Specifications
Type
AC-DC server power shelf
Output
800 Vdc
Input
400-480 Vac (3-phase)
Power Capacity
72 kW
Efficiency
Up to 98%
Architecture
800 VDC HVDC for AI racks
Alignment
Developed with NVIDIA for AI data center power
Rack Role
Converts facility AC to the 800 Vdc rack bus
Downstream
Feeds 800 Vdc to 50 Vdc DC-DC shelves and 800 Vdc to 12 V parallel modules
Cooling
Rack-level air/liquid compatible shelf
Monitoring
PMC with PoE and relay modules
Companion
Delta 90 kW DC-DC server power shelf (800 Vdc to 50 Vdc)
MPN
72 kW AC-DC Server Power Shelf
Overview
The Delta 72 kW AC-DC server power shelf is the front end of an 800 VDC AI rack: it takes 400-480 Vac from the facility transformer and produces an 800 Vdc bus at up to 98% conversion efficiency.
It is part of Delta's HVDC server power solution developed with NVIDIA, which moves AI racks from 48 Vdc distribution to an 800 Vdc architecture. At multi-hundred-kilowatt rack power, 800 Vdc cuts the copper busbar mass and resistive losses that make 48 Vdc impractical.
The shelf pairs with Delta's 90 kW DC-DC server power shelf (800 Vdc to 50 Vdc, up to 98.5% efficient) and with parallel HVDC 800 Vdc to 50/12 Vdc modules.
Key Benefits
72 kW per shelf; up to 98% AC-to-800 Vdc efficiency; 800 VDC architecture reduces busbar mass and I²R losses versus 48 V; NVIDIA-aligned ecosystem for AI factory deployments.
Applications
Megawatt-class AI training and inference halls, HVDC retrofit of existing data centers, NVIDIA GB200/GB300-class rack power, and modular AI factory builds.
Request a Quote — DELTA 72 KW AC-DC SERVER POWER SHELF — 400-480 VAC TO 800 VDC
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