Dc Wiring; Table 5 Dc Conductor Size And Torque Requirements - Outback FXR2012E Installation Manual

Installation

DC Wiring

Table 5
Inverter
(Wattage/Voltage)
FXR2012E
VFXR2612E
FXR2024E
VFXR3024E
FXR2348E
VFXR3048E
Terminal Location
Inverter DC Terminals
Battery Terminals
When installing DC cables:
 Battery positive and negative cables should be no longer than 3 meters (10 feet) each, to minimize voltage
loss and other possible effects.
 Turn off DC circuit breakers or remove fuses before proceeding.
 Tie, tape, or twist cables together to reduce self-inductance. Run positive and negative cables through the
same knockouts and conduit.
 The inverter's battery terminal is a threaded stud which accepts a ring terminal lug. Use crimped and sealed
copper ring lugs with 0.79 cm (5/16 inch) holes, or use compression lugs.
 Install all overcurrent devices on the positive cable.
3
Cable sizes are for each inverter in a system. In a system with multiple inverters, each inverter requires its own cables and overcurrent
devices of the size indicated.
20
WARNING: Shock Hazard
Use caution when working in the vicinity of the inverter's battery terminals.
CAUTION: Equipment Damage
Never reverse the polarity of the battery cables. Always ensure correct polarity.
CAUTION: Fire Hazard

The installer is responsible for providing overcurrent protection. Install a
circuit breaker or overcurrent device on each DC positive (+) conductor to
protect the DC system.

Never install extra washers or hardware between the mounting surface
and the battery cable lug. The decreased surface area can build up heat.
See the hardware diagrams on page 21.
IMPORTANT:

The DC terminals must be encased in an enclosure to meet the requirements
of some local or national codes.

Table 5 contains OutBack's recommendations for minimum safe cable sizes.
Other codes may supersede OutBack's recommendations. Consult applicable
codes for final size requirements.
DC Conductor Size and Torque Requirements
Nominal DC Amps
(Derated 125%)
200
260
100
150
57.5
75
3
Conductor Size
(Minimum)
120 mm2 (4/0 AWG) or 0.186 in2
120 mm2 (4/0 AWG) or 0.186 in2
70 mm2 (2/0 AWG) or 0.109 in2
120 mm2 (4/0 AWG) or 0.186 in2
70 mm2 (1/0 AWG) or 0.109 in2
70 mm2 (1/0 AWG) or 0.109 in2
Torque Requirements
6.9 Nm (60 in-lb)
See battery manufacturer's recommendations
Breaker Size
(Minimum)
250 Adc
250 Adc
175 Adc
250 Adc
125 Adc
125 Adc
900-0168-01-00 Rev A