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    Picture of 0-30V 20/30A Variable DC Power Supply
    Picture of 0-30V 20/30A Variable DC Power Supply
    Picture of 0-30V 20/30A Variable DC Power Supply

    0-30V 20/30A Variable DC Power Supply

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    SKU: PH-VDCPS-30V20
    $528.46
    ● Digital adjustable DC power supply is continuously adjustable within the range of 0 to 30 volt output voltage and 0-20A/30A output current. ● Provides overvoltage protection, overtemperature protection, output lockout, surge protection, and a 4-digit LED voltage and current display. ● Suitable for experimental current testing, aging tests, electronic repair, and DIY projects.
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    Overview

    Digital DC power supply is a variable regulated DC power supply, available with 0 to 30 volt output voltage, 0 to 20 amp/30 amp output current, 600W/900W output power,  CC/CV automatic switching, 4 digit LED display, overvoltage and overheat protection.

    30V 20A/30A variable DC power supply feature

    Feature

    • 0–30V 20A/30A Output: This adjustable DC power supply offers a wide output range of 0-30V voltage and 20A/30A current.
    • Automatic CC/CV Mode Switching: Automatically switches between Constant Current (CC) and Constant Voltage (CV) modes, maintaining stable output while protecting connected devices.
    • Clear 4 Digit LED Display: The clear LED screen shows real-time voltage and current for easy monitoring.
     

    Details

    1. Precision Adjustable Control: Fine knobs enable accurate voltage and current adjustment within the 0–30 volt range.
    2. Efficient Cooling System: A temperature-controlled fan and ventilation holes ensure reliable heat dissipation for stable operation.
    3. Multiple Safety Protection: Includes over-voltage, over-current, overload, short-circuit, and over-temperature protection for safe operation.
    30V 20A/30A variable DC power supply details

    30V 20A/30A Adjustable DC Power Supply Panel

    0-30V 20A/30A variable DC power supply panel details

     

    Specs
    Model PH-K3020D PH-K3030D
    Input Voltage 110V or 220V AC (+/-10%)
    Output Voltage Range 0-30V
    Output Current Range 0-20A 0-30A
    Output Power 600W 900W
    Frequency 50Hz/60Hz
    Output Type Single Output with Low Power Situation Connectors (Front) and High Power Situation Connectors (Back)
    Display 4 Digit
    Voltage Display Accuracy ±0.5%
    Current Display Accuracy ±0.5%
    Efficiency >85%
    Voltage Regulation
    Load Regulation (10-100%) 50mV
    Line Regulation (200-240VAC) 20mV
    Ripple & Noise (P-P) 30mV
    Current Regulation
    Load Regulation (10-100%) 20mA
    Line Regulation (200-240VAC) 20mA
    Ripple & Noise (P-P) 20mA
    Others
    Protection Overload and Overvoltage Protection
    Operating Ambient -10℃ to + 60℃/ 30%RH to 90% RH
    Certification CE
    Warranty 12 Months
    Size 380 (W) x 260 (H) x 170 (D) mm
    Weight 15kg
    Package List 1 x DC Power Supply Host, 1 x Output Power Cord, 1 x User Manual
    Application
    Adjustable DC power supply for r&d and lab testing

    R&D and Lab Testing

    Adjustable DC power supply for electronics repair

    Electronics Repair

    Adjustable DC power supply for battery charging and testing

    Battery Charging and Testing

    Adjustable DC power supply for production line inspection

    Production Line Inspection

    FAQ

    Q1: Can I connect a variable DC power supply to different types of loads?

    Yes, these power supplies handle resistive, capacitive, and inductive loads. Built-in protections ensure stable operation across all load types. This versatility makes them ideal for lab experiments, electronics testing, and battery charging applications. Users can rely on consistent output regardless of load characteristics.

    Q2: What safety features do variable DC power supplies have?

    They typically include over-voltage, over-current, short-circuit, and over-temperature protection. Some models also have soft-start to prevent voltage spikes at power-on. These features protect both the connected device and the power supply itself. Properly set protection levels are critical for safe operation.

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