KUAIQU Programmable Bench DC Power Supply 30V/60V/120V, RS232 Interface, Color LCD Display
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
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KUAIQU Programmable Bench DC Power Supply 30V/60V/120V, RS232 Interface, Color LCD Display
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD

KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD

$119.99
$239.99
$119.99
Please hurry! Only 20 left in stock
InputVoltage: AC220V(±10%)
Model: SPPS-D305(30V 5A 150W)
Subtotal: $119.99
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We offer a 30-day price guarantee: if the price of your purchased item drops within 30 days, we will refund the price difference.

Free Returns

30-Day return and refund guarantee refer to our refund policy.
KUAIQU Programmable Bench DC Power Supply 30V/60V/120V, RS232 Interface, Color LCD Display

KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD

$239.99 $119.99
KUAIQU Programmable Bench DC Power Supply 30V/60V/120V, RS232 Interface, Color LCD Display
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD
KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD

KUAIQU Programmable DC Power Supply 30V/60V/120V 3A/5A/10A with RS232 Interface & Color LCD

$239.99 $119.99
InputVoltage: AC220V(±10%)
Model: SPPS-D305(30V 5A 150W)
Product Details

Download English Manual (PDF)

Click the link above to get the full user guide for this product.

KUAIQU Programmable DC Power Supply  with  Color LCD

Key Features:

Precise control

  • Delivers a wide, continuously adjustable output range of 0-120V voltage and 0-10A current, meeting the demands of precise control testing and precision applications.
  • Equipped with a full-color LCD display that provides clear, intuitive visualization of key parameters (voltage, current, power), ensuring easy monitoring and operation.
  • 4 groups memory storage function to save and quickly recall preset voltage/current settings, eliminating repetitive adjustments for recurring tasks.
  • Output switch button: Allows one-touch control of power output on/off. This design prevents accidental output activation during parameter setup and enables safe disconnection without shutting down the entire device—critical for protecting sensitive components during testing.

Professional Protection & Stability

  • Built-in external circuit protection mechanisms to safeguard both the power supply and connected devices during operation, preventing damage from abnormal conditions.
  • Features a dedicated USB 5V 2A auxiliary power output, offering convenient power for small peripherals or auxiliary devices during testing.
  • Ensures high stability with minimal output ripple, critical for precise applications where voltage/current fluctuations could affect results.
  • Integrates comprehensive protection circuits (including over-voltage, over-current, and short-circuit protection) to guarantee reliable performance in demanding environments.
  • Panel lock button: With one press, it locks all parameter adjustment knobs/buttons to prevent accidental touches from altering preset settings. This is especially useful in multi-person workspaces or long-duration tests, ensuring consistent test conditions.

Advanced Connectivity (Optional)

  • Equipped with a standard RS-232 communication interface for seamless integration with automated systems, testing equipment, and control platforms. Supports remote control and data transmission to improve workflow efficiency. Optional USB or RS485 communication interfaces are available upon request. If you require a USB or RS485 version, please contact our customer service team via email before placing your order.

Versatile Applications

  • Laboratory & Education: Reliable power source for research, experiments in laboratories and schools.
  • Electronics Field: Maintenance of mobile phones, computers, and electrical appliances; suitable for Arduino projects, electronic maintenance.
  • Battery & Component Testing: Safe and controlled charging for LiFePO4 batteries; power supply for electronic component aging tests.
  • Specialized Processes: Stable DC power for electrolysis, electroplating, and lamp tests.
  • DIY & Others: Ideal for DIY projects and any equipment requiring regulated DC power.

Quality Check and Terms of Service:

  • Package includes: DC Power Supply *1, Output Power Cord *1, Input Power Cord *1, User Manual *1, Warranty Card *1.
  • Has passed CE & FCC Certification.
  • All DC power supplies and accessories are inspected before shipment to ensure good quality.
  • Customer support: Contact us with any questions, and we'll respond within 24 hours.
Parameter Sub-parameter SPPS-D305 SPPS-D3010 SPPS-D605 SPPS-D1203
Rated Value (0℃~40℃) Voltage 0-30V 0-30V 0-60V 0-120V
Current 0-5A 0-10A 0-5A 0-3A
Power 150W 300W 300W 360W
USB Output - 5V 2A 5V 2A 5V 2A 5V 2A
Load Regulation Voltage ≤0.3%+10 mV ≤0.3%+10 mV ≤0.3%+10 mV ≤0.3%+10 mV
Current ≤0.1%+2.5 mA ≤0.1%+2.5 mA ≤0.1%+2.5 mA ≤0.1%+2.5 mA
Line Regulation Voltage ≤0.01%+2.5 mV ≤0.01%+2.5 mV ≤0.01%+2.5 mV ≤0.01%+2.5 mV
Current ≤0.1%+2.5 mA ≤0.1%+2.5 mA ≤0.1%+2.5 mA ≤0.1%+2.5 mA
Setting Resolution Voltage 10mV 10mV <100V:10mV <100V:10mV
Current 1mA 1mA 1mA 1mA
Readback Resolution Voltage 10mV 10mV <100V:10mV <100V:10mV
Current 1mA 1mA 1mA 1mA
Setting Accuracy Voltage ≤0.05%+10mV ≤0.05%+10mV ≤0.01%+15mV ≤0.01%+15mV
Current ≤0.01%+10mA ≤0.01%+10mA ≤0.01%+10mA ≤0.01%+10mA
Readback Accuracy Voltage ≤0.05%+10mV ≤0.05%+10mV ≤0.01%+15mV ≤0.01%+15mV
Current ≤0.01%+10mA ≤0.01%+10mA ≤0.01%+10mA ≤0.01%+10mA
Ripple (20Hz~20MHz) Voltage ≤60 mVp-p / ≤10 mVrms ≤100 mVp-p / ≤15 mVrms ≤200 mVp-p / ≤20 mVrms ≤300 mVp-p / ≤30 mVrms
Current ≤10 mArms ≤15 mArms ≤20 mArms ≤30 mArms
Rise Time (No Load) Time ≤200mS ≤200mS ≤200mS ≤200mS
Rise Time (Full Load) Time ≤300mS ≤300mS ≤300mS ≤300mS
Fall Time (No Load) Time ≤15S ≤20S ≤20S ≤30S
Fall Time (Full Load) Time ≤300mS ≤300mS ≤300mS ≤300mS
Dynamic Response Time ≤200mS ≤200mS ≤200mS ≤200mS
Efficiency - ≥85% ≥85% ≥85% ≥85%
Input Voltage/Current - AC 220V (AC110V optional) AC 220V (AC110V optional) AC 220V (AC110V optional) AC 220V (AC110V optional)
Size/Net Weight - Size: about 2412.513cm, weight:1.4KG Same as left Same as left Same as left
Package Size/Weight - Single unit: 311720cm, weight:1.9KG (6pcs/Carton) Same as left Same as left Same as left
Warranty

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.

Please feel free to reach us with any concerns:

Email: kuaiquinstrument@163.com

We strive to reply to you within 24 hours.

Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.

We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

Price Guarantee

At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on kuaiquinstrument.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at kuaiquinstrument@163.com. Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.

Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.

FAQs

Still confused about our DC regulated power supplies after checking the FAQs? Please contact our customer service, we are ready to solve all your problems.

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Our customer service can walk you through all settings. You can also watch full operation tutorials on our YouTube channel, including OVP, OCP, memory storage function and other operation guides. Our official blog also has lots of technical articles for reference.

Partial KUAIQU power supplies support program control with USB, RS232, RS485 interfaces, based on Modbus protocol. Remote control can be realized via our self-developed PC software. If you need this function and confirm interface configuration of a model, email us: kuaiquinstrument@163.com..

The banana plug adopts cross-slot design. Pry the metal slot slightly open with a screwdriver to make the plug clamp terminals tighter and safer..

All KUAIQU DC power supplies support basic battery charging. For dedicated long-term charging, our patented battery-charging model with independent BATTERY key and full charging protection is highly recommended.

A certain amount of ripple is normal for all switching DC power supplies. Ripple is a small residual AC component superimposed on the DC output and is an inherent characteristic of switching power supply technology. The typical ripple voltage of our power supplies ranges from approximately 100 mV to 300 mV, which is suitable for most general-purpose testing, maintenance, and electronic applications.

A: Minor fluctuations in the last displayed digit are normal and are typically caused by temperature drift within the electronic components. As ambient and internal temperatures change, small variations in the readings may occur. This falls within normal industry tolerances and does not affect the power supply's suitability for everyday electronics work, home repairs, DIY projects, or general testing. For applications requiring extremely high precision and ultra-stable output, a linear DC regulated power supply may be more appropriate.

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage. Q: Why does t

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FAQs

If you have any other questions or technical doubts about our DC power supplies, please feel free to contact us anytime. Our professional support team will reply to you as soon as possible.

Output ripple refers to small residual AC fluctuations present in the DC output. Lower ripple levels provide cleaner power, which is important when testing sensitive electronics, RF circuits, audio equipment, and precision instruments..

Yes, all DC regulated power supplies manufactured by KUAIQU support battery charging. However, if you mainly intend to charge batteries, I would highly recommend our patented DC power supply specially designed for battery charging. It comes with an exclusive dedicated BATTERY function key, and built-in specialized charging protection functions to safeguard your batteries during the whole charging process..

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage..

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds..

This is a common operation issue for adjustable DC power supplies. Please follow the steps below to solve the voltage adjustment failure: Turn the current adjustment knob clockwise moderately to set the unit to constant voltage (C.V) mode; After confirming the power supply enters CV mode, turn the voltage adjustment knob clockwise, then you can freely adjust the output voltage value..

It is recommended to pre-adjust the voltage to around 5V before operation. This step prevents spark generation when connecting short-circuited loads, which effectively avoids safety accidents and other hidden electrical hazards..

A: Our banana plug adopts cross-slot design. If the plug becomes loose, use a screwdriver to slightly pry open the metal slot, which can make the plug clamp tighter and connect more safely..

Some models of our KUAIQU DC regulated power supplies support programmable control. They are equipped with USB, RS232 or RS485 communication interfaces and adopt the Modbus protocol. You can realize remote control easily by using our self-developed PC software. If you need programmable control but are unsure whether a specific model comes with your required communication interface, please feel free to contact us via email: kuaiquinstrument@163.com.

If you have any confusion about using OVP, OCP and other built-in functions, our professional customer support staff will provide targeted guidance for you. We also upload complete step-by-step tutorial videos on our official YouTube channel. Apart from OVP and OCP over-protection setup, the videos demonstrate memory storage function and all common operation skills. You can visit our channel via https://www.youtube.com/ In addition, our official blog contains a large number of popular science and technical articles about DC power supplies, you can search and browse related content to solve your problems.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

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