450-AJRR: Dell 1400W Platinum Hot-Plug Redundant Power Supply (Common Slot)
Also listed as: 03W3PC, 3W3PC, DPS-1400CB, D1400E-S0 · made by Delta Electronics
The Dell 450-AJRR is a Dell 1400W Platinum Hot-Plug Redundant Power Supply (Common Slot) delivering high-efficiency hot-plug electrical power to Dell PowerEdge R740, R740XD, R640, R750 servers.
Specifications
| Part number | 450-AJRR |
|---|---|
| Brand | Dell |
| Made by | Delta Electronics |
| Type | Power supplies |
| Other numbers | 03W3PC, 3W3PC, DPS-1400CB, D1400E-S0 |
| Status | current |
| Interface | Dell Common Slot hot-plug backplane connector |
| Form factor | Hot-Plug 1U Redundant PSU |
| Tdp (W) | 1,400 |
| Speed | 50/60 Hz |
| Efficiency | 80 PLUS Platinum (94% efficiency at 50% load) |
| Input voltage | 100-240V AC, High-line 200-240V for 1400W output (1000W at 100-120V) |
About the 450-AJRR
The Dell 450-AJRR is a Dell 1400W Platinum Hot-Plug Redundant Power Supply (Common Slot) engineered to deliver clean, redundant electrical power to Dell PowerEdge servers. Operating at high electrical efficiency with 80 PLUS certification, the 450-AJRR converts AC line input into regulated 12V server rail power while minimizing heat dissipation. In Dell's infrastructure catalog, 450-AJRR supports redundant power configurations for continuous server uptime.
Compatibility
Designed for Dell PowerEdge enterprise servers including R740, R740XD, R640, R750, the 450-AJRR slides into rear hot-plug power supply bays. The 450-AJRR operates in 1+1 redundant or 2+0 combined modes when paired with a matching power supply of identical wattage. Input voltage compatibility for the 450-AJRR covers standard data center electrical distributions.
How to identify a genuine unit
Genuine Dell 450-AJRR power supplies feature a silver label displaying DP/N 03W3PC, input/output voltage and current ratings, 80 PLUS efficiency badges, and Dell regulatory approvals. In iDRAC under Power Monitoring, the 450-AJRR reports real-time wattage draw, input voltage, and thermal status.
Buying used
When evaluating a pre-owned 450-AJRR, inspect the rear blind-mate connector fingers for arcing marks, burns, or physical wear. Confirm that the internal cooling fan on the 450-AJRR spins freely without bearing rattle and that the locking release latch snaps securely into chassis bays. Verify in iDRAC that the 450-AJRR reports normal power sharing without input alerts.
Fits these models
- Dell PowerEdge R740
- Dell PowerEdge R740xd
- Dell PowerEdge R640
- Dell PowerEdge R750
- Dell PowerEdge R650
- Dell PowerEdge R760
- Dell PowerEdge R660
Equivalent part numbers
- Dell 3W3PC Dell direct spare part number for 1400W Platinum PSU
FAQ
Can the 1400W PSU run on standard 110V wall outlets?
Yes, but maximum power output is derated to 1000W when connected to 100-120V utility power.
Can I mix this 1400W PSU with a 750W PSU in the same server?
No, Dell PowerEdge redundant power supplies must match in wattage and efficiency rating to operate safely.
Buying or selling 450-AJRR?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell 1400W Hot-Plug Power Supply Technical Specifications, checked 2026-10-27