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DPP2U SERIES
OPERATING MANUAL
P O W E R I N G T E C H N O L O G Y
Manual No. DPP2U-MAN Rev. 5
dpp2u-man-rev5-0719.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.
A minimum air clearance of 1.5” above and below the unit must be maintained after
installation in the rack. Care should be taken not to compromise the stability of the
rack by the installation of this unit.
11.2 Connections.
Input connections should be made with two-terminal crimp type lugs.
See Sections 9.2 and 9.3.
Connection to Supply
a) Connect to a reliably grounded 12VDC to 48VDC SELV source.
b) The branch circuit over-current protection shall be sized appropriate to the input
current and shall not exceed 600A.
c) Use minimum 350Kmcm copper conductors for max. rated input current.
d) A readily accessible disconnect device that is suitably approved and rated is
recommended to be incorporated in the field wiring.
e) To be installed in a Restricted Access Location.
NOTE: Single feed models DPP2U-A1-B1-S and DPP2U-A6-B6-S 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.
The unused side is directly connected to the live input feed and can be used for
supplying additional panels. See figure 10 below.
CAUTION:
The total load must not exceed 450A on any one pair of bus bars in the
chain.
450A MAX. FEED
RETURN
Figure 10. Series Connection of Multiple Panels
Output connections are made to individual output bus bars and common return. See
Section 9.4 and Figure 6.