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PartsTable / POWER_SUPPLY / 451816-001
451816-001 ✓ Verified by PartsTable
HP · POWER_SUPPLY · DC_PSU
WHAT YOU NEED TO KNOW
DC power supplies — be careful not to confuse DC with AC. These are specific part numbers.
DC vs AC confusion is common
PRODUCT OVERVIEW
HP 1200W HOT PLUG 48VDC POWER SUPPLY

HP 1200W HOT PLUG 48VDC POWER SUPPLY. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
POWER_SUPPLY→ DC_PSU→ 451816-001
SPECIFICATIONS
Part Number451816-001
ManufacturerHP
Wattage1200W
COMPONENT DIAGRAM
DC IN -48V / 380V + - 12V OUT PULL HANDLE 80+ TITANIUM, HOT-SWAP DC POWER SUPPLY -48VDC or 380VDC input For telecom / DC-powered racks 1200W, redundant TITLE DC PSU PN 451816-001 MFR HP HP 1200W Hot Plug 48VDC Power Supply
KEY FEATURES
•
1200W Power Rating
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
437573-B21Compatible
HP RPS 1200W DC 48v Common Slot
compatible
444049-001Compatible
HP RPS 1200W DC 48v Common Slot
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
437573-B21SUBSTITUTE
HP RPS 1200W DC 48v Common Slot
HPE
444049-001SUBSTITUTE
HP RPS 1200W DC 48v Common Slot
HPE
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FREQUENTLY ASKED QUESTIONS
What is 451816-001?
451816-001 is a HP 1200W Hot Plug 48VDC Power Supply manufactured by HP. It is classified as a POWER_SUPPLY (DC_PSU).
What parts can replace 451816-001?
There are 2 known substitutes for 451816-001: 437573-B21, 444049-001. Substitute compatibility should be verified for your specific system.
Is 451816-001 still available?
451816-001 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026