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Dell 495W redundant power supply unit, matte black metal enclosure with rear exhaust grille

DELL

DELL 3GHW3 495W Redundant Power Supply

SKU CH-5CW6-T6XVR MPN 3GHW3

A 495 W redundant power supply for Dell PowerEdge R520, R620, R720, R720XD, R820, T320, T420 and T620 servers

  • TypeRedundant Power Supply
  • 495 W output powers compatible Dell PowerEdge servers
  • Redundant design maintains uptime if one supply fails
  • Hot-swap capability allows replacement without server shutdown
  • Supports R520, R620, R720, R730, R820, T320, T420, T620 models
  • Dell 3GHW3 part ensures exact fit and firmware match

Compatible Dell PowerEdge servers

This 495W redundant power supply fits Dell PowerEdge R520, R620, R720, R720XD, R820, T320, T420 and T620 chassis. It is designed for IT teams maintaining these specific server models where a hot-swap power module is required. The unit carries Dell part numbers N24MJ, 0N24MJ, 3GHW3 and 03GHW3 for straightforward identification. Buyers who need a supply for other PowerEdge generations or non-Dell hardware cannot use this module.

Thermals, noise and power draw

The supply delivers up to 495W of output power within the thermal envelope defined by the compatible PowerEdge platforms. Redundant architecture allows the remaining module to sustain the load if one unit fails, keeping fans operating at server-managed speeds. Acoustic output follows the host chassis fan curves rather than an independent profile. No separate efficiency rating or idle-draw figure is provided in the source data.

Hot-swap redundancy and part identification

Redundant design enables module replacement without powering down the server, reducing planned or unplanned downtime. Matching the listed Dell part numbers ensures the server management firmware recognises the supply and reports correct health status. The package contains only the power supply module; mounting hardware, cables or management software licences are not included. Administrators who require additional cables or rail kits must source them separately.

Points forts

  • 495 W output powers compatible Dell PowerEdge servers
  • Redundant design maintains uptime if one supply fails
  • Hot-swap capability allows replacement without server shutdown
  • Supports R520, R620, R720, R730, R820, T320, T420, T620 models
  • Dell 3GHW3 part ensures exact fit and firmware match

Caractéristiques

BrandDELL
Model3GHW3
TypeRedundant Power Supply

Questions sur cet article

How do I install the 3GHW3 495W redundant power supply in a PowerEdge R720 and what step is often missed?

Slide the unit into the hot-plug bay until the latch clicks, then connect both IEC cables to separate PDUs; the step often missed is securing the retention lever so the supply cannot unseat under vibration.

What maintenance will the 3GHW3 495W redundant power supply need over its service life?

Clean the intake mesh every three to six months with compressed air and verify both status LEDs stay green; fan assemblies are not user-serviceable, so a noisy or failed fan requires full unit replacement.

What limit appears first when the 3GHW3 495W redundant power supply runs continuously at full load?

The 495 W output ceiling is reached first; sustained draw above that triggers over-current protection and shuts the supply down.

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