.19.
.18.
5.
Installation
5.
Installation
5.3.3 Connect grid side of inverter
For the AC connection, 10-35mm
²
cable is required to be used.
Please make sure the resistance of cable is lower than 1.5ohm.
22~32
27
Cable specification
Copper-cored cable
Cable outer diameter
(mm
)
Traverse cross
sectional area
(
mm
)
²
R
ange
Recommended
R
ange
Recommended
NOTE:
For reliable connection, recommend customer select corresponding Euro
type connectors based on wiring specification to connect the terminal.
1. Strip the end of AC cable insulating jacket about 80mm then strip the end of each wire.
(as shown in figure 5.23)
The steps to assemble the AC grid terminals are listed as follows:
Figure 5.23 Strip AC cable
NOTE:
S2 (insulation stripping length) should be as long as S1
(AC terminal cable compression area).
10~35
25
3. Leave the AC breaker disconnected to ensure it does not close unexpectedly.
4. Remove the 4 screws on the inverter junction box and remove the junction box
cover .
5. Insert the cable through the nut, sheath, and AC terminal cover. Connect the cable to
the AC terminal block in turn, using a socket wrench.
Tighten the screws on the terminal block.
The torque is 3~4Nm (as shown in Figure 5.24).
Figure 5.24 wiring
2. Strip the insulation of the wire past the cable crimping area of the OT terminal,
then use a hydraulic crimp tool to crimp the terminal. The crimped portion of the terminal
must be
insulated with heat shrinkable tube or insulating tape.
S2
PE
N
L
｝
S1
80
MM
