Power Supplies & Devices Newsletter Signup
Get the Engineering360
Stay up to date on:
Reports on advances in power supplies as well as the components and devices used in power conversion, management, and distribution.

PU400 Series Power Supply

Product Announcement from Protek Power

PU400 Series Power Supply-Image

The PU400 series of AC-DC switching power supplies in a
package of 4 x 7 x 1.58 inches are capable of delivering 400
watts of continuous power at 7 CFM forced air cooling or 300
watts at convection cooling. The units are constructed on a
printed circuit board with a U-bracket for mechanical support
and heat sinking. A cover-and-fan assembly can be added
during manufacturing for 400 watt output without the change
of any dimension. The units are certified to IEC/EN/UL
60950-1 and suitable for data networking, computer and
telecommunication applications.


  • 4 x 7 inch footprint with 1.58 inch low profile
  • 100-240 VAC input with active PFC
  • 300 watt convection rating up to + 50℃
  • 400 watt output with 7 CFM forced air
  • Standby output 5VDC at 100mA
  • EN55022 Class B conducted emissions
  • Inhibit - TTL low to disable output
  • Standard PS Off and DC OK signals
  • Efficiency greater than 88%
  • Compliant with RoHS requirements