Outback Power GS4048A and GS8048A Installation Manual

Installation
900-0160-01-00 Rev A 21
Table 4 DC Conductor Size and Torque Requirements
Inverter Nominal DC Amps
(Minimum, per breaker)
(Derated 125%)
Conductor Size
(Minimum, per breaker)
Breaker Size
GS8048A
104
2/0 AWG 0.105 in²) or 70 mm²
175 Adc/AIC 10kA
GS4048A
104
2/0 AWG 0.105 in²) or 70 mm² 175 Adc/AIC 10kA
Terminal Location Torque Requirements
Inverter DC Terminals 60 in-lb (6.9 Nm)
Battery Terminals See battery manufacturer’s recommendations
When installing DC cables:
 Make certain DC circuit breakers are turned to the off position, or fuses are removed, before proceeding.
 Battery positive (+) and negative (–) cables should not exceed 10 feet (3 m) each to reduce voltage loss and other effects.
 The modular construction of the GS8048A requires the use of two DC circuit breakers or fuses.
 The cables for each overcurrent device must
each
be sized appropriately. Alternately, a single cable or bus may be used
if sized to the minimum total ampacity. The cables listed above are for each inverter in a system. In a multiple-inverter
system, each inverter requires its own cables and overcurrent devices of the size indicated.
 Install all overcurrent devices on the positive cable.
 Tie, tape, or twist positive and negative cables together to reduce self–inductance. Run positive and negative cables
through the same knockouts and conduit.
NOTE
: Do not install hardware in a different order from the illustrations shown in
Error! Reference source not found.
. In
all cases the battery cable lug must be the first item installed. It must make solid contact with the surface.
Figure 16 DC Cable Hardware (Radian inverter)
 If the battery cables are connected directly to the Radian
inverter, the hardware should be arranged as shown in image A.
The inverter’s battery terminal is a threaded hole which accepts
a hex bolt (provided). The battery cable lug must have a
0.79 cm (5/16") diameter hole.

If the inverter is installed with the GS Load Center (GSLC),
follow GSLC instructions for cable and hardware installation.
The hardware should be arranged according to the appropriate image below.

GSLC models used with the GS8048A inverter are equipped with a DC positive (+) plate. The plate accepts an M8 hex
bolt and nut. See image B.

GSLC models used with the GS4048A inverter do not use the DC positive plate. The cable lugs are connected to the
DC disconnect, which uses a threaded M8 stud. See image C.
 All GSLC models connect the battery negative cables to the shunt, which is threaded for 3/8” bolts. See image D.
Battery Cable
Lug
Flat Washer
M8-1.25 Hex Bolt
Mounting
Surface
Lock Washer
Battery
Cable Lug
M8-1.25 Hex Bolt
Lock Washer
Flat
Washer
DC
Positive
(+) Plate
Nut
Flat Washer
GS-SBUS
Battery
Cable Lug
Flat Washer
Lock Washer
Shunt
B
DC Disconnect
Battery
Cable Lug
Battery Monitor
Ring Terminal
Charge
Controller Ring
Terminal
Flat Washer
Lock Washer
Nut
M8 Stud
C
D
A
3/8” Hex Bolt