Grid Connection - Sungrow SG2K-S Manual De Usuario Rápido

3 Electrical Connection
that the grounding resistance should be less than 10 Ohm.
Correct grounding connection of the second PE terminal and the AC
terminal is mandatory. Not properly connecting both PE will void any or
all product warranty.
The second PE conductor should be of the same cross-sectional area as the
original PE conductor in the AC connector. The cable and cable socket are not
included in the delivery scope.

3.3 Grid Connection

An independent two-pole AC circuit breaker for the inverter must be installed at
the output side for safe disconnection. The recommended specifications are as
follows:
Inverter Type
SG2K-S / SG3K-S / SG3K-D
SG4K-D / SG5K-D / SG6K-D
SG8K3-D
In PV systems with multiple inverters, protect each inverter with a
separate circuit breaker. This will prevent any residual voltage from
being present at the corresponding cable after disconnection.
AC Cable Requirements
The recommended specifications are shown in the following table
8
Item Description
A Screw (M4×10 mm)
B Spring washer
C Washer
D Cable socket
E Grounding cable
Specification
25 A
32 A
50 A
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