4-1
EATON
Powerware
®
9390 IAC-D Installation and Operation Manual
S
164201591 Rev B
powerware.com
Chapter 4
Understanding IAC-D Operation
4.1 Distribution Panelboard Configuration
Power from the UPS is routed to one or two 42-pole Distribution Panels through a
Panelboard Input breaker. Power is then distributed to the critical loads through
customer-provided branch circuit breakers.
Figure 4-1 shows the path of electrical power through the IAC-D with Distribution
Panelboards.
4.2 Distribution Breaker Configuration
Power from the UPS is routed to one to six Distribution Breakers. Power is then distributed
to the critical loads through the Distribution Breakers.
Figure 4-2 shows the path of electrical power through the IAC-D with Distribution Breakers.
4.3 Distribution Panelboard and Distribution Breaker Configuration
Power from the UPS is routed to one 42-pole Distribution Panel through a Panelboard
Input breaker and to one to three Distribution Breakers. Power is then distributed to the
critical loads through customer-provided branch circuit breakers or the Distribution
Breakers.
Figure 4-3 shows the path of electrical power through the IAC-D with a Distribution
Panelboard and Distribution Breakers.
Summary of Contents for Powerware 9390 IAC-D
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