Eaton 9PXM8S4K User Manual page 18

Physical Features
Figure 4. Battery Modules per Slot
Uninterruptible Power Modules (UPM)
The eight-slot 9PXM chassis can accommodate a maximum of four power modules and the twelve-slot can
contain up to six modules. Each 4kVA has a built in 5 amp battery charger and is cooled by two cooling fans.
(see Figure 5
modules).
NOTE
Figure 5. Uninterruptible Power Module
Super Charger Modules (Optional)
6 4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 10
). One power module (UPM) is able to fully charge five 9PXM battery strings ( 10 9PXM battery
You must install one 9PXM battery string (2 battery modules) in the main UPS chassis
for every power module present or the UPS will sound an "Not Enough Battery" alarm
indication.
Battery Modules (2)