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Rectangular metal module with IEC309 connectors, matte finish

HP

HP AF478A UPS management module Three Phase DirectFlow 30A 400V-415V

SKU CH-JFJR-HFKSZ MPN AF478A

A UPS management module that provides three-phase DirectFlow power distribution at 30A and 400V-415V with IEC309 input and output connections

  • TypeUPS management module
  • FeaturesThree Phase,DirectFlow
  • Three-phase DirectFlow architecture reduces UPS footprint and cost
  • Over 99% efficiency cuts power consumption and operating expense
  • Active Current Correction keeps power factor near unity at low loads
  • IEC309 input/output supports 30 A at 400 V-415 V
  • Scalable modular design backs HP servers and storage up to 12000 VA

Three-phase UPS management module

The HP AF478A is a DirectFlow UPS management module rated for 30 A at 400 V to 415 V three-phase input. It integrates charger, inverter and active filter functions into a single compact unit for HP servers and storage. The module uses IEC 309 connectors for both input and output. It is designed to work with part numbers AF478A and G9Y75A.

Efficiency and power quality

DirectFlow technology removes the active front-end AC/DC conversion steps, delivering efficiency exceeding 99 %. Integrated active current correction keeps the power factor close to unity even at low loads. The design reduces both physical size and cost compared with traditional UPS architectures. Clean power output helps lower overall energy costs.

Scalable backup upgrade

This module replaces a conventional UPS power management unit in an existing DirectFlow rack system. It is suited for installations that need a high-density 12 kW backup solution without the footprint of legacy equipment. Buyers who require a different current rating or single-phase operation should look elsewhere. The jump is worthwhile when expanding capacity within the same DirectFlow chassis.

Highlights

  • Three-phase DirectFlow architecture reduces UPS footprint and cost
  • Over 99% efficiency cuts power consumption and operating expense
  • Active Current Correction keeps power factor near unity at low loads
  • IEC309 input/output supports 30 A at 400 V-415 V
  • Scalable modular design backs HP servers and storage up to 12000 VA

Specifications

BrandHP
ModelAF478A
TypeUPS management module
FeaturesThree Phase,DirectFlow

Questions about this item

How is the HP AF478A DirectFlow UPS module installed and what step is commonly missed?

Mount the module in the DirectFlow UPS frame, connect the IEC 309 three-phase input and output cables at 400 V to 415 V, then secure the 30 A circuit-breaker linkage; the step often missed is torquing the IEC 309 terminals to the specified value before energising.

What maintenance or replacement will the HP AF478A DirectFlow UPS module need later?

Plan to replace the internal battery packs that supply the DirectFlow UPS when runtime drops below requirements; the management module itself has no user-serviceable parts, so only the battery trays need periodic swap-out.

What limit appears first on the HP AF478A DirectFlow UPS module under sustained load?

The 30 A three-phase input rating at 400 V to 415 V is the first hard limit; exceeding it trips the IEC 309 breaker, so sustained draw must stay within the 30 A per phase envelope.

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