41
Step 3 Apply paint to the grounding terminal to ensure corrosion resistance.
The grounding screws have been anchored to the side of the inverter before deliv-
ery, and do not need to be prepared.
There are two grounding terminals. Use one of them to ground the inverter.
- - End
5.6 AC Cable Connection
5.6.1 AC Side Requirements
Only with the permission of the local grid department, the inverter can be con-
nected to the grid.
Before connecting the inverter to the grid, ensure the grid voltage and frequency comply with
requirements, for which, refer to "Technical Data". Otherwise, contact the electric power
company for help.
AC Circuit Breaker
An independent circuit breaker or fuse should be installed on the output side of the inverter
to ensure safe disconnection from the grid.
Inverter
Recommended Rated Voltage
Recommended Rated
Current
SG25CX-P2 400V 63 A
SG30CX-P2 400V 63 A
SG33CX-P2 400V 80 A
SG36CX-P2 400V 80 A
SG40CX-P2 400V 100 A
SG50CX-P2 400V 125 A
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.
• Multiple inverters cannot share one AC circuit breaker.
User Manual 5 Electrical Connection
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