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DPB1U & DPG1U SERIES
OPERATING MANUAL
P O W E R I N G T E C H N O L O G Y
Manual No. DPB-DPG-4
dpb_dpg-man-rev4-0317.indd
11.0 INSTALLATION
11.1 Mounting.
This distribution panel can be mounted in either 19- or 23-inch racks by using
the supplied reversible brackets. Mount it from the front of the rack using the correct offsets
to align with existing rack-mounted equipment.
The bracket offsets are every quarter inch from front to back.
11.2
Power Connections.
Input connections should be made with one- or two-terminal crimp
type lugs using copper wire size from no. 1 to 8 AWG, depending on current and wire loop
distance. See Sections 9.2 and 9.3. Output connections are made to the barrier terminal
strips. See Section 9.4 and Figure 7.
11.2.1 Single feed models with option S
- Although these models have both left and right
side input bus bars fitted, it is only necessary to connect the input feed to one side
for correct operation. As the unused side is directly connected to the live input
feed it can be used for supplying additional panels in series. See figure 9 below.
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
SIDE A
SIDE B
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
ALM B
ALM A
NO-C-NC
NO-C-NC
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
SIDE A
SIDE B
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
ALM B
ALM A
NO-C-NC
NO-C-NC
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
SIDE A
SIDE B
BAT
RTN
BAT
RTN
1 2 3 4 5 6 7 8 9 10
ALM B
ALM A
NO-C-NC
NO-C-NC
80A/150A MAX. FEED
RETURN
Figure 9. Series Connection of Multiple Panels
When deploying panels with option S, either individually or in a chain, the following
must be adhered to so as to meet with UL safety requirements:
a) The maximum load drawn through the breaker/fuse outputs either side of the
panel may not exceed 75A.
b) The current drawn from one panel in the chain to the next is limited to 75A less
the total amount being drawn through the breaker/fuse outputs on all previous
panels in the chain.
CAUTION: BOTH PAIRS OF INPUT BUS BARS ARE CONNECTED INTERNALLY
AND MAY PRESENT AN ENERGY HAZARD. THE SAFETY COVER MUST BE
FITTED WHEN INSTALLATION HAS BEEN COMPLETED TO MINIMIZE RISK.
11.3
Alarm Connections.
Form C relay contact output connections are made to the spring clamp
terminal blocks. See Section 9.5. The chassis ground connection is made to the no. 8-32
stud. See Section 9.6. This safety ground connection should be made before operating the
panel.
