Vertiv™ NetSure™ 512
NGBB
-48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
20
3.5
For Re-Configuring to a Single -48V Application (w24V or -58V
output)
Perform the following procedure to re-configure all the +24V or -58V breaker positions over to -48V positions.
DANGER!
Performing this procedure exposes service personnel to battery potential. Exercise extreme caution not to
inadvertently contact or have any tool inadvertently contact any energized electrical termination.
DANGER!
All sources of AC and DC power must be completely disconnected from this power system before performing this
procedure. Use a voltmeter to verify no DC voltage is present on the system busbars before proceeding.
DANGER!
Follow local lockout/tagout procedures to ensure DC branch circuit protection devices remain de-energized
during installation at loads, as required.
NOTE!
Save all removed hardware. Hardware will be re-used.
NOTE!
This procedure is not applicable when -58VDC distribution panel 582137000GC is installed in row 1.
Procedure
1.
Verify all AC and DC power sources are disconnected from the power system.
2.
Remove the +24V or -58V link bus bar as shown in Figure 3.15.
3.
Remove the Lexan cover from the front of the distribution panel and turn over all +24V or -58V labels to -48V to set the
correct polarity.
4.
Remove the +24V or -58V FA cable lug and cover or wrap it with the heat shrink tube as shown in Figure 3.16.
5.
Order and install Kit 564354 where there currently is a gap between the -48VDC positions and the +24VDC or -58VDC
positions. See Figure 3.17 and Figure 3.18.
Figure 3.15
Removing the +24V or -58V link Bus Bar
