15
16
Cable specifications refer to the following table:
PV
Inverter
MAC 30KTL3-X LV
10-35
25-50
16
25
MAC 40KTL3-X LV
25-35
35-50
30
35
MAC 50-60KTL3-X LV
25-35
35-50
35
50
MAC 50KTL3-X MV
25-35
35-50
30
35
MAC 60-70KTL3-X MV
25-35
35-50
35
50
MAC 15KTL3-XL
10-35
35-50
16
25
MAC 20-25KTL3-XL
25-35
35-50
30
35
MAC 30-36KTL3-XL
25-35
35-50
35
50
Notice:
The cable must be unbroken.
50
AC terminal wiring steps:
A. The following figure shows the AC terminal on the inverter. L1, L2, and L3 are three
fire channels, and N is a nature channel.
Note:
The screws are matched with M8 screws.
B. Determine the stripping length according to the specifications of the crimping
terminal (recommended 16-18mm), crimp the wire and terminal with the crimping
pliers, then pass the cable through the protective casing, lock it on the corresponding
AC terminal, and tighten the terminals Screw.
Figure 6.1
Figure 6.2
Figure 6.3
C. Connect the MP cable of the AC terminal with the matching M4 screw. After the
RS485 is connected, lock the protective casing on the inverter frame.
D.Lock the protective casing on the inverter frame and block the waterproof joint with
fireproof mud to prevent water ingress
Notice:Waterproof joints must be blocked with fireproof mud to prevent water
ingress.
●
Before electrical connection, please ensure the inverter DC switch is at
”OFF” also disconnect AC switch, otherwise the high voltage from inverter
may cause life risk.
●
Only trained authorized electrical technician can do the electric connection
also please follow the connection procedures in this manual along with local
country's regulations.
●
High voltage may cause electric shocks and serious injury please do not
touch the inverter.
●
Please do not store inverter in area with flammable and explosive material.
●
Each string's maximum open circuit voltage cannot exceed 1100Vdc, otherwise it
could lead to fire or damage the inverter.
●
If the inverter was damaged by higher maximum open circuit voltage (higher than
1100Vdc) product warranty will be forfeited and Growatt will not take any
responsibility.
。
Notice: The sunlight will generate voltage on the solar panels, after serial connection,
the high voltage may injure personnel, so before connect DC input cable you need cover
solar panels with light-tight materials and make sure the inverter DC switch is at ”OFF”
status, otherwise high voltage may injure personnel.
6
.
2
DC Side Connection
Copper wire
Copper wire
Aluminum
wire
Aluminum
wire
Cross-sectional
area(mm
)
2
Recommended
value(mm
)
2
PC
DANGER
WARNING
