12.5 kW 5+5 Power Shelf

The Lite-On 12.5kW 5+5 Power Shelf, designed for a 21" rack, accepts 3-phase input power and provides stable DC output power (1000A at 12.5VDC).

The OCP 21-inch power shelf includes a total of 5+5 high-power, hot-swappable Power Supply Units (PSUs) in redundant operation.

The 3-phase, 5-wire model name is PF-2123-2LNM. The 3-phase, 4-wire model name is PF-2123-2LNN.
"5+5 high-power, hot-swappable 2.5kW Power Supply Units in redundant operation."

Key Features

3-phase, 5-wire 380VAC / 400VAC, or 3-phase, 4-wire 208Vac, 12.5kW power output (2.5kW x 5; 12.5VDC/1000A)
Up to 5+5 redundant operation
Hot-swappable 2.5kW Power Supply Unit
Communication with Li-ion Battery Backup Shelf (BBS)
21-inch, 12.5kW Power Shelf with a height of 3 OU (OpenU), 5.17 inches (131 mm)
Supports 6x C13 outlets for external AC load
Supports up to 3 sets of bus bars to deliver DC output loading
Real-time PSU and BBS monitoring and control


Model NumberPF-2123-2LNX | 3 Phase 12.5kW Power Shelf
Maximum Output Power12.5kW
Input3-phase, 5 wire 346 / 360 / 380 / 400 / 415VAC or
3-phase, 4 wire 200 / 208 / 220 / 230 / 240VAC
Output12.5kW (12.5VDC / 1000A)
CommunicationsCAN, PMBUS1.2
Operating Temperature0°C to 50°C
ApprovalsUL60950-1, IEC60950-1 International, GB4943, RoHS
Dimensions (H x W x D)5.17’’ x 21.02’’ x 25.55’’ (131 mm x 534 mm x 649 mm)
Warranty3 Years

Three-Phase Power Shelf System Components

ComponentModel NumberDescription
Power ShelfPF-2123-2LNM
(3-phase, 5-wire)
(3-phase, 4-wire)
Three-Phase 12.5 kW Power Shelf chassis includes one Shelf Controller slot and ten PSU Module slots
  • Power Module slots (10)
  • Shelf Controller slot (1)
Power Supply UnitPS-2252-6L1U2.5kW Hot-Swappable Power Supply Unit
Battery Backup SystemBP-1772-01X7KW 1U Battery Backup Shelf with 4 slots
Battery Backup UnitBM-1172-01X1.75kW Battery Backup Unit
Shelf ControllerCM-12CP-010UManages the Power Shelf and Li-ion Battery Backup System (BBS)
Site Management ControllerCP-13EC-010URack management and control
21-inch OCP RackKT-2141-12121-inch Open Frame Rack