Specifications
Category
ORV3 power shelf (Open Rack version 3)
Rack Form Factor
1OU, 21-inch open rack
PSU Slots
6
PSU Rating
3 kW each (ORV3 48 V)
Max Output Power
18 kW
Redundant Output
15 kW with 5+1
Output Voltage
48 / 50 Vdc
Efficiency
Up to 97.5%
Input
3-phase AC (Delta and Star configurations)
Shelf Controller
Removable, PMM compatible
Compliance
OCP Open Rack Standard v3.0
Busbar Interface
Blind-mate, touch-proof ORV3 busbar
Redundancy Modes
5+1, N+N (shelf dependent)
Battery Options
Pairs with ORV3 battery shelf for regulated discharge
Roadmap (Delta)
HPR 5.5 kW PSU and 33 kW shelf
Typical Use
AI/ML and HPC racks to ~18 kW IT load
ORV3 power shelf classes
| Power class | PSU | Redundancy | Output |
|---|---|---|---|
| Delta ORV3 18kW shelf | 6x 3 kW | 5+1 = 15 kW | 48/50 Vdc |
| Delta ORV3 18kW shelf | 6x 3 kW | N+N = 9 kW | 48/50 Vdc |
| Advanced Energy ORv3 33kW HPR | 6x 5.5 kW | 11+1 | 48 Vdc |
| Legacy ORv2 shelf | N/A | 2+1 | 12.6 Vdc, 6.6 kW |
| ORV3 battery shelf | N/A | N/A | Regulated discharge |
Use Case
An 18kW shelf is sized to feed a single GPU node or a pair of high-density CPU nodes at 48V over the rack busbar. The 97.5% peak efficiency is the whole point of moving to ORV3: it removes most of the AC-DC loss that 12V shelves incurred, which is what makes the 130kW+ per-rack densities of current AI systems practical.
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