Filter
Top Products
Fig 4-6 Voltages Delivered to the Output Terminal Block
.
Fig 4-7 Output Wiring Neutral Ground Bond
Output Overcurrent Protection
Symmetra
TM
requires output voltage overcurrent protection
in accordance with the ratings in table 4-2. If an optional
PDU is installed on the Power Array, the panel circuit breaker
acts as the overcurrent protection for the PDU receptacles
and the hardwired connections. See figure 4-11 and 4-12. If a
PDU panel is not installed, circuit breakers must be installed
in the power panels as shown in figures 4-8 and 4-9.
Output Wiring
Output voltage is delivered to the load equipment via
hardwired connections and/or via receptacles on an optional
power distribution unit (PDU). To facilitate maintenance
and service of the Power Array, it is recomended that flexible
metal conduit be used for all hardwiring connections.
See table 4-2 for output wiring specifications.
Output Wiring Configurations
The Power Array is typically wired to deliver either120V/240V,
or 120V/208V/240V output voltages. The internal wiring to
the output terminal block is depicted in figure 4-6. Note the
neutral ground bond in figure 4-7. Wiring configurations
for installations with a power panel are provided in figures
4-8 and 4-9. If wiring is to be connected directly to the load
equipment, refer to table 4-3 for the correct terminal con-
nections.
Note: Use only the connections shown in table 4-3. All others
will yield voltages other than normal utility voltages.
egatloV *snoitcennoC
V021 8-6ro8-2
V042 6-2
V802 6-4
rehtollA.snoitcennocesehtylnoesU*
nahtrehtosegatlovdleiylliwsnoitanibmoc
.segatlovytilitulamron
Table 4-3 Terminal Block Voltage Combinations
tuptuO
egatloV
emarF
eziS
AVk.xaM(
)gnitaR
mumixaM
rePtuptuO
rotcudnoC
tuptuO
tnerrucrevO
noitcetorP
)lanretxE(
muminiM
tuptuO
eriW
eguaG
muminiM
dnuorG
eriW
eguaG
caV042/021
)dnuorg+seriw-2(
)AVk8(iniM
)AVk61(retsaM
pmA04
pmA08
)elop-2(pmA05
)elop-2(pmA09
eguaG8#
eguaG3#
eguaG8#
eguaG3#
caV042/802/021
)dnuorg+seriw-3(
)AVk8(iniM
)AVk61(retsaM
pmA04
pmA08
)elop-3(pmA05
)elop-3(pmA09
eguaG8#
eguaG3#
eguaG8#
eguaG3#
Table 4-2 Output Wiring Specifications
4-4
Chapter 4 - Electrical Requirements and Procedures
Neutral
Ground
Bond