JALpower NS SERIES Manual del usuario - Página 6

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Cable specification of NS 3.6~5kW & D-NS 3kW~5kW AC side please refer to Figure 3.4.1-6.
B
B
A
A
C
C
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
1000-NS/1500-NS/2000-NS/2500-NS
3000-NS/3000D-NS/3600-NS/3600D-NS
4200-NS/4200D-NS/5000-NS/5000D-NS
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.

3.4.2 DC Side Connection

(1)
Before connecting the PV strings, please ensure the plug connectors have the correct polarity. Incorrect polarity could permanently
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.
There are three types of DC connectors, SUNCLIX / MC4 and AMPHENOL H4 series. Please refer to Figure 3.4.2-1.
AMPHENOL系列
07
Grade Description
Value
10~12mm
A
O.D.
Conductor Material
2.5~4mm
B
Sectional Area
10mm around
C
Bare Wire Length
Figure 3.4.1-6
Recommended circuit breaker specifications
16A
25A
32A
MC4系列
SUNCLIX系列
Figure 3.4.2-1
DC Cable specification is showed as Figure 3.4.2-2.
2
Installation instruction of SUNCLIX please refer to Figure 3.4.2-3.
Installation instruction of MC4 and H4 Series please refer to Figure 3.4.2-4.
MC4 series
Special tools are used to stitching
Grade Description
A
B
C
Figure 3.4.2-2
Positive connector
N egative connector
Figure 3.4.2-3
Positive connector
Negative connector
AMPHENOL
series
Limit buckle can't
crimping the wire
Figure 3.4.2-4
Value
4~5mm
A
O.D.
Conductor Material
2
2.5~4mm
B
Sectional Area
7mm around
C
Bare Wire Length
Inverter
Inverter
08