Sourced for enterprise IT teams, the HP 503296-S21 (503296-S21 - HP 460-Watts 100V-240 V AC Hot-Swappable High Efficiency Platinum Power Supply for ProLiant BL280C/BL460C,BL280C G6 Server) is a Power Supplies component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include power of 460W, voltage of 100V, generation of Gen6, features of Hot-Swap. Typical use cases include in-place upgrades, EOL replacement under existing OEM service contracts, lab/test environments, and refurbished-rebuild programs. Pro Disk Network sources the 503296-S21 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The 503296-S21 is a HP power supplies component with power 460W, voltage 100V, generation Gen6. Pricing on the 503296-S21 is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 503296-S21 are shown on this page.
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US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
The 503296-S21 is a HP power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 503296-S21 ship?
Pro Disk Network dispatches the 503296-S21 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 503296-S21 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Branch UPS — Office or remote site UPS. 1500–3000 VA covers most server-rack mini-deployments with 5–15 minute runtime.
Datacenter UPS Module — Online double-conversion UPS for production server rooms. Match VA rating to total connected load + 30% headroom.
Telco / Battery Backup — DC-powered batteries for telco-class equipment, ISP CPE, and outdoor cabinets. Confirm voltage (-48 V vs +12/24 V).
What is the 503296-S21?
The 503296-S21 is a HP server power supply unit with power 460W and voltage 100V, manufactured by HP. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 503296-S21
Pros
Lower cost than OEM channel pricing
Matched-pair option for dual-PSU redundancy
Cons
Wattage headroom should be sized at 70-80% sustained load
Cable harness sold separately on certain chassis
OEM warranty does not transfer with refurbished units
Frequently Asked Questions about 503296-S21
Is the 503296-S21 a genuine HP part?
Yes. Pro Disk Network sources every 503296-S21 as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 503296-S21 fit my system?
The 503296-S21 is a HP power supplies part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 503296-S21 ship?
Pro Disk Network dispatches the 503296-S21 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 503296-S21?
New 503296-S21 units carry the full HP manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 503296-S21?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 503296 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
503296-001 — 503296-001 - HP 460-Watts 100V-240 V AC Hot-Swappable High Efficiency Platinum Power Supply for ProLiant BL280C/BL460C/BL280C G6 Server — $36.00
503296-B21 — 503296-B21 - HP 460-Watts 100V-240 V AC Hot-Swappable High Efficiency Platinum Power Supply for ProLiant BL280C/BL460C,BL280C G6 Server — $150.40
503296-B22 — 503296-B22 - HP 460-Watts 100V-240 V AC Hot-Swappable High Efficiency Platinum Power Supply for ProLiant BL280C/BL460C/BL280C G6 Server — $116.19
Pro Disk Network Buyer’s Guide: Power Supplies
PSU Sizing: Connected Load, Efficiency Curves, and N+1 Redundancy
For racks with shared PDUs, plan PDU capacity at 80% of breaker rating, not 100%. A 30A PDU should carry no more than 24A sustained. Distribute high-power chassis across multiple PDUs in dual-feed racks so a single PDU failure does not exceed the survivor's headroom.
AC Input, Phase Balancing, and Datacentre Power Best Practices
The 503296-S21 accepts a defined AC voltage range, typically 100-240V or 200-240V for high-output server PSUs. Higher voltage = higher efficiency: a server PSU at 240V input runs 1-2% more efficient than the same PSU at 120V. In datacentres with 208V three-phase, balance loads across the three phases to avoid neutral saturation and reduce harmonic distortion on the upstream UPS.