DELL 3GHW3 495W Redundant Power Supply

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.