Installing Ups External Battery Cabinet And Battery Power Wiring - Eaton 93PM User And Installation Manual

4.3 Installing UPS external battery cabinet and battery
power wiring
For 93PM 50 kW UPS there are two different battery cabinet frames, EBC-S and EBC-L. Both of them
are equipped with 36 batteries. External batteries are to be installed in parallel to internal ones for
extending the back-up time of UPS-system.
Power and control wiring for integral line-up and match battery cabinets are supplied with the
cabinets. The battery cabinet must be located to the right of the UPS cabinet.
There are four cable entries in the battery cabinet. It can be wired in the following ways:
• through the left side panel
• through the right side panel
• through the back wall
• through the roof
Cable entry to the UPS is always on the lower right, or back wall, or the bottom of the cabinet.
NOTE
If batteries are wired outside the cabinets, follow the installation instructions given in Chapter
3.2.2 UPS system power wiring preparation.
28 30–50kW
User's and Installation Guide
P-164000249
Revision 1