Sungrow SH8.0RS User Manual page 76

6 Electrical Connection
Inverter Model
SH8.0/10RS
Testing to AS/NNZS 4777.2:2020 Section for multiple phase combinations has not
been conducted.
AC circuit breakers should be installed on the output side of the inverter and the
grid side to ensure safe disconnection from the grid.
• Determine whether an AC circuit breaker with greater overcurrent capacity is re-
quired based on actual conditions.
• Do not connect any local load between the inverter and the AC circuit breaker.
• Do not connect any local load between the inverter and the AC circuit breaker
except for the tracking axis.
• Multiple inverters cannot share one AC circuit breaker.
Residual Current Monitoring Device
With an integrated universal current-sensitive residual current monitoring unit included, the
inverter will disconnect immediately from the mains power once a fault current with a value
exceeding the limit is detected.
However if an external residual current device (RCD) is mandatory, the switch must be trig-
gered at a residual current of 300 mA (recommended), or it can be set to other values ac-
cording to local regulations. For example in Australia, the inverter can use an additional 30
mA(type A)RCD in installations.
However if an external residual current device (RCD) (type A is recommended) is mandatory,
the switch must be triggered at a residual current of 300 mA (recommended). RCD of other
specifications can also be used according to local standard.
In Australia, a RCD is not required according to the local standard AS3000-2018 when either
of the following installation methods is adopted if the PV array capacitance to ground is large
(such as a tin roof):
• Use heavy duty conduits (such as metal bushing) when run PV and AC cables through
Cavity walls.
• Route the PV and AC cables through pipes (PVC or metal tubing), lay the cables and in-
stall them.
66
Recommended Specifica-
tion (back-up)
32 A
User Manual
Recommended Specifica-
tion (on-grid)
≤ 63 A