10 Best 30v Digital Power Supply In The Us - Black Friday 2024
Best Choice1
TekpowerTekpower TP3030E DC Adjustable Switching Power Supply 30V 30A, Digital Display with Back Light
Main highlights- Output Voltage: 0- 30V DC with low ripple
- Fuse Protection, Air fan for cooling
- Front AUX output 5A max
- Current Output:0-30A DC with low ripple
- 1 Year USA warranty
9.8Exceptional
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Value for Money2
NICE-POWERNICE-POWER Dual DC Power Supply Variable: 30V 10A Adjustable Switching Regulated Series (60V 10A) Parallel (30V 20A) High Precision 5V/2A USB Port Bench Lab Power Supplies
Main highlights- Series and Parallel Function: It is very convenient to add series and parallel function, press "INDEP" which is two 30V 10A lab power supply, press "SER" button of dual power supply, you will have one 60V 10A power supply, press "PAR" button of dual power supply, you will have one 60V 10A power supply. Pressing the "PAR" button will switch to a 30V 20A power supply. This will satisfy your need for a higher voltage or higher current. It saves you the time for DC power supply, which is a good helper in your work!
- Compact Design, Quality Check, Terms of Service: the size of the bench power supply is only 15.3 * 7.3 * 8.7 inches, the weight is only 6.6 lbs, which saves you more bench space, easy to carry with you when you need. Delivery includes: dc power supply*1; power cord*1; English manual*1; low power output cable*2. If you have any questions about our lab DC power supply, please contact us and we will reply within 24 hours.
- CE & FCC Certification, Multiple Protection, Various Application: DC power supply have passed CE & FCC Certification. DC power supply variable has multiple protections: overvoltage protection, overcurrent protection, overheating protection, over power protection, short circuit protection, leakage protection. DC power supply is suitable for battery charging, arduino project, anodizing, laboratories, schools, electronic maintenance , electrolysis, electroplating, electrolysis, electrolysis, electroplating, and other electrical equipment. electrolysis, electroplating, lamp test, DIY, etc.
- 4-Digits LED Display, Encoder Precision Adjustment: Our DC power supply voltage and current values are accurate to 0.01V and 0.01A, and the encoder is used to more accurately regulate the desired current and voltage, and the refinement is made to the extreme! Two sets of encoder knobs, when the power supply is in INDEP state, you can separately adjust the current and voltage values on both sides.
- 4 in 1 DC Power Supply: Dual DC power supply meets the needs of multiple power supply specifications at one time, one dual DC power supply is equal to two 30V10A power supply/one 30V20A/one 60V10A power supply, which meets the needs of multiple operations, and can also be used as a high-power use at the same time. You no longer need to manually connect two DC power supplies in series or parallel.
9.7Exceptional
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3
JesvertyJesverty DC Power Supply Variable, 0-30V 0-10A Adjustable Switching DC Regulated Bench Power Supply with High Precision 4-Digit LED Display, 5V/2A USB Port, Coarse and Fine Adjustment SPS-3010
Main highlights- Note: The test leads that come with the unit are merely a give-away, we recommend that you prepare test leads with sufficient current capacity if your project needs long-term use of high current.
- Note: The V and A settings you set are the crossover point at which the mode switches.
- Note: Power cords and the AC input settings vary depending on the destination for the product at the factory-shipment.
- 5️⃣【Items you get & Customer service】: 1 x SPS Unit, 1 x Power Cord*, 1 set of test leads*, 1 x instruction manual (contact information included). We provide professional technical support. Should you have any problems or questions about your order, please feel free to contact the Jesverty Customer Service via Amazon or email.
- 4️⃣【Reliability and Safety】: The Jesverty SPS series is built with high-quality materials and reliable circuit designs that include multiple protection functions, such as short-circuit protection, over-load protection, grounding terminal, temperature-regulated fan, etc. to ensure performance and extend the lifespan.
- 3️⃣【Compact Body & Lightweight】: The Jesverty SPS series measured only 7.1(D)x3.35(W)x6.1(H)inches and weight of approx. 2.5lbs. It saves space on your workbench and can be moved around without any frustration.
- 2️⃣【Auto C.V. and C.C. Mode】: The Jesverty SPS series can be used as a constant-voltage*(C.V.) power supply and constant-current*(C.C.) power supply even when the load is changed. It switches automatically between CV mode and CC mode according to the changes in the load.
- 1️⃣【4-Digit Display & Power Calculation】: The Jesverty SPS series features a big bright 4-digit LED display that shows measured values of V／A／W that the unit outputs in real-time. The display resolution is up to 0.01V, 0.001A, and 0.1W.
9.6Exceptional
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4
KungberDC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black)
9.3 Precision8.7 worth the money8.0 Simple to useWhy we love it
High precision with 4-digit LED display for accurate readings.
Automatic conversion between constant voltage and current modes.
Compact, lightweight, and versatile for various applications.
9.4Excellent
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5
NICE-POWERNICE-POWER DC Power Supply Adjustable Variable 3Digital LED Display Adjustable Regulated Switching Power Supply Digital (30V 10A)
Main highlights- Stable vertical design, lightweight: DC power supply adopts stable vertical design, the rubber feet of shock absorber are at the bottom of DC power supply, which is safer and more stable when using. The size of DC power supply is 8.8 x 3.7 x 5.7inch（22.4*9.4*14.5cm）and weight 2.8lb（1.2kg）, very light and small, you could easily carry DC power supply in and out of various workplaces.
- Packaging and After-Sales: You will get 1*variable power supply, 1*output cable, 1*US standard power cable, 1*user manual, and 12 months repair with the purchase of DC power supply. If the DC power supply is damaged during the repair period, we will provide repair service. If you have any questions during use, you can contact us at any time and we will contact you as soon as possible and help you solve the problem.
- Multi-protection, automatic cooling fan: DC power supply has current limit protection, thermal protection, voltage overload protection, short circuit protection, etc. When the internal temperature of the DC power supply reaches 122℉/50℃, the fan of the power supply will automatically turn on, and when the temperature drops, the fan will automatically stop, which can effectively extend the service life of the DC power supply.
- High Precision and Screen Protection Film: The DC power supply variable has resolutions of 0.1V and 0.01A, and the DC power supply has adjustable ranges of 0-30V and 0-10A. The 3-digit backlit LED display provides more accurate and clearer readings of voltage and current values, even in low light conditions. To prevent damage to the DC power supply screen, the DC power supply has a protective film on the display.
- Diversified applications: The DC power supply variable is suitable for laboratory, school, maintenance, electrolysis, electroplating, brushing, lamp testing, aging test, battery charging, home DIY, etc. 5V/2A USB port can be used to power cell phones or other electronic devices, very convenient.
- 2024 New Upgraded Precision Encoder Knob: Unlike ordinary potentiometer knobs, the encoder knob on this variable 30V 10A DC power supply helps you set the desired value more precisely. Simply press the knob to switch each digit, then rotate the knob to set each digit in the 0-9 range.
9.3Excellent
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6
KORAD10% OffKORAD KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…
Main highlights- Compact Design with Dual 4 Digit LED Displays and Digital Controls - Switchable power input 110/220v
- Circuit protection for over load, short circuit and over temperature.
- Automatic switching between mA and A display
9.2Excellent
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7
NICE-POWERNICE-POWER DC Power Supply Variable 30V 10A, 4 Digital Display Adjustable Regulated Switching DC Lab Bench Power Supply with 5V/2A USB Charging Port
Main highlights- What You Get: 1 x Variable DC Power Supply, 1 set of Output Power Cords , 1x Input Power Cord, 1 x User Manual, and Technical Support from NICE-POWER. If you find that the power supply does not work or the screen does not display after receiving the goods, please let us know. If you have anything you don't understand in the process of use, please let us know
- Stable vertical design, lightweight and compact: The power supply of the workbench adopts a stable vertical design, and the rubber foot of the shock absorber is at the bottom of the DC power supply, which is safer and more stable when used
- Lab DC bench power supply: We have limit current protection, thermal protection, voltage overload protection, short-circuit protection.Fan of the power supply will automatically turn on when temperatures reach 122℉/50℃. Kindly Remind - For safety considerations, the DC power supply comes with only 110V input which meets the US standard voltage. 220V input is NOT available for this bench power supply
- High Precision and Film: To prevent scratches,the display screen has a protective film,which may not be obvious.If you find scratches on the screen, you can look at it carefully and you will find that there is a protective film on the screen.DC Power Supply Regulated Adjustable: 0-30 volts and 0-10 amp outputs. The 4 digital Display accuracy: 00.01 V and 0.001A, and with 5V/2A USB charging port
- Diverse applications: DC power supply is less than 3 pounds, which is suitable for laboratory, school, maintenance, electrolysis, electroplating, brush plating, lamp testing, aging testing, battery charging, home DIY and other requirements. 5v/2a USB interface can charge your mobile phone and provide power for the device you want to repair, without worrying about running out of power
9.1Excellent
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8
HANMATEKProgrammable DC Power Supply (0-30 V 0-10 A) HM310T High Precision 4-Digit Voltage Current Power Time Display Variable Switching Digital Power Supply with PC Software and USB Interface
Main highlights- [Reliability and Safety]: This variable DC regulated power supply has five powerful functions: overvoltage protection (OUP), overcurrent protection (OCP), overpower protection (OPP), overheat protection (OTP), and short-circuit protection. It has a protective function. With the automatic temperature control cooling fan, the cooling fan turns on automatically when the operating temperature exceeds 45 ° C.
- [Programmable DC Power Supply]: This programmable DC power supply has a standard USB interface on the back and supports the Modbus programming instruction set. Hardware list With programmable sequence output. Six groups of quick parameter storage features.
- [Packing]: 1 * Programmable DC power supply; 1 * CD; 1 * Power cord; 1 * Clip cord; 1 * USB cable; 1 * Manual
- [Multi-function]: Front 5V 1.5A dual USB charging interface that can be charged and repaired. The one-key output on / off switch allows you to preset the voltage and current values when the output is off, which is convenient for operation. One key for the voltage stabilization and current stabilization switch to automatically lock the keyboard to prevent erroneous operation.
- [High accuracy]: The HANMATEK variable DC regulated power supply can display the output current, voltage, and power in 4 digits. At the same time, the time can be displayed and the decimal point is automatically rounded up. Output voltage: 0-30V, output current: 10A. Voltage resolution: 10mv; Current resolution: 1mA.
9.0Excellent
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9
NaweiszDC Power Supply Variable 30V 5A Precision Adjustable Power Supply 4-Digital LED Display-with Alligator Leads for Lab Equipment, DIY Tool, Repair, Electronic Research
Main highlights- WIDE APPLICATIONS-Suitable for the electronic maintenance, laboratory, scientific research and teching,DIY tools.
- HIGH QUALITY& STABILITY-High quality material made, and make it stable output.It's built-in cooling fan with thermo-sensor will keep the power supply cool,noise reduced and life prolonged.Perfect limit current protection, thermal protection, voltage overload protection, short-circuit protection.
- ADJUSTABLE POWER SUPPLY- 0-30 volts and 0-5Amp outputs with 4 LED digital BRIGHT display ,with resolution of 0.01V（10mV)and 0.001A(1mA).
- WHAT YOU WILL GET AND ENJOY-1* dc power supply host, 1*quality standard 4mm Alligator Clip Leads with Banana Plug 20 inch length;1* US power cord, 1* user manual. You could enjoy 30-day free-returned,36-month warranty,and lifetime technology support.
- C.C & C.V.MODES AUTO CONVERSION-It's easy to adjust your desired voltage and current with coarse and fine turning knob. The constant voltage and current mode automatically switch over with load changes.
8.9Very Good
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10
HANMATEKAdjustable DC Power Supply (0-30 V 0-10 A) with Output Enable/Disable Button HANMATEK HM310 Mini Variable Switching Digital Bench Power Supply with USB Charging
Main highlights- 【Wide Application】 - Front 5V 2A USB charging interface that can be charge your devices.Applied in production line test, electrical maintenance, aging products, battery charging, laboratories scientific research and teaching and all other need DC regulated power supply.,Nice gift choice for DIY electronics hobbyist.
- 【Safe and Reliable to Use】 - Safety is our priority. The built-in fan low arc noise & low ripple,The power supply is durable and compact. Productive work since the power supply comes multiple protection of Over-voltage, over-current, over-power, over-temperature, short-circuit powerful protection function.
- 【Output switch control】 - Sometimes we need to switch between different voltage or current outputs, but we often forget to unplug the previous instrument and cause the instrument to burn out.,which often occurs in the maintenance.Output key is designed to solve this problem.By pressing the Output key, the required voltage and current can be adjusted without the actual output power,Which makes this DC power supply more secure and more energy efficient.
- 【Manufacturer's Package】 - 1 * HM310 Power supply host , 1 * Output power cord , 1* Input power cord , 1 * User manual.High quality material adopted and make it more stable output, small volume, light weight, easy to carry and move and easy operation.
- 【Auto Power Calculation】 - Intelligently calculates output voltage and current into power and displays the value on its large screen.; decimal point automatic carry & LED 4 digits display of voltage function displays.current and powe; The keyboard can be locked to prevent misoperation.
8.7Very Good
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