Goodwe SDT Series User Manual page 32

06 Electrical Connection
Install one AC circuit breaker for each inverter. Multiple inverters cannot share one AC circuit
breaker.
An AC circuit breaker should be installed on the AC side to make sure that the inverter can safely
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
GW8000-SDT-30/GW10K-SDT-30/GW10K-SDT-EU30
GW12K-SDT-30/GW15K-SDT-30/GW17K-SDT-30
GW12KLV-SDT-C30/GW20K-SDT-30
GW23K-SDT-C30/GW25K-SDT-C30/GW25K-SDT-P30
GW17KLV-SDT-C30/GW27K-SDT-C30/GW27K-SDT-P30/GW30K-
SDT-C30
• 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.
• Use the copper-to-aluminum adapter terminals when using alluminium cable wiring.
OT Terminal Requirement
NOTICE
WARNING
copper-to-aluminum adapter terminal
User Manual V1.3-2024-01-25
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AC circuit breaker
20 A
32 A
40 A
50 A
60 A