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DPU1U SERIES
INSTALLATION & OPERATING MANUAL
P O W E R I N G T E C H N O L O G Y
Document Number: DPU1U-MAN Rev. 4
dpu1u-man-rev1-0719.indd
Figure 9 shows the back combination panel with two distribution sections fitted. Inputs
are at the left and right ends of the back panel. Side B outputs are at two rows of barrier
terminal strips on the left side, and side A outputs are the same on the right side.
Alarm
Contacts
Alarm LEDs
B Input
¼-20 Studs
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
A
B
ALARM
Ground
8-32 Stud
A Side Breakers
B Side Breakers
A Outputs
6-32 Terminal Strip
B Outputs
6-32 Terminal Strip
A Input
¼-20 Studs
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
B SIDE A SIDE
NO-C-NC
NO-C-NC
5
6
3
4
1
2
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
5
6
3
4
1
2
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
OFF
O
ON
I
15
17.12 (434.9)
1.74
(44.2)
REAR VIEW
FRONT VIEW
Case depth: 8.94 (227.1)
2.28
(57.8)
Clear Perspex
Safety Cover
Figure 9. Back Panel View with Dual Distribution
At the center of the back panel are two spring clamp terminal blocks for the Form C relay
contact outputs. Below these is a chassis ground terminal.
9.2
Input Connections (also Output Connections for LVD)
. See Figure 10. The DC power
inputs to the combination panels are made by means of crimp type lugs or direct connection
to ¼-20 studs to two copper bus bars on side A and side B. The upper bus bar is the battery
connection (w or -) and the lower bus bar is the return (w or -).
0.625”
1.48”
0.5”
0.34”
0.375”
0.65”
0.32”
Figure 10. Input Bus Bar Detail
9.3
Crimp Type Lugs.
A list of compatible crimp type lugs is shown in the following table
for AWG wire sizes from no. 1 to 8 and one- or two- hole lugs. These lugs can be ordered
directly from the manufacturer, Panduit Corp., using the model numbers shown in table 4.
A standard kit of four two-hole crimp type lugs for no. 6 AWG copper wire is available from
UNIPOWER. Order kit no. 775-1434-0000.
WIRE
AWG
.25DIA.
HOLES
PANDUIT CORP.
PART NUMBER
UNIPOWER
PART NUMBER
8
1
2
LCA8-14-L
LCD8-14A-L
625-1665-0010
625-1665-0110
6
1
2
LCA6-14-L
LCD6-14A-L
625-1665-0020
625-1665-0120
4
1
2
LCA4-14-L
LCD4-14A-L
625-1665-0030
625-1665-0130
2
1
2
LCA2-14-Q
LCD2-14A-Q
625-1665-0040
625-1665-0140
1
1
2
LCA1-14-E
LCD1-14A-E
625-1665-0050
625-1665-0150
Table 4. Input Cable Lug Sizes & Types
