NonStop S-Series Planning and Configuration Guide (G06.29+)

Modular Power Information
HP NonStop S-Series Planning and Configuration Guide—523303-021
G-5
Power Distribution Unit Wiring
The following wiring diagrams are provided for the installer to balance the load
between the phases. It is possible to inadvertently plug modules into a single phase
rather than distribute the load across all three phases.
PDU, Unstrapped This view shows the inner wiring of a PDU without strapping.
PDU, Three Phase, Delta
(North American)
The delta configuration is typical of North American usage. Input is
three phase, 120 VAC, outlet single phase 208 VAC, with ground,
and no neutral
PDU, Three Phase, Wye The wye configuration has Input of three phase, 250VAC, and outlet
of single phase 250 VAC, with ground and neutral
PDU, Single Phase
Input, single phase, 250VAC, outlet single phase 250 VAC, with
both ground and neutral.