JALpower D-NS SERIES User Manual - page 6
Figure
3.4.1-6
A
B
C
Cable specification of NS 3.6~5kW & D-NS 3kW~5kW AC side please refer to Figure 3.4.1-6.
A
B
C
Grade
Description
A
O
.
D
.
B
C
Bare Wire Length
Conductor Material
Sectional Area
Value
10~12mm
2
2.5~4mm
10mm around
08
07
Grade
Description
A
O
.
D
.
B
C
Bare Wire Length
Conductor Material
Sectional Area
Value
4~5mm
2
2.5~4mm
7mm around
DC Cable specification is showed as Figure 3.4.2-2.
Figure
3.4.2-2
A
B
C
Installation instruction of MC4 and H4 Series please refer to Figure 3.4.2-4.
Installation instruction of SUNCLIX please refer to Figure 3.4.2-3.
Positive connector
N
egative connector
Figure
3.4.2-3
Inverter
AC circuit breaker and leakage current protection device
In order to ensure that the inverter can be safe and reliable to disconnect from the power grid, please install an
independent two pole circuit breaker to protect the inverter.
Inverter model
Recommended circuit breaker specifications
1000-NS/1500-NS/2000-NS/2500-NS
3000-NS/3000D-NS/3600-NS/3600D-NS
4200-NS/4200D-NS/5000-NS/5000D-NS
16A
25A
32A
Note: Multiple inverters are not allowed to share a circuit breaker. Leakage current protector is not allowed to connect
between the inverter and the circuit breaker.
The integrated leakage current detection device of the inverter can detect external leakage current in real time. When the
detected leakage current exceeds the limit value, inverter will quickly disconnect with the grid. If the leakage current
protection device is installed externally, the action current should be 300mA or higher.
Figure
3.4.2-4
Negative connector
Positive connector
Inverter
Special tools are used to stitching
MC4 series
AMPHENOL
series
Limit buckle can't
crimping the wire
3.4.2 DC Side Connection
(
1
)
damage the unit.
(
2
)
The open circuit voltage of the PV strings cannot exceed the maximum input voltage of the inverter.
(
3
)
Only DC connectors provided by us are permitted to use.
(
4
)
The positive and negative pole is forbid to connect PE wire (Ground wire), otherwise, it will damage the unit.
(
5
)
Don't connect positive or negative pole of PV string to PE wire. Otherwise, it will cause damage to inverter.
Before connecting the PV strings, please ensure the plug connectors have the correct polarity. Incorrect polarity could permanently
There are three types of DC connectors, SUNCLIX / MC4 and AMPHENOL H4 series. Please refer to Figure 3.4.2-1.
SUNCLIX
系列
MC4
系列
Figure
3.4.2-1
AMPHENOL
系列