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Chapter 9: Turning up the
DC Power System
WARNING
!
WARNING! The power system is UL rated at 75 Amps, 240 VAC, and 10kA fault current rat-
ing to power the nrgSMART's DC power plant in the enclosure. Ensure compliance with
local electrical codes and the National Electrical Code when connecting the AC power to
the nrgSMART enclosure, including the use of breakers that are UL489-listed and Square
D QOB3100 or equal.
ALERT
ALERT! Do not mount any rectifiers until all cabling is completed.
ALERT
!
ALERT! Before you mount the rectifiers, make sure the circuit breakers at the AC distribu-
tion panel are in the “OFF” position. Keep each rectifier in its packaging until you are
ready to mount it in the rack.
9.1 Turning up the DC Power System
Procedure steps:
1. Slide the rectifiers into the slots at Layer 2, depending on which breaker you are turning on.
Rectifier 1
Rectifier 2
Rectifier 3
Rectifier 5
Rectifier 6
Figure 56 - Matching the Rectifier Slots with their Breakers
Rectifier 4