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PDUAC3U SERIES
OPERATING MANUAL
P O W E R I N G T E C H N O L O G Y
Manual No. pduac3u-3
pduac3u-man-rev3-0317.indd
9.0 BACK PANEL DESCRIPTION
9.1
Back View
. Figure 4 shows the back of of the PDUAC3U. Inputs are at the left
hand end. The outputs are to the right of this and consist of three barrier strips with
associated ground screws. There are sufficient connections for connecting to a total
of 3 rectifier shelves, each with 4 separate AC inputs.
LOAD CONNECTIONS
(Banks 2 & 3)
AC INPUT
CONNECTIONS
LOAD CONNECTIONS
(Bank 1)
Figure 4. Back Panel View
9.2
Input Connections
. The AC power inputs to the PDU are made through the five
compression terminal blocks marked GND, N, L1, L2 & L3. The recommended
cable size for these connections is #2AWG.
9.3
Output Connections.
Output connections are shown in Figure 4. There are 3 sets
of barrier strip terminals. The connections are numbered to correspond with the
numbers of the front panel breakers. Each barrier strip is intended for making output
connections to a single rectifier shelf. Above the barrier strips are separate screws
which are used to make the ground connections.
Barrier strip connection use No. 6-32 screws. Recommended wire size is #10AWG.
Figure 5 below shows detailed spacing of the terminals.
0.375
(9.53)
0.65
(16.5)
0.32
(8.1)
Figure 5. Output Barrier Strip Detail
The ground connections use No. 8-32 screws. The recommended wire size for these
connections is #10AWG. Note that it is important to use separate wires for each
ground connection to the rectifier shelf.
