Shopping cart Close

You have no items in your shopping cart.

All Categories
    Menu Close
    Search store Close
    Picture of 30V 20A Linear Adjustable DC Power Supply, 600W
    Picture of 30V 20A Linear Adjustable DC Power Supply, 600W
    Picture of 30V 20A Linear Adjustable DC Power Supply, 600W

    30V 20A Linear Adjustable DC Power Supply, 600W

    1 review(s) | Add your review
    SKU: PH-DCPS-3020
    $651.59
    ● 20 amp 30 volt wide range adjustable, stable output with low ripple. ● Linear regulation, precise and reliable, meeting the needs of precision electronic testing and experiments. ● Built-in multiple protections against overcurrent and short circuit, effectively ensuring the safety of equipment and loads. ● Suitable for multiple scenarios such as scientific research experiments, teaching and training, production line testing, and equipment maintenance.
    *
    🚚 Free shipping
    ⏱️ Delivery: 6-12 days
    🔙 30-day Returns
    Related products

    30V 10A Linear Adjustable DC Power Supply, 300W

    ● Adopts a low-ripple linear topology, providing pure and stable power supply for precision electronic testing. ● Equipped with multiple safety protections such as overcurrent and overvoltage, which is efficient and reliable. ● The efficiency is greater than 65%, the recovery time is ≤100μs, and it can operate stably for a long time. ● A variety of input voltages are available, adapting to the power grid environments in different regions of the world.
    $550.49

    30V 30A Linear Adjustable DC Power Supply, 900W

    ● 900W high power, 30V voltage and 30A current continuously adjustable, easily meeting the power supply needs of various devices. ● Ripple noise of 0.5mV, excellent load and linear regulation accuracy, providing a pure and reliable power supply environment. ● High conversion efficiency, reducing energy consumption and heat generation, making long-term full-load operation more stable and durable. ● User-friendly design with a portable handle for easy movement of the device in various scenarios.
    $889.69

    30V 60A Linear Adjustable DC Power Supply, 1800W

    ● 30V/60A continuously adjustable—delivers flexible power to suit a wide range of devices. ● Thoughtfully integrated carry handle allows quick and easy relocation across different workspaces. ● 0.5mV noise with exceptional load and line regulation, ensuring clean, stable power for sensitive applications. ● Minimizes energy loss and heat buildup, enabling long‑term full‑load operation with enhanced reliability.
    $1,796.99

    30V 100A Linear Adjustable DC Power Supply, 3000W

    ● 0 to 30V DC at up to 100A, continuously adjustable, with 3000W high-power output. ● Supports 110V/220V±10% AC input and 50/60Hz dual frequency, which can be stably adapted to global scenarios. ● Equipped with overcurrent and overvoltage double protection, ensuring safe use. ● Features a high-precision digital display and universal wheels, with a user-friendly design.
    $3,269.89

    30V 150A Linear Adjustable DC Power Supply, 4500W

    ● 30 volt 150 amp continuously adjustable, suitable for diverse testing and power supply scenarios. ● Supports 110V/220V±10% wide-range AC input, compatible with different power grid environments worldwide. ● Built-in overcurrent and overvoltage protection functions with quick response, which can effectively protect the safety of equipment and loads. ● Digital display screen is easy and intuitive to operate, allowing precise setting of required parameters.
    $5,811.49
    Picture of 30V 200A Linear Adjustable DC Power Supply, 6000W

    30V 200A Linear Adjustable DC Power Supply, 6000W

    ● Boasting a continuously adjustable output of 0–30V and 0–200A, adapt to a wide array of testing and power supply scenarios. ● Digital display provides a clear, user-friendly interface, enabling operators to set and monitor required parameters with precision and ease. ● Supports a wide-range AC input of 110V/220V ±10%, ensuring seamless operation across diverse power grid environments worldwide. ● Integrated with overcurrent and overvoltage protection that delivers rapid response, effectively protect the equipment.
    $6,021.49
    Overview

    Powerhome 30V 20A linear DC power supply delivers exceptional value, featuring a high-performance large transformer for stable AC-to-DC conversion. It has a clear 3-digit LED digital display, and a robust 600W power rating, with adjustable current from 0 to 20A and voltage from 0 to 30V. This versatile unit empowers users to precisely match power output to the unique requirements of diverse devices, ensuring uncompromising performance and reliable safety for every application—all at an unbeatable price point.

    Linear Adjustable DC Power Features

    Feature

    • Stable Conversion: Stable transformers are used to achieve AC-DC conversion, outputting pure and stable direct current.
    • Professional-grade Performance: Ripple as low as 0.5mV, excellent load and linear regulation accuracy, and outstanding temperature stability.
    • Suitable for Multiple Scenarios: Can be used in professional scenarios such as scientific research and development, laboratory teaching, electronic production line testing, industrial equipment debugging, and maintenance testing.
     

    Details

    1. Portable Design: Built with a heavy-duty carrying handle, this unit enables effortless transport and relocation between workstations or lab environments, ideal for on-the-go testing needs.
    2. Dual Adjustment Knobs: The coarse adjustment knob and the fine-tuning knob delivers precise, incremental adjustments—striking the perfect balance between operational speed and output accuracy.
    3. High-visibility Readout: The bright LED digital display provides real-time voltage and current readings, ensuring clear, easy-to-read data even in challenging lighting conditions, from bright lab spaces to dim work areas.
    30V 20A Linear Adjustable DC Power Supply Details

    30V 20A Linear DC Power Supply Structure


    30V 20A Linear Adjustable DC Power Supply Structure

    Specs
    Model PH-JK3020D
    Input Voltage 110V or 220V AC (+/- 10%)
    Output Voltage Range DC 0-30V
    Output Current Range 0-20A
    Output Power 600W
    Frequency 50Hz/60Hz
    Output Type Dual
    Display 3 digit
    Display Accuracy ≤ ±0.1%＋2d
    Voltage Display Resolution 100mV
    Current Display Resolution 100mA
    Efficiency >65%
    Voltage Regulation
    Load Regulation (CV) 1×10-3+8mV
    Line Regulation (CV) 1×10-3+3mV
    Ripple & Noise (P-P) 0.5mV
    Temperature Coefficient 300PPｍ/℃
    Current Regulation
    Load Regulation (CC) ≤5mA
    Line Regulation (CC) 2×10-3+3mA
    Temperature Coefficient 500PPｍ/℃
    Others
    Protection Over Load and Over Voltage Protection
    Recovery Time ≤100µs
    Operating Ambient 0℃ to + 40℃/ 85%RH
    Storage Ambient -10℃ to + 80℃/ 80%RH
    Warranty 12 Months
    Size 303 (L) x 255 (W) x 155 (H) mm
    Weight 15kg
    Application
    Electrochemical Experiment

    Electrochemical Experiment

    Automotive Motor

    Automotive Motor

    Electronic Component Testing

    Electronic Component Testing

    Display Screen and Electronic Device

    Display Screen and Electronic Device

    FAQ

    Q1: How do I choose the right linear DC power supply for my needs?

    When selecting a linear adjustable DC power supply, prioritize matching your voltage and current needs first, ensuring it delivers sufficient power and covers your desired adjustment range. Look for precise controls and display accuracy for reliable output, and prioritize essential protections like overcurrent and short-circuit safeguards, along with good temperature stability. Choose a reputable manufacturer for reliability, and factor in portability, noise levels, and ease of use. Finally, evaluate long-term durability and warranty to ensure your investment aligns with your needs, helping you select a unit that fits your specific requirements.

    Q2: How do overcurrent and short-circuit protection functions effectively protect linear DC power supply?

    The overcurrent and short-circuit protection functions of the linearly adjustable DC power supply can quickly cut off the output or limit the current when the load current exceeds the set threshold or an accidental short circuit occurs. This prevents device components from being burned out or circuits from overheating due to overcurrent, while also protecting the power supply itself from damage, thereby effectively ensuring the safe and stable operation of the load equipment and the power supply system.

    1 review(s)
    5.0 1
    Write your own review Close
    *
    *
    Atticus | 7/21/2026 8:48 AM
    Solid 30V 20A Linear DC Power Supply for My Bench
    I bought this 30V 20A linear DC power supply for my electronics bench, and it has been a great addition to my setup. The output is clean and stable with very low ripple, and the voltage and current adjustments are accurate. It handles 600W loads without a problem and feels solidly built. A reliable power supply for daily testing and DIY projects.
    Information
    Customer service
    Payment options
    Copyright © 2026 PowerHome.com. All rights reserved.