Connecting The Ac Output Cable - Goodwe HT Series User Manual

06 Electrical Connection

6.4 Connecting the AC Output Cable

Do not connect loads between the inverter and the AC switch directly connected to it.
Where an external RCD (Residual Current Device) is required in addition to the built-in RCMU
(Residual Current Monitoring Unit), and a type A RCD must be used to avoid tripping.
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, N, PE on the AC terminal. Connect the AC cables
to the corresponding terminals. The inverter may be damaged if the cables are connected
inappropriately.
• 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.
• 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.
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
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User Manual V1.0-2022-05-04