10 Best Adjustable Power Supply 0 30v 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
9.7Exceptional
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Value for Money2
Circuit SpecialistsLinear Power Supply Adjustable 0-30V - 0-10A Output with LED Display and Remote Sensing Terminal Strip - Ideal for Lab and Educational Use - CSI3010X
Main highlights- Utilizes SMD Technology for Reliable Performance and Long Life"
- Output by Front Panel Banana Jacks and Covered Terminal Strip for Remote Voltmeter Sensing at the Load"
- Easy-to-Use Front Panel with On/Off Switch, Multi-Turn Knob, and Screwdriver Adjustment for Precise Output Control"
- Regulated Linear Power Supply CSI3010X - Adjustable 0-30V, 0-10A Output, LED Display, Pre-Settable Current & Voltage Levels"
- Allows the User to Pre-Set the Current Output and Provides Precise Output Control"
- Ripple & Noise CV 2mV rms, CC 5mA rms, Ensuring High Precision Output and Stable Performance"
- Capable of Delivering High Currents of Up to 10A, Perfect for Demanding Applications"
- Large LED Display Shows Both Volts & Amps, Perfect for Monitoring Output Levels in Real-Time"
- Weighing 15kg, the CSI3010X is Built to Last and Perfect for Professional and Industrial Use
- Based In Tempe, Arizona with top-rated U.S-based customer support.
9.6Exceptional
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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.
9.5Excellent
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4
NANKADF28% OffDC Power Supply Variable, Bench Power Supply with Encoder Adjustment Knob, Output Enable/Disable Button, Adjustable Power Supply with USB Quick-Charge, Short Circuit Alam (30V 10A Black)
Main highlights- USB Fast Charging Port: The variable power supply is configured with an 18W fast charging port. No more mplaining about mobile phones or repaired devices not being charged in time. The NANKADF dc power supply allows you to avoid this dilemma. It charges your devices quickly anytime, anywhere.
- Precise 4-digit LED Display: The dc power supply is equipped with a high-definition 4-digit display with data accurate to 0.01 V and 0.001 A. It has constant voltage (C.V.) and constant current (C.C.) modes, which can be switched automatically. You can see the working status indicator on the display. Additionally, you can adjust the brightness of the screen according to your needs.
- Overcurrent Protection: When the OCP function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. Protect the adjustable power supply and load from damage.
- Output Enable/Disable Button: In the process of using the bench power supply, Output button can prevent us from forgetting to turn off the output and causing damage to the load. Just press this button to turn on or turn off the output of the power supply. This makes it more convenient for you to use the variable power supply.
- High-precision Encoder Knob: Different from general knobs, this DC power supply has a precise encoder knob. You can press the knob to switch each digit, and then turn the knob to customize each digit in the range of 0-9. Set the voltage or current you want more accurately.
- Compact and Lightweight: The measures of the variable dc power supply is only 7.51 x 3.56 x 5.81 inch and the weight is only 2.47 pounds, which saves more space on your workbench and is convenient for you to carry when you need it.
9.2Excellent
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5
MefapeAC110V Bench Power Supply, 0-30V 0-20A Variable Power Supply, DC Power Supply Variable, Adjustable Switching Regulated Lab Power Supply, High Precision DC Power Source
Main highlights- Variable Power Supply equipped with multiple protections to fend off over-voltage, short-circuit, over-temperature & over-power
- Regulated Lab Power Supply has a thickened steel housing and a portable handle
- DC Power Supply Variable features a switch between constant voltage and constant current
- Bench Power Supply features coarse adjustment & fine tuning for high-precision regulated power supply, stable and consistent
- Bench Power Supply features an LCD display that provides real-time readings, accurate to 0.01V and 0.01A
- AC110V Bench Power Supply is capable of providing a variable voltage range of 0-30V and a variable current range of 0-20A
9.1Excellent
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6
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.
8.9Very Good
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7
KaibriteDC Power Supply Variable 0-30V 0-20A, Adjustable Switching Regulated DC Bench Power Supply, High Precision 4-Digit Multiple Protection
Main highlights- 【Protection Functions】Safety is our priority, our product has have safety protections, adjustable overvoltage protection (OVP), short circuit current limiting protection (OCP), overtemperature protection (OTP), overpower protection (OPP).
- 【Product Parameters】Input voltage: 110V 60Hz; Output Voltage: DC 0-32V Continuously Adjustable; Output current: DC 0-20A continuously adjustable; Display accuracy: +1%+1 word
- 【High Quality】High quality material adopted and make it more stable output, small volume, light weight, easy to carry and move and easy operation, greatly improving its working efficiency and lifespan.
- 【Excellent Performance】This DC power supply is a professional power supply regulation device, you can easily tune it within 0-32V and 0-20A. Very durable and easy to observe.
- 【Application】Our product suitable for aging test of factory products; Battery Charging Industry; Inverter industry and LED manufacturing industry.
8.6Very Good
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8
FNIRSIFNIRSI DPS-150 DC Power Supply Variable, 0-30V 0-5A Adjustable DC CNC Power Supply with 4-Digit IPS Display, <20mV Power Ripple, PD/QC/DC Input, PC Programmable Regulated Switching Power Supply
Main highlights- Small and portable: Despite its powerful functions, DC power supply has a compact design and small size, which makes it easy to carry and also save more space on your workbench. You can use it in various scenarios such as laboratory, repair, DIY, etc
- New upgrade: FNIRSI DPS-150 DC power supply supports PC, QC and DC input modes. This switching power supply is equipped with a PC programmable output function, 6 groups of output parameters can be preset to quickly adjust the output voltage and current
- Multiple security protection: Adjustable power supply built in 8 advanced safety protection mechanisms, including overvoltage protection, current protection, short circuit protection, overheating protection, etc., to protect your equipment safety
- High-performance stable output: 30 V, 5 A, 150 W DC power supply variable, 0.01 V, 0.001 A high-precision display, CC/CV switchable, <20 mV ultra-low power ripple, effectively protecting precision electronic equipment from voltage fluctuations
- HD interactive display: Equipped with a 2.8 -inch IPS color screen and supports 90 ° flip, which is convenient for multi -angle observation. The UI interface supports numerical display and curve display, and visually display the power status
- Diverse connections: The variable power supply integrates a variety of connection methods such as 4mm banana heads, U -shaped terminals and fine copper wires to meet the connection needs of different electronic equipment and power cords
8.3Good
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9
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.
8.2Good
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10
NICE-POWERNICE-POWER DC Power Supply Variable, 30V 30A 900W High Power Bench Power Supply with Encoder Knob, 4-Digit LED Display Lab Power Supply Adjustable Switching Regulated Power Supply Battery Charging
Main highlights- Stable Output, Auto Switch C.C/C.V Mode: This variable DC power supply is a low noise, low ripple adjustable high power continuous output power supply that can work at full load for long periods of time. Constant voltage and constant current modes can be switched automatically.
- Please note: Due to the design of the power supply, the front panel is only suitable for output currents up to 5A. To avoid damaging the power supply or load and output more accurately, connect the high current connector on the back of the unit for output currents above 5A. The back panel can reach the maximum current of the purchased specification: for example, if you purchase 30V 30A, the current can reach 30A by connecting the back panel high-current terminal.
- Multiple Protection, Intelligent Cooling Fan, Reliable and Safe: The DC power supply has built-in overvoltage protection, overcurrent protection, overheating protection and termination protection. When the operating temperature of the DC power supply exceeds 122°F/50°C, the fan will turn on intelligently to dissipate heat effectively and extend the life of the device. DC power supply has shock absorbing rubber feet at the bottom for safer and more stable use.
- Compact Design, Quality Check: The bench power supply measures only 38*24*13cm and weighs only 3kg, saving you more bench space and making it easy to carry around when you need it. Delivery includes: DC power supply *1; American standard power cord *1; English manual; low-power output cable *1; high-power output cable *1. We offer a 12-month repair policy. If you have any questions about our lab DC power supplies, please contact us and we will reply within 24 hours.
- CE & FCC Certification, Widely Used: 30v 30a Lab power supplies have passed CE & FCC Certification. This benchtop power supply is suitable for battery charging ( such as batteries with different voltages like 6V, 12V or 24V), labs, schools, electronics repair, electrolysis, electroplating, lamp testing, aging testing, DIY, research and teaching.
- 4-Digit LED Display, Power Display: 30v 30a DC Power Supply is a professional power conditioning unit with high resolution of 0.01V and 0.001A. The backlit 4-digit LED display of the bench power supply shows the voltage current and power values more accurately and is easy to see even in low light conditions.
- 2023 Upgrade High-precision Encoder Knob: Just "set" voltage and current instead of "adjust". The encoder switch replaces the potentiometer switch, the digits are switched by pressing the knob and each digit can be set in the range 0-9 by turning the knob. Makes work easier and more efficient!
8.0Good
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