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Black aluminium box with dual fans and terminal connections

BUCIER

BUCIER 24V to 12V Step-Down Converter 100A 1200W power adapter

SKU CH-13JX-F4C9P

Converts 20-30V DC to stable 12V at up to 100A and 1200W with dual-fan cooling and six protection features

  • Product colorBlack
  • Product weight0.63 kg
  • Converts 20-30V input to stable 12V output
  • Delivers up to 100A continuous current for demanding loads
  • Iron shell with dual fans prevents overheating under load
  • Six protection circuits guard against faults and reverse polarity
  • Compact 0.63kg design fits tight vehicle installations

24V-to-12V step-down converter for high-current

This BUCIER buck module accepts a DC input between 20 and 30 volts and delivers a regulated 12-volt output at up to 100 amps. It is built for vehicle and industrial equipment that must run from a 24-volt electrical system. The aluminium-alloy housing weighs .63 kilograms and integrates dual fans for active cooling.

Verify your source voltage and load before ordering

Confirm that the supply feeding the converter stays within the 20-to-30-volt range and that the connected devices do not draw more than 100 amps combined. The unit draws .10 amps with no load and activates over-temperature protection between 55 and 70 degrees Celsius. Ensure the operating environment remains between 0 and 40 degrees Celsius.

Fits in tight vehicle bays and frees up 12-volt gear

The compact iron shell mounts easily in automotive, marine or industrial cabinets without consuming excess space. Six protection circuits — overload, over-temperature, high-voltage, low-voltage, reverse-polarity and short-circuit — safeguard both the converter and downstream equipment. Efficiency exceeds 90 percent, reducing heat and preserving battery capacity for refrigerators, audio, monitoring or medical devices.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $55.99
Pricier than about 82% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Brand nameXMSJSIY
Model nameXMSJSIY-24 V-12 V-100A-1200 W
Part numberXMSJSIY-24 V-12 V-100A-1200 W
Product colorBlack
Size & build
Product weight0.63 kg

Questions about this item

Does the BUCIER 24V to 12V converter ship with any cables or mounting hardware, or do I need to buy them separately?

The packing list shows only the converter itself; no cables or brackets are included.

Should I pick a lower-amperage version of this step-down module, or is the 100A model the right choice for a 1200W load?

The 100A rating matches the 1200W maximum output, so this version covers the full power range without needing a higher-capacity alternative.

What does the 1200W rating actually deliver when the converter is installed in a vehicle running a 24V system?

With a 20–30V input it provides a stable 12V (±0.5V) output at up to 100A, and the dual fans keep temperatures in check up to 40°C ambient.

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