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Dell 495W server power supply unit, silver metal enclosure, rear exhaust grille, side power connector, model 3GHW3

DELL

DELL 3GHW3 495W Power Supply for PowerEdge T320 T420 T620 R620 R720 R720xd

SKU CH-KD5J-NVD0N

A 495 W proprietary power supply compatible with PowerEdge T320, T420, T620, R620, R720 and R720xd servers

  • TypeProprietary Power Supply
  • 495 W output powers Dell PowerEdge T320 T420 T620 R620 R720 R720xd servers
  • 25 A surge and 22 A continuous at 13.8 Vdc deliver stable current
  • Adjustable 9–15 Vdc front-panel voltage with over-voltage protection safeguards equipment
  • Dual AC input 110 VAC at 47–62 Hz and 220 VAC at 47–63 Hz supports global power
  • Compact 4.2 lb unit fits standard server bays for easy integration

Dell 3GHW3 495W Power Supply

The Dell 3GHW3 is a 495 watt proprietary power supply designed for PowerEdge T320, T420, T620, R620, R720 and R720xd servers. It delivers 25 amps surge and 22 amps continuous at 13.8 Vdc to support compatible rack and tower systems. This unit weighs 4.2 lbs and measures 5 ¾ inches wide by 4 ½ inches high by 6 inches deep.

Replacement for failed or ageing Dell server PSUs

This supply replaces a failed or ageing unit in the listed PowerEdge models when the original 495 watt capacity matches the system configuration. The jump is worth it when the existing supply shows instability, fan failure or cannot sustain 22 amps continuous load. It accepts 110 VAC at 47 to 62 Hz and 220 VAC at 47 to 63 Hz with automatic reset after shutdown.

Limits of the proprietary Dell form factor

The proprietary form factor restricts use to the specific PowerEdge chassis listed and prevents installation in standard ATX cases or non-Dell servers. Front panel adjustable voltage ranges from 9 to 15 Vdc with over-voltage protection, but the binding posts and cigarette lighter socket are intended for radio and mobile accessories, not general PC peripherals. No redundant hot-swap capability is provided by this single unit.

Pluspunten

  • 495 W output powers Dell PowerEdge T320 T420 T620 R620 R720 R720xd servers
  • 25 A surge and 22 A continuous at 13.8 Vdc deliver stable current
  • Adjustable 9–15 Vdc front-panel voltage with over-voltage protection safeguards equipment
  • Dual AC input 110 VAC at 47–62 Hz and 220 VAC at 47–63 Hz supports global power
  • Compact 4.2 lb unit fits standard server bays for easy integration

Specificaties

TypeProprietary Power Supply

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Will the 495 W proprietary unit fit in a PowerEdge R720 chassis?

The power supply is listed as compatible with PowerEdge R720 and R720xd servers, so it matches the proprietary form factor used in those chassis.

What is the common mistake when installing this supply in a T420?

The module must be pushed in until the release lever clicks; stopping at the first resistance leaves it on standby power only.

How often should the internal fan be cleaned on a 495 W unit running at 22 A continuous?

Inspect the fan intake every six months and blow out dust with compressed air; a clogged intake reduces airflow and can trigger thermal shutdown.

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