Quick Installation Guide
Packing List
X3-Forth inverter x1
Bracketx1
M8Boltx2
Female DC connectorx24
Male DC connectors x24
Installation guide
X3-Forth 40.0kW-150.0kW
Installation guide x1
User manual x1
*Note: The double offset ring wrench in the accessory bag is used to remove the screws on the front cover of the inverter. Keep it in a safe place
I
Grounding connection
- Strip the 35-70 mm²grounding cable insulation
- Pull the heat-shrink tubing over grounding cable
- Select OT copper terminal (M8)
A=B+(2~3mm)
B
- Pull the heat-shrink tubing onto crimped section of OT terminal
- The tubing must be at below stripped cable section
- Use hot-air blower to shrink it
so that they are in firm contact with OT terminal
PV connection
I
- Disassemble the DC contactor
Positive DC contactor
Positive PV pin
Positive terminal
Negative DC contactor
Negative PV pin
Negative terminal
Positive DC
PV pin
Negative DC
PV pin
Clamp pin
- Connect the PV cable to the corresponding PV port
X3-Forth 40.0kW-150.0kW
Communication connector x1
M10xL40 Bolt combination x4
Positive DC pin contact x24
Double offset ring wrench x1
Negative DC pin contact x24
WiFi (Optional)
- Insert the stripped section into OT terminal.
- And crimp with crimping tool
C=A+2 cm
Heat-shrink tubing
- Connect the grounding cable to grounding
point on the inverter
- Tighten it with torque 10-12 N.m
- Strip the PV cable insulation
6 mm
Fastening head
Cable size: 10 AWG
Fastening head
(Torque: 3-4 N·m)
Tighten the fastening head
+
+
PV 2
PV 4
-
-
Mounting the inverter on the wall
- Use the bracket as a template for marking the
position of holes with a level and marker.
- Lift up the inverter.
- Two methods are available
by four installers or lifting ring
Mounting the inverter on the stand
- Use a bracket as a template for marking the
position of the holes with a level and marker.
- Lift up the inverter.
- Two methods are available
by four installers or lifting right
- Select the appropriate OT terminal and 70~240
- use wire stripper to strip the insulation layer of the AC cable end.
-The stripped insulation layer shall be 2-3mm longer
than "D" part of OT terminal as shown below.
- Pull the heat-shrink tubing over AC cable.
- Insert the stripped section into OT terminal and crimp with crimping tool.
- Pull the heat-shrink tubing over the crimped section of OT terminal.
-Use hot air blower to shrink it so that they are in firm contact with OT terminal.
Positive terminal
-Un-install the screws on the cover to open the cover of the wiring box.
-Use utility knife to cut out the pagoda type protection ring in accordance with the whole cable size,
-Put the AC cable through the pagoda protection ring, and connect it to the AC terminals L1, L2, L3 and N in turn,
and tighten it with torque wrench (with the torque of 25-30 N·m).
-Re-install the cover of wiring box with the torque of 5~7 N·m.
Negative terminal
Separate PE cable
- Drill the four holes with a φ10 drill.
- Depth: at least 65 mm.
*Note: Screws used for installation on the wall are not in the accessory bag. Please prepare them in advance.
-Hang it onto the bracket
- Drill the four holes with a drill.
- Hang it onto the bracket
Grid connection
mm²
black, red and yellow and green copper cable
A
PE
B
Multi-corecable
- Hammer the M8x80 expansion screw
into four holes.
- Screw in the nut firmly with socket wrench.
Expansion screw
Bracket
Nut
- Fix it on the wall bracket with M8 bolts
- Screw in the M10x40 screw into holes.
- Tighten it firmly with corresponding
socket wrench.
Bracket
M10x40 screw
- Fix it on the stand with M8 bolts
L1 / L2 / L3 / N
L1
L2
L3
N
D+(2~3) mm
D
A≤260 mm
a≤45 mm
B≤150 mm
12.5≤b≤15 mm
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