±1%
    Voltage Adjustment Range ±10%
    Load Adjustment Rate <±0.5%
    Line Adjustment Rate <±0.5%
    Input Voltage Range 200V~240VAC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 86%
    AC Current 220VAC, 8A
    Inrush Current 60A 230VAC
    Setup, Rise, Holdup Time 200ms, 50ms, 20ms: 230V AC
    Protection Overload 105~135% rated output power
    Protection type: Constant current limiting, recovers automatically after fault condition is removed.
    Over temperature RTH3: Fan is always running, ≥90°C output shut down.
    Environment Working Temperature -10 ~ +50℃
    Working Humidity 20~90% RH
    Storage Temperature -20~+85℃
    Storage Humidity 10~95% RH
    Safety & EMC Withstand Voltage I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
    Leakage Current I/P-O/P, <6mA at 1.5kVAC; <1.5mA at 220VAC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC
    Others Dimension 312*190*95mm (L*W*H)
    Weight 7.0kg


    48V DC Switching Power Supply Details

    SMPS Power Supply Applications

    • Power Tools
      Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
    • Offices Devices
      Computer, Printer, LCD Monitor, Scanning Machine, etc.
    • Electrics & Household Appliance
      TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
    • Industrial Equipemnt
      Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.

    Tips: What is the difference between a switching power supply and a linear power supply?

    What is a linear power supply?
    Linear power supplies are designed for low noise and are generally considered quiet because there is no high frequency switching. They can be used wherever excellent regulation and/or low ripple is required, as well as low electromagnetic emissions and excellent transient response. Linear power supplies can only step down the input voltage to produce a lower output voltage. Linear power supplies typically use large transformers to step down the voltage from the AC line to a much lower AC voltage, and then use a series of rectification circuits and filtering processes to produce a very clean DC voltage. The downside is weight, size, and inefficiency.

    What is a switching power supply?
    Switching power supplies are designed for high efficiency and small size. They contain a switching regulator to efficiently convert electrical energy. Switching DC power supplies regulate the output voltage through a process called pulse width modulation (PWM). The PWM process generates some high-frequency noise, but enables switching power supplies with very high power efficiency and small size. With good design, switching power supplies can have excellent load and line regulation. They can step up or step down the input voltage to obtain the desired output voltage. Switching power supplies are more efficient than linear regulators because switching transistors dissipate very little power when used as switches. However, this switching creates noise, which can be reduced by filtering.

    In today's electronics, switching power supplies are often preferred due to cost, size and efficiency. The decision to use a linear or switching power supply depends on the application and overall system requirements.

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