The 12.5kW power shelf is a 6-slot chassis that receives dual-input, 3-phase power and provides stable DC output
power (1000A at 12.5VDC).
This 19-inch power shelf supports up to 6 high-power, hot-swappable Power Supply
Units for 5+1 redundant operation.

"Receives dual-input, 3-phase power and provides stable DC output power (1000A at 12.5VDC)."
Key Features
PF-2123-1LDx |
---|
Dual input connection with AC or DC (190–300VDC) for each input source |
Supplies power up to 12.5kW, 5+1 redundant operation |
2.5 OU (Open U) shelf accepts up to 6 hot-swappable 2.5kW Power Supply Units (PSUs) for 5+1 redundant operation |
19-inch shelf with a height of 2.5 OU, 4.77″ inches (117 mm) |
Supports 4x C13 outlets for external AC load |
Supports 1 set of bus bars to deliver DC power to load |
Optional Shelf Controller provides remote on/off capability of PSUs along with real-time monitoring and control |
Communication with Li-ion Battery Backup System (BBS) |
Specifications
Model Number | PF-2123-1LDM | PF-2123-1LDN |
---|---|---|
Maximum Output Power | 12.5kW | 12.5kW |
Input | 3-phase, 5 wire 346 / 360 / 380 / 400 / 415VAC | 3-phase, 4 wire 200 / 208 / 220 / 230 / 240VAC |
Output | 12.5kW (12.5VDC / 1000A) | 12.5kW (12.5VDC / 1000A) |
Communications | CAN, PMBUS1.2 | CAN, PMBUS1.2 |
Operating Temperature | 0°C to 50°C | 0°C to 50°C |
Approvals | UL60950-1, IEC60950-1 International, GB4943, RoHS | |
Dimensions (H x W x D) | 4.77’’ x 19’’ x 27’’ (117 mm x 448 mm x 650 mm) | |
Warranty | 3 Years | 3 Years |
Where to Buy

A fully loaded 6 slot Power Shelf
Component | Model Number | Description |
---|---|---|
Power Shelf | PF-2123-1LDM | 12.5KW (5+1), 3 Phase, 5-wire connection, 2.5U Power Shelf with 6 pcs power module slots and one Shelf Controller slot |
Power Shelf | PF-2123-1LDN | 12.5KW (5+1), 3 Phase, 4-wire connection, 2.5U Power Shelf with 6 pcs power module slots and one Shelf Controller slot |
Power Supply Unit | PS-2252-1QDU | 2.5kW Hot-Swappable Power Supply Unit |
Battery Backup System | BP-1702-01X | 7KW 1U Battery Backup Shelf with 4 slots |
Battery Backup Unit | BM-1172-01X | 1.75kW Battery Backup Unit |
Shelf Controller | CM-12CP-010U | Manages the Power Shelf and Li-ion Battery Backup System (BBS) |
Site Management Controller | CP-13EC-010U | Rack management and control |
21-inch OCP Rack | KT-2141-121 | 21-inch Open Frame Rack |