Connecting The Ac Output Cable - Goodwe HT Series User Manual

User Manual V1.1-2023-12-14

6.4 Connecting the AC Output Cable

Do not connect loads between the inverter and the AC switch directly connected to it.
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
GW250K-HT, GW250KN-HT, GW225K-HT, GW225KN-HT
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:
Inverter model
GW250K-HT, GW250KN-HT, GW225K-HT, GW225KN-HT
Install one AC circuit breaker for each inverter. Multiple inverters cannot share one AC circuit
breaker.
• Pay attention to the silkscreens L1, L2, L3, PE on the AC terminal. Connect the AC cables
to the corresponding terminals. The inverter may be damaged if the cables are connected
inappropriately.
• The PE point in the maintenance compartment is used for connecting to the PE cable
included in the multi-core AC power cable.
• Make sure that the whole cable cores are inserted into the AC terminal holes. No part of
the cable core can be exposed.
• Make sure that the cables are connected securely. Otherwise, the terminal may be too hot
to damage the inverter when the inverter is working.
• The AC terminals can be connected in three-phase four-wire or three-phase five-wire. The
actual wiring method may be different. The figure below takes the three-phase five-wire as
an example.
• The waterproof rubber ring for the AC outlet hole is delivered with the inverter, which is
located in the AC junction box of the inverter. Please select the rubber ring types according
to the actual using cables' specification.
• Reserve certain length of PE cable. Make ensure that the PE cable is the last one to bear the
stress when the AC output cable is under tension.
• M12 ground OT terminals and M12 AC OT terminals should be prepared by customers.
Step 1 Make the AC output cable.
Step 2 Dismantle the AC cover and take out the rubber ring.
Step 3 Cut the rubber ring to right size.
Step 4 Crimp the AC cable OT terminal
Step 5 Connect the AC output cables and install the cover.
WARNING
Recommended RCD specifications
2500mA or higher
AC circuit breaker
250A
NOTICE
WARNING
27
06 Electrical Connection