Power Supplies
APC by Schneider Electric Back-UPS BX - BX500CI - Uninterruptible Power Supply 500VA (AVR, 3 Outlets IEC-C13)
Note-Plug the UPS to a wall outlet and observe any audible noise from the UPS prior to pressing the On button.Turn on the unit without any load connected to the UPS outlets and observe for any audible noise again Co
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