Shelf Installation; Figure 12 - Ac Screw Terminal Detail - Unipower Bluestrak Series Operating Manual

P O W E R I N G T E C H N O L O G Y
17.0

SHELF INSTALLATION

Mounting - BLUEstreak Series 19-inch rack-mount power shelves are provided with
17.1
universal rack- brackets that allows them to be mounted into a 1U high space in both 19-
inch and 23-inch racks. The brackets can be located at various positions in the side of the
shelf to allow for offset mounting in the rack.
To minimise obstruction to ventilation UNIPOWER advises that any equipment mounted
directly above the BLUEstreak power shelf should be shorter in overall depth.
Input Power Connections - Depending on the exact model AC input power connections
17.2
are made to the IEC60320-C20 or Terminal Blocks mounted at the rear of the power shelf.
Each module position has its own input connector or terminals. For models incorporating
IEC60320-C20 connectors UNIPOWER can supply various line cords; see the current
datasheet for details. For models with Terminal Block connections a 3-wire connection
is required for each module position that is to be used. The minimum suitable cable size
for these connections is 14AWG or equivalent. It is recommended that each input feed is
protected by its own circuit breaker. When using the version with Terminal Blocks the
supplied safety covers should be fitted. The terminal block connections are #8-32 threaded
screws with a 0.437" spacing, see figure 12 below.
0.625 (15.88)
- V
DC Output Connections - DC output connections are provided at the rear of the power
17.5
shelf on two pairs of bus bars. Each pair is rated to carry a maximum of 200A. On single
bus power shelves the bus bars are connected internally thus allowing a total output current
of 400A maximum when both bars are used. On dual bus power shelves the two pairs of bus
bars are isolated from each other and thus allow side A to have different voltage modules
installed to side B. In all cases the output polarity can be configured either positive or negative
as desired. Dual bus shelves will allow for a true A+B supply to equipment requiring such a
facility. The four 1/4-20 threaded bolts on each bar are spaced 0.625" apart. UNIPOWER
can supply various pre-made DC load cables; see the current datasheet for available options.
Users wishing to fabricate their own DC cables should note that such cables should be rated
to handle at least 300A.
Document Number: BLUESTREAK-MAN Rev. 6
+V

Figure 12 - AC Screw Terminal Detail

200A Max.
OUTPUT B
INSTALLATION & OPERATING MANUAL
0.437 (11.10)
AC4/AC3
or
DC4/DC3
Page 27
BLUESTREAK SERIES
J1 J2 J3 SW1
8-32 threaded screws
Frame
Ground
bluestreak-man-rev6-0719.indd
8-32
0.5" length