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Rectangular metal power supply unit with built-in fan and ventilation grilles

Mean Well

Mean Well SPV-300-24 300W power supply

SKU CH-BRFG-4C9H0

Delivers 300 W at 24 V with active PFC above .95 and remote on-off control

  • TypeAT
  • Active PFC above .95 improves power factor
  • Built-in DC fan provides forced air cooling
  • Remote ON-OFF control enables external switching
  • Fan speed control adjusts cooling to load
  • Output programmable from 20 to 110 percent via external signal

Industrial AT power supply

The Mean Well SPV-300-24 is a 300W AT power supply built for industrial and embedded systems that require a fixed 24V output. It includes active power factor correction above 0.95 and a universal AC input range. Remote on-off control and fan-speed management are integrated for automated environments.

AT form factor and forced-air cooling

The unit follows the AT standard rather than the modern ATX specification, so it will not fit or connect to current consumer motherboards without an adapter. Cooling relies on a built-in DC fan that forces air through the chassis, meaning the enclosure must allow unobstructed airflow and cannot be sealed.

300W at 24V with programmable output

The supply delivers its full 300W at a nominal 24V and can be trimmed from 20 to 110 percent of rated voltage using an external 1 to 5.5VDC signal. Overload, over-voltage, over-temperature and short-circuit protections shut the unit down before damage occurs. It is not suited for builds that need multiple rails or higher total wattage.

Highlights

  • Active PFC above .95 improves power factor
  • Built-in DC fan provides forced air cooling
  • Remote ON-OFF control enables external switching
  • Fan speed control adjusts cooling to load
  • Output programmable from 20 to 110 percent via external signal

Specifications

TypeAT

Questions about this item

Should I choose the 24 V or a different output voltage for my build?

This unit delivers a fixed 24 V output that can be trimmed between 20 % and 110 % using a 1 to 5.5 VDC control signal, so select it when your system needs a 24 V rail with adjustable range.

What does the 300 W rating mean once the supply is installed?

It provides up to 300 W of continuous power with active PFC above 0.95, forced-air cooling and protections against short circuit, overload, over-voltage and over-temperature.

What interface standard does the remote on-off control use and what does it cap?

The remote on-off and voltage programming use a simple analogue 1 to 5.5 VDC signal; there is no digital bus or protocol specified, so control is limited to that voltage range.

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