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Rectangular power adapter with LED display, heat sink, cooling fan and inset potentiometer

KEHIPI

KEHIPI 20050 0-12V 40A 480W Buck Converter Power Adapter

SKU CH-W8D0-8C56E

Adjustable buck converter steps 110V or 220V AC down to 0–12V DC at up to 40A and 480W with LED readout, fan cooling and overload protection

  • ColorSingle Display Fix Current
  • Dimensions50.0 in x 115.0 in x 50.0 in
  • Adjustable 0–12 V output suits 3–12 V devices
  • 480 W capacity delivers up to 40 A for demanding loads
  • Built-in LED display shows voltage to 0.1 V precision
  • Fan and heatsink keep temperatures safe under heavy use
  • Over-load, over-voltage and short-circuit protection guards connected gear

Adjustable 0-12V 480W Buck Converter

This KEHIPI buck converter steps down AC 110V or 220V input to a DC output adjustable from 0 to 12V with a maximum current of 40A and 480W capacity. The unit suits bench testing, CCTV installations, automotive accessories and other low-voltage equipment requiring variable voltage. An integrated LED display shows the set output voltage to 0.1V precision.

Input Voltage Selection and Load Compatibility

Verify that the input-voltage selector on the unit matches your local mains supply of either 110V or 220V before connecting power. Ensure the connected load does not exceed 40A at the chosen voltage; the converter cannot regulate current and will deliver whatever the load draws up to that limit. Wiring must be rated for the expected current and secured to the output terminals.

Active Cooling with Thermal Protection

A built-in heatsink and temperature-controlled fan keep internal temperatures in a safe range during high-power operation. The fan activates automatically when the unit runs at higher loads and operates with low audible noise. Overload, over-voltage and short-circuit protections shut the output down to prevent damage to the converter and attached devices.

Highlights

  • Adjustable 0–12 V output suits 3–12 V devices
  • 480 W capacity delivers up to 40 A for demanding loads
  • Built-in LED display shows voltage to 0.1 V precision
  • Fan and heatsink keep temperatures safe under heavy use
  • Over-load, over-voltage and short-circuit protection guards connected gear

Specifications

BrandDROK
Model20050
ColorSingle Display Fix Current
Dimensions50.0 in x 115.0 in x 50.0 in

Questions about this item

Does the KEHIPI 20050 supply arrive with a mains lead and output cables, or must I source them separately?

The unit is supplied as the converter only; a suitable AC cord for 110 V or 220 V input and DC output wiring for your load must be provided by the installer.

The listing shows several current ratings such as 10 A, 20 A, 30 A and 40 A — which one should I select for my project?

All ratings refer to the same 40 A maximum hardware; choose a load that draws 40 A or less and the converter will deliver the current the device requires.

In practice, what does the 480 W figure mean for a 12 V CCTV installation?

At 12 V the 480 W rating equals the full 40 A capability, so a CCTV system drawing up to 40 A at 12 V can be powered continuously.

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