IMPORTANT
This product requires batteries for operation.
The required nominal voltage is either 12, 24, or
48 Vdc, depending on model.
The default inverter/charger settings assume a
deep-cycle stationary lead-acid battery, such as
OutBack Power’s EnergyCell RE or NC series
batteries. Ensure the settings are appropriate
for the specific batteries used in the system.
Protection for the battery circuit external
to this product must be provided by the installer.
Protection for the AC circuit external to this
product must be provided by the installer.
For more information, see the FXR
Installation
Manual
.
Wiring Data
Ground Lug
1
AC Neutral
Terminals
2
3
4
Battery Positive Stud
Battery Negative Stud
5
AC Hot Out Terminal
6
Ground Terminals
Inverter On/Off Jumper
7
8
AC Hot In Terminal
9
10
Inverter On/Off Terminals
Auxiliary Terminals
11
12
13
14
Temperature Sensor Port
Communication Port
Battery LED Indicators
Status LED Indicators
900-0213-01-00 REV B
Do not copy or distribute without permission.
DC Wiring Notes
o
Battery cables should be no longer than 10 feet (3 m) each to minimize voltage loss and other possible effects.
o
Turn off DC circuit breakers before proceeding.
o
Tie, tape, or twist cables together to reduce self-inductance. Run positive and negative cables through the same
knockouts and conduit.
o
Each inverter battery terminal is a threaded stud which accepts a ring terminal lug. Use crimped and sealed copper ring
lugs with
5
/
16
inch (0.79 cm) holes, or use compression lugs.
o
Install overcurrent devices according to applicable codes.
o
The DC terminals must be installed in an enclosure to meet the requirements of some local or national codes.
AC Wiring Notes
o
Recommended conductor size is #6 AWG (16 mm
2
) or 0.021 in
2
.
o
Inverter output varies with model. Size the loads accordingly.
o
The transfer relay is rated 60 Aac; AC input and output may need to be protected with branch-rated circuit breakers of
maximum 60 Aac size to meet applicable code requirements.
o
The neutral terminals are common. Typically only one is used.
o
Only one AC source can be wired at a time. Use an external selector switch if more than one source is available.
Generator Notes
A generator should be sized to provide enough power for maximum loads and charging at the same time.
Minimum generator size is recommended to be twice the power of the inverter(s) due to overload and/or
balancing issues.
1
2
3
4
5
5
6
7
8
9
10
11
12
13
14
6
Inverter
(Wattage/Voltage)
Nominal
DC Amps
(Derated 125%)
Conductor Size
(Minimum)
Breaker
Size
(Minimum)
FXR2012A
VFXR2812A
FXR2524A
VFXR3524A
FXR3048A
VFXR3648A
Terminal Location
Inverter DC Terminals
Battery Terminals
200
4/0 AWG (120 mm
2
) or 0.186 in
2
250 Adc
280
4/0 AWG (120 mm
2
) or 0.186 in
2
250 Adc
125
2/0 AWG (70 mm
2
) or 0.109 in
2
175 Adc
175
4/0 AWG (120 mm
2
) or 0.186 in
2
250 Adc
75
1/0 AWG (70 mm
2
) or 0.109 in
2
125 Adc
90
1/0 AWG (70 mm
2
) or 0.109 in
2
125 Adc
Torque Requirements
60 in-lb (6.9 Nm)
See battery manufacturer’s recommendations
CAUTION:
Equipment Damage
When connecting battery cables to the
inverter, observe the proper polarity.
Incorrect connection can damage or
destroy the equipment and void the
product warranty.
!
M8 x 1.25 Stud
Insulator
Mounting
Surface
Battery
Terminal Post
Lock Washer
Battery Cable Connections
13 mm Nut
Battery
Cable
Lug
CAUTION: Fire Hazard
Do not stack battery terminal hardware
in any other order than shown here.
Stacking terminal hardware in any other
order can overheat the terminals.
Other devices may be installed on
the same inverter studs above the
hardware shown here.
!
Grounding Notes
o
This product meets the IEC requirements of Protection Class I.
o
This product must be connected to a permanent wiring system that is grounded according to the IEC 60364 TN standard.
o
The input and output circuits are isolated from ground. The installer is responsible for system grounding according to all
applicable codes.
o
The central AC ground terminals are common. Typically only one is used.
WARNING: Shock Hazard
For safety, the neutral and ground conductors should be mechanically bonded. OutBack Power
does not bond these conductors within the inverter. Some codes require the bond to be made at the
main panel only. Make sure that no more than one bond is present in the AC system at any time.
For all installations, the negative battery conductor should be bonded to the grounding system at
only one point. If the OutBack Power GFDI is present, it can provide the bond.
Terminal Location
Minimum Conductor Size
Torque Requirements
Central AC Terminals
DC Box Lug
#10 AWG (0.009 in²) or 6 mm²
25 in-lb (2.8 Nm)
#6 AWG* (0.025 in²) or 16 mm²
45 in-lb (5.1 Nm)
*Accepts up to 1/0 AWG (70 mm² or 0.109 in²) wire. The DC Cover or Turbo Fan must be removed before making the ground connection.
Flat Washer
1
