Multiple Inverter Combinations; Pv Side Connection - SAJ H2 Series User Manual

Step 3: Secure all parts of the grid and backup connector tightly.
Figure 5.4
Screw the Connector
Step 4: During off grid operation time, PE line at the BACK-UP end will remain to be connected with
the PE line at the power grid end inside the inverter. (Only applicable to market in Australia)

5.2.1 Multiple Inverter Combinations

Inverter
1 Phase
Inverter
1 Phase
Inverter
1 Phase
25
A
Test Circuit
B
The inverter should not be installed in multiple phase
Connection
C
3 Phase combinations. If any such multiple inverter
N
combination is not tested，it should not be used or
external devices should be used in accordance with
the requirements of AS/NZS 4777.1
5.2.2 Earth Fault Alarm
This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an Earth Fault Alarm
occurs, the ring light will be lit up in red and error code <31> will be displayed on LED panel 1 until the error
being solved and inverter functioning properly.
Note：The inverter cannot be used with functionally earthed PV Arrays.
5.2.3 External AC Circuit Breaker and Residual Current Device
Please install a circuit breaker to ensure the inverter is able to disconnect from grid safely. The integrated
leakage current detector of inverter is able to detect the real time external current leakage. When a leakage
current detected exceeds the limitation, the inverter will be disconnected from grid quickly.
The inverter does not require an external residual current device, as it has integrated with a RCMU. If local
regulations require the application of external residual current device, either type A or type B RCD is
compatible with the inverter. The action current of external residual current device should be 300mA.
Inverter type
H2-5~10K-S3,H2-10K-S3-A
Notice: Do not connect multiple inverters to one AC circuit breaker.
Table 5.2
Recommended circuit breaker specification

5.3 PV Side Connection

· Make sure the PV array is well insulated to ground before connecting it to the inverter.
Conductor cross-sectional area of cables（mm²）
Scope
4.0~6.0
Table5.3
Recommended specifications of DC cable
Recommended breaker specification
100A
WARNING
Conductor material
Recommended value
Outdoor multi-core copper wire cable, complying
with 600Vdc
4.0
H2 Series
26