FLEXpower TWO Quick Start Guide

Wire Sizes/Torque
Requirements
AC Circuit Breakers
DC Enclosure
Control Wiring Terminal Block:
The I
NVERTER ON/OFF terminals are used to connect an
external ON/OFF switch. To use this feature, the jumper
must be removed. (See installation manual for details.)
The A
UX terminals provide a 12 Vdc signal. The AUX
terminals can be used to start a generator or to control
external devices.
A
UX terminals are also available on the charge
controller and the FLEXnet DC. (See the charge
controller or FN-DC literature for details.)
Mounting
WARNING: Fire/Explosion Hazard
Do not place combustible or flammable materials within 12 feet (3.7 m) of the equipment. This unit employs mechanical
relays and is not ignition-protected. Fumes or spills from flammable materials could be ignited by sparks.
WARNING: Personal Injury
Use safe lifting techniques and standard safety equipment when working with this equipment.
IMPORTANT:
Clearance and access requirements may vary by location. Maintaining a 36” (91.4 cm) clear space in front of the system for
access is recommended. Consult local electric code to confirm clearance and access requirements for the specific location.
FP2 Dimensions:
20.25" (51.4 cm) H X 36.5" (92.6 cm) W X 13.5" (34.3 cm) D
900-0152-01-02 REV A
©2018 OutBack Power Technologies. All Rights Reserved.
CAUTION: Equipment Damage
When connecting cables from the inverter to the
battery terminals, ensure the proper polarity is
observed. Connecting the cables incorrectly can
damage or destroy the equipment and void the
product warranty.
Torque requirements for
the conductor lugs
Circuit
Breaker Stud
Torque
In-lb Nm
M8 20 2.3
¼ - 20 35 4.0
5/16 - 18 50 5.6
3/8 - 16 225 25.4
AC Wire Sizes and Torque Values
OutBack recommends that conductors be
#6 AWG THHN copper, or larger, rated to 75°C
(minimum) unless local code requires otherwise.
AWG In-lb
#14 to 10 20
#8 25
#6 to 4 35
#3 35
#2 40
#1 50
1/0 50
mm
2
2.5 to 6
10
16 to 25
35
35
50
70
Nm
2.3
2.8
4.0
4.0
4.5
5.6
5.6
Wire Size Torque
Shunt
Bolt 3/8"
Lock Washer
Flat Washer
Battery
Negative
(–) Lug
Negative (–) Battery
Cable Connections
Bolt 3/8"
DC
Positive
(+) Plate
Battery
Positive
(+) Lug
Flat Washer
Positive (+) Battery
Cable Connections
Nut
Lock
Washer
AC Enclosure
HUB10.3 Communication Manager
DC Enclosure
1
2
3
AC Enclosure
1
Inverter
3
3
9
6
7
8
Mechanical Interlock (Bypass)
9
MATE3s System Display and Controller
6
7
Charge Controller, FM____
(including PV, battery, ground,
and A
UX terminals, RTS port
and communication port)
Battery (DC) Circuit Breakers
FLEXnet DC (FN-DC)
(including communication port)
11
4 5
8
15
15
Inverter Chassis Ground
DC Positive (+) Plate
13
10
14
DC Negative (–) Plate
14
14
Surge Protector
16
17
RTS and Communication Ports
16
16
17
17
FP2 Mounting:
1. Ensure the mounting surface
is stron
g enough to handle
3
times
the total weight
of all
the compo
nen
ts.
2.
Using additional peo
ple to
assist with lifting, place the
pa
nel on the wall.
Ensure
the pa
nel is level.
3. Secure the panel into the
surface using a mi
nimum
of 10 lag bolts (or other
ap
propriate hardware)
.
4.
Remove the covers from
the AC Enclosure and
the DC Enclosure.
5. Follow the instru
ctions
for installing the M
ATE
3s
mou
nting bracket.
6. Follow the instru
ctions for
installing
charge cont
rollers.
Th
e illustration below
shows
bracke
t mounting for the
FM60 or FM80. The FM10
0
does
not attach to the FP2.
1
2
3
4
5
6
1 2
3
4
4
5
6
15
DC
Negative
(–) Plate
Flat Washer
10 13
4
4
AUX Output and ON/OFF Terminals
15
Minimum DC Cable based on the
DC Circuit Breaker
Torque
In-lb Nm
DC
Circuit
Breaker
Cable Size
50 5.6
225 25.4
225 25.4
125 1/0 (70 mm
2
)
175 2/0 (70 mm
2
)
250 4/0 (120 mm
2
)
35 4.080 #4 AWG (25 mm
2
)
35 4.060 #6 AWG (16 mm
2
)
PV Input Circuit Breakers
(may include GFDI)
12
2
12
11
13
10
5
4