Connecting The Ac Cable - Goodwe ET Series User Manual

User Manual V1.0-2022-08-30

6.6 Connecting the AC Cable

Do not connect loads between the inverter and the AC switch directly connected to the
inverter.
The residual current monitoring unit (RCMU) is integrated into the inverter to avoid the
residual current exceeds the limit.
The type A RCD can be connected to the inverter for protection according to the local laws and
regulations. Recommended specifications: ON-GRID RCD: 300mA; BACK-UP RCD: 30mA.
• Install one AC output circuit breaker for each inverter. Multiple inverters cannot share one
AC circuit breaker.
• An AC circuit breaker shall 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.
• Connect the AC cables to the corresponding terminals such as "L1", "L2", "L3", "N", and PE
correctly. Otherwise it will cause damage to the inverter.
• Ensure that the whole cable cores are inserted into the terminal holes. No part of the cable
core can be exposed.
• Ensure that the insulation board is inserted into the AC terminal tightly.
• Ensure that the cables are connected securely. Otherwise it will cause damage to the
inverter due to overheat during its operation.
WARNING
NOTICE
WARNING
35
06 Electrical Connection
BACK-UP
ON-GRID