User Manual V1.3-2023-01-31 06 Electrical Connection
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An AC circuit breaker should be installed on the AC side to make sure that the inverter can safety
disconnect the grid when an exception happens. Select the appropriate AC circuit breaker in
compliance with local laws and regulations. Recommended AC circuit breakers:
NOTICE
Install one AC circuit breaker for each inverter. Multiple inverters cannot share one AC circuit
breaker.
Select and Install RCD depending on local laws and regulations. Type A RCDs (Residual Current
Monitoring Device) can be connected to the outside of the inverter for protection when the DC
component of the leakage current exceeds the limit value. The following RCDs are for reference:
Inverter model Recommended nominal current of AC breaker
GW12KLV-MT >40A
GW15KLV-MT >50A
GW20KLV-MT >68A
GW25K-MT >50A
GW29.9K-MT >55A
GW30K-MT >60A
GW36K-MT >66A
GW30KLS-MT >96A
GW35KLS-MT >116A
GW50KS-MT, GW50KS-MT-EU >96A
GW60KS-MT, GW60KS-MT-EU >116A
Inverter model Recommended RCD specications
GW12KLV-MT, GW15KLV-MT, GW20KLV-MT,
GW25K-MT, GW29.9K-MT, GW30K-MT, GW36K-MT,
GW30KLS-MT, GW35KLS-MT
400mA or higher
GW50KS-MT, GW60KS-MT, GW50KS-MT-EU and
GW60KS-MT-EU
600mA or higher
6.4 Connecting the AC Output Cable
WARNING
Do not connect loads between the inverter and the AC switch directly connected to it.
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