Lenovo System x3550 M5 Product Manual page 51

Uninterruptible power supply units
The server supports attachments to the uninterruptible power supply (UPS) units listed in the following
table.
Table 33. Uninterruptible power supply units
Part number Description
Rack-mounted or tower UPS units
55941AX RT1.5kVA 2U Rack or Tower UPS (100-125VAC)
55941KX RT1.5kVA 2U Rack or Tower UPS (200-240VAC)
55942AX RT2.2kVA 2U Rack or Tower UPS (100-125VAC)
55942KX RT2.2kVA 2U Rack or Tower UPS (200-240VAC)
55943AX RT3kVA 2U Rack or Tower UPS (100-125VAC)
55943KX RT3kVA 2U Rack or Tower UPS (200-240VAC)
55945KX RT5kVA 3U Rack or Tower UPS (200-240VAC)
55946KX RT6kVA 3U Rack or Tower UPS (200-240VAC)
55948KX RT8kVA 6U Rack or Tower UPS (200-240VAC)
55949KX RT11kVA 6U Rack or Tower UPS (200-240VAC)
55948PX RT8kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)
55949PX RT11kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)
For more information, see the list of Product Guides in the Power infrastructure category:
http://lenovopress.com/systemx/power
System x3550 M5 51