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Table 42 Input power requirements - three-phase, North American, International, Australian
Specification
b
Input voltage
Frequency
Circuit breakers
Power zones
Minimum power requirements
at customer site
a.
L = line or phase, N = neutral, G = ground
b.
An imbalance of AC input currents may exist on the three-phase power source feeding the
array, depending on the configuration. The customer's electrician must be alerted to this
possible condition to balance the phase-by-phase loading conditions within the customer's
data center.
Best Practices for AC Power Connections
North American 4-wire
connection
a
(3 L & 1 G)
200–240 VAC ± 10% L- L
nom
50–60 Hz
50 A
Two
Two 50 A, three-phase
l
drops per bay.
PDU A and PDU B require
l
one separate three-phase
Delta 50 A drops for
each.
International 5-wire
connection
a
(3 L & 1 N & 1 G)
220–240 VAC ± 10% L- N
nom
50–60 Hz
32 A
Two
Two 32 A, three-phase drops
per bay.
AC power specifications
131
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