Arista PWR-460AC-F 460W AC F-B Power Supply for 7048, 7050, 7100, 7150 Series

The PWR-460AC-F is a spare 460W AC power supply for older Arista fixed switches, the 7124SX, the first-generation 7050, the 7150 and the 7048-A. A spare supply keeps these switches running when an installed unit fails.

Input is 100 to 240V AC, so it runs on standard 120V circuits as well as 208V and 230V. Arista does not state an efficiency figure for this supply.

This version moves air front-to-back (port-side intake). Arista also sells the opposite airflow version, the PWR-460AC-R. Match the supply to the fan modules in the switch and to the rack's hot and cold aisles, since every fan and power supply in the switch should push air the same way.

In a switch running two supplies, a failed unit can be replaced while the switch keeps running on the other. Check the part number on the installed supply before ordering a spare so the airflow and input type match.

Arista also sells the PWR-460AC-R power supply with the opposite airflow. A new PWR-460AC-F is also available.

Because the unit is hot-swappable, you can replace a failed supply in a redundant pair without powering the switch down. Install it while the other supply carries the load, then confirm both supplies show as healthy.

This seller refurbished PWR-460AC-F is tested, working, and covered by the NetworkTigers one-year warranty.