The Best 30 Amp Constant Current Power Supply of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 30 Amp Constant Current Power Supply of 2022. Check our ranking below.
2,230 Reviews Scanned
Rank No. #1
ACEIRMC 20A 300W CC CV Step Down Module Adjustable DC 6-40V to 1.2-36V Voltage Regulator Buck Converter Constant Current Power Supply Module
- Aceirmc buck converter input voltage range is DC 6-40V, adjustable output voltage range is DC 1.2-36V, can be used to convert 24v to 12v 5v, adjustable output current range is 0-20A, max output power is 300W. The step down regulator can apply to constant output current.
- With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and current. The efficiency can be up to 95%,(measured at 20A, converting 24V to 12V).
- Short Circuit Protection: Self-recovery(cannot short circuit for long time). Plus, when input and output is common grounded, no-load CV output constant voltage,CC output constant current
- Adopting 75V / 80A large current dual MOS tube designed step-down board, Input and output use high frequency low resistance electrolytic capacitor, low ripple, and gives a stable output. Large current 30A connection screw terminals, more convenient to install
- Application: DIY stabilized voltage supply, LED car display, mobile power, industrial equipment appliances, LED driver, monitor, solar energy, fans, photovoltaic energy, motor, etc
Rank No. #2
1500W 30A DC-DC Boost Converter Step-up Power Supply Module Constant Voltage Constant Current Module Board Card in 10~60V Out 12~90V
- The power supply module uses double sendust magnets winded with 1.2mm copper wires
- 100V/210A low resistance MOS with big power and current input, suitable for big power LED, motors
- Support reverse input protection with MOS so there is no worry about wrong input wire and burn out power supply
- Low voltage protection will protect module and battery against damage from over-discharge when use a storage battery as input
- Thickened heatsink and intelligent temperature control cooling fan dissipate heat better
Rank No. #3
DC Power Supply Variable, 30V 10A Bench Power Supply with 4-Digits LED Display, 5V/3.6A USB Quick-Charge, Adjustable Switching Power Supply with Encoder Adjustment Knob, Output Enable/Disable Button
- 【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.
- 【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 power supply.
- 【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.
- 【Precise 4-digit LED Display】The variable power supply with a high-definition 4-digit display, which can display three values of voltage, current and power at the same time. The data is accurate to 0.01V and 0.001A. The bright white digital display helps you to operate as usual in the dark, and you can adjust the brightness of the screen as needed.
- 【Compact and Lightweight】The measures of the variable dc power supply is only 7.51*3.56*5.81inch 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. NANKADF dc power supply is the best choice for beginners or professional electricians.
SaleRank No. #4
Kungber DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with High Precision 4-Digits LED Display, 5V/2A USB Interface, Coarse and Fine Adjustments (Black)
- High Precision 4-Digits LED Display: Kungber 30V 10A lab DC benchtop power supply is a professional laboratory power supply regulation device that has a high resolution of 0.01V and 0.01A. You can easily tune it within 0-30V and 0-10A. The backlit 4-digit LED display provides a more accurate readout for the voltage and current value, visible easily even in the low-light conditions.
- Constant Voltage (C.V.) & Current (C.C.) Mode Automatic Conversion: Easy to dial in the desired voltage and current with the coarse and fine adjustment knob. The constant voltage/current mode can automatically switch with load changes. The conversion of constant voltage and constant current is indicated by the LED display on the front panel.
- Compact and Various Application: This DC power supply is less than 3 lb and measures only 9.5 x 3.4 x 6.1 inches, applies for laboratory, school, repair, electrolyzation, electroplate, brush plating, lamp test, aging testing, battery charge, home DIY and other requirements. 5V/2A USB port could charge your cellphone and provide power for the device which you want to repair, no worry about running out of power.
- Reliable and Safety: many safety measures are adopt in Kungber lab DC power supply - Grounding wire, Leakage protection,Thermal protection, Voltage overload protection, Power overload protection and Short-circuit protection. Kungber power supply use premium electronic components, provide reliable working status and prolong the life of product effectively. When the working temperature is more than 122℉/50℃,the intelligent thermal protection will active the cooling fan to lower the temperature
- What You Get - 1 x Kungber SPS3010 Variable DC Power Supply, 1 set of Output Power Cords , 1x Input Power Cord, 1 x User Manual, and Technical Support from Kungber.
SaleRank No. #5
DC Power Supply Variable Eventek 30V 10A Adjustable Switching DC Regulated Bench Power Supply with 4-Digits LED Display, USB Interface, Alligator Cord/Test Lines
- Adjustable DC Power Supply:✅0-30 volts and 0-10 ampere output; Decimal point automatic carry & LED 4 digits display of voltage function displays. Display accuracy: 0.01V and 0.001A. Clearer visible readout for the voltage and current value, extremely durable, and easily visible even in low-light usage.
- Constant Voltage and Current:✅Automatic conversion between C.C and C.V modes, which can stably output voltage or current; The independent adjustment knobs allow for a bit by bit adjustment of voltage and current data. The conversion between constant voltage and constant current is indicated by the LED display on the front panel.
- Compact & 5V/2A USB Interface:✅This power supply features the latest flame-retardant material housing for lightweight and high performance while maximizing impact resistance for safety. 5V / 2A USB port provides power to charge your phone or the device you want to repair without worrying about running out of power.
- Multiple Protection Functions:✅Intelligent temperature adjustment function with an integrated thermal sensor can effectively reduce the temperature during operation, effectively reduce noise. The power supply is durable and compact. Multiple Protections include boundary current protection, thermal protection, voltage overload protection, short circuit protection, Overpower.
- Switching Power Supply Design:✅Eventek bench power supply are FCC certified, adopts switching power supply design, higher conversion efficiency than linear power supplies and and smaller and lighter, the weight is only 20%-30% of the linear power supply. We provide 24 months after-sales service and warranty. If you have any questions about our products, please feel free to contact us.
Rank No. #6
Tekpower TP3030E DC Adjustable Switching Power Supply 30V 30A, Digital Display with Back Light
- Output Voltage: 0- 30V DC with low ripple
- Current Output:0-30A DC with low ripple
- Front AUX output 5A max
- Fuse Protection, Air fan for cooling
- 1 Year USA warranty
Rank No. #7
Siglent Technologies SPD3303X-E Triple Output Power Supply
- 3 Independent Controlled And Isolated Outputs
- 32V/3. 2A X 2, 2. 5V/3. 3V/5V/3. 2A X 1, Total Power: 220W
- Output Modes: Independent, Series, Parallel
- Timing Output Function.Trending Graphs
Rank No. #8
DROK 48V Power Supply, AC 110V/220V to DC 0-48V 10A 480W Buck Converter, Adjustable Variable LED Adapter Regulated 5V 12V 24V 30V 36V 48V Volt Voltage Transformer 10A Amp Charger for Lab CCTV
- 【Volt Adjustment】 Input Voltage can be 110V or 220V. Wide adjustable output Voltage range: DC 0-48V. This supply is suitable for 5V 9V 12V 24V 30V 36V 48V devices. The voltage precision is 0.1V. Note——The maximum current is 10A. But the actual current is depended on the load. No matter how many voltage is adjusted, the current is 10A and can not be regulated. It can be used to device of 2A 3A 5A 10A. Make sure to use the devices which is below 10A.
- 【Hareware】 This Buck Converter is equipped with LED screen, heat sink and cooling fan. The LED screen can clearly display the output voltage. Heat sink and cooling fan can control the temperature in a safe range. During the running power is high, the cooling fan will automatically activate with little noise.
- 【Easy Operation】 This supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient. The potentiometer is inset into the supply. Only to rotate the potentiometer can adjust output parameter.
- 【Protection】 Over Load Protection, Over Voltage Protection, Short Circuit Protection, which can protect your device from damage. Note: the default input voltage is 220V, before using, please switching the input voltage to 110V/220V according to your city voltage.
- 【Wide Application】 This power supply has variable application. It can be used as a 5V 12V 24V 30V 36V 48V power supply for RV, Car, Labtop, Computer, Lab, CCTV, etc. All of our item has 1 year long time warranty guarantee.
SaleRank No. #9
DROK 24V Power Supply, AC 110V/220V to DC 0-24V 20A 480W Buck Converter, Variable Adjustable Adapter Regulated 5V 12V 24V Volt Switching Voltage LED Transformer 20A Amp Charger for Computer Lab
- 【Volt Adjustment】 Input Voltage can be 110V or 220V. Wide adjustable output Voltage range: DC 0-24V. This supply is suitable for 5V 9V 12V 24V devices. The voltage precision is 0.1V. Note——The maximum current is 20A. But the actual current is depended on the load. No matter how many voltage is adjusted, the current is 20A and can not be regulated. It can be used to device of 2A 3A 5A 10A 12A 15A 20A. Make sure to use the devices which is below 20A.
- 【Hareware】 This Buck Converter is equipped with LED screen, heat sink and cooling fan. The LED screen can clearly display the output voltage. Heat sink and cooling fan can control the temperature in a safe range. During the running power is high, the cooling fan will automatically activate with little noise.
- 【Easy Operation】 This supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient. The potentiometer is inset into the supply. Only to rotate the potentiometer can adjust output parameter.
- 【Protection】 Over Load Protection, Over Voltage Protection, Short Circuit Protection, which can protect your device from damage. Note: the default input voltage is 220V, before using, please switching the input voltage to 110V/220V according to your city voltage.
- 【Wide Application】 This power supply has variable application. It can be used as a 5V 12V 24V power supply for RV, Car, Labtop, Computer, Lab, CCTV, etc. All of our item has 1 year long time warranty guarantee.
Rank No. #10
Powerwerx SPS-30DM Variable 30 Amp Desktop DC Power Supply With Digital Meters
- Dual metered digital Amps/Volts power supply
- Features user adjustable 5~16 VDC variable output or fixed 14.1 VDC output
- Rear power output via 1/4" binding posts
- Supplies up to 25 amps continuous, 28 amps surge
Last update on 2022-11-08 / Affiliate links / Images from Amazon Product Advertising API
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