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Overview
26 60kW InfraStruXure PDU—Operation and Configuration
Rear view of PDU without transformer (interior)
The Main input circuit breaker connects to either the upstream UPS
or Mains. The circuit breaker accepts 400V input and requires L1,
L2, L3, N, and PE input conductors.
Note: This breaker also serves as the Main Output (disconnect)
breaker on PDUs without a transformer.
The PDU monitoring unit has several current and voltage
monitoring boards that report to a central board assembly located in
the PDU monitoring unit. The PDU monitoring unit has one
10BaseT (Cat-5) connection to the Information Controller hub (or
switch), four relay output connections, four input contact
connections, and one EPO input connection. Make these connections
at the user connection plate located on the roof of the PDU. See
“PDU monitoring unit” on page 27 and “User connection plate” on
page 28 for a more detailed description.