Digital Equipment HA3000, Installation Manual, Page: 71 / 96

INSTALLATION 4–31
4.6.1 Power Cable Connections
The HA32J/K UPS Distribution Cabinet can be ordered with or without an isolation/step-
down transformer. Regardless of the configuration, the UPS Distribution Cabinet power
cables for connecting the UPS Distribution Cabinet to the UPS cabinet are factory
installed in the HA32J/K UPS Distribution Cabinet.
4.6.1.1 AC Input Connection Without Isolation/Step-Down Transformer
The connections to be made are the three-phase, four wires plus equipment ground. The
phase rotation must be A, B, C.
Feed the five (5) cables (three phases, neutral, and ground) through the side cable entry
area of the UPS cabinet.
NOTE
If the HA32C/D/E UPS Auxiliary Cabinet and/or the HA33D/F UPS CSA Cabinet
are also installed, feed the five (5) cables through the side cable entry area of
the UPS Auxiliary Cabinet and/or UPS CSA Cabinet. Run the cables on the
cable tray provided in the UPS Auxiliary Cabinet and/or UPS CSA Cabinet.
Then, feed the five cables through the side cable entry area of the UPS cabinet.
The five cables connecting the HA32J/K UPS Distribution Cabinet to the HA32A UPS
cabinet are marked at the end of each cable. The cables are marked A, B, and C (for the
three power phases), N (for the neutral cable), and G (for the ground cable).
Connect the cables marked A, B, and C to the UPS cabinet output busbars marked A,
B, and C, respectively. Connect the cable marked N to the UPS cabinet busbar marked
Neutral. Connect the cable marked G to the UPS cabinet busbar marked Ground. See
Figure 4–1 and Figure 4–3 for the location of these busbars.
4.6.1.2 AC Input Connection With Isolation/Step-Down Transformer
The connections to be made are the three-phase, three wires plus equipment ground. The
phase rotation must be A, B, C.
Feed the four (4) cables (three power phases and ground) through the side cable entry
area of the UPS cabinet.
NOTE
If the HA32C/D/E UPS Auxiliary Cabinet and/or the HA33D/F UPS CSA Cabinet
are also installed, feed the four (4) cables through the side cable entry area
of the UPS Auxiliary Cabinet and/or UPS CSA Cabinet. Run the cables on the
cable tray provided in the UPS Auxiliary Cabinet and/or UPS CSA Cabinet.
Then, feed the four cables through the side cable entry area of the UPS cabinet.
The four cables connecting the HA32J/K UPS Distribution Cabinet to the HA32A UPS
cabinet are marked at the end of each cable. The cables are marked A, B, and C (for the
three power phases), and G (for the ground cable).
Connect the cables marked A, B, and C to the UPS cabinet output busbars marked A,
B, and C, respectively. Connect the cable marked G to the UPS cabinet busbar marked
Ground. See Figure 4–1 and Figure 4–3 for the location of these busbars.