Inverter Safety - Goodwe ET Series User Manual

02 Safety Precaution

2.3 Inverter Safety

• The voltage and frequency at the connection point should meet the inverter grid
connection requirements.
• Additional protective devices like circuit breakers or fuses are recommended on the AC
side. Specification of the protective device should be at least 1.25 times the maximum AC
current.
• PE cable of the inverter must be connected firmly. The resistance between the neutral wire
and the earth cable is less than 10Ω.
• You are recommended to use copper cables as AC output cables. Contact the manufacturer
if you want to use other cables.
• When single overload protection occurs, the inverter can restart automatically; however,
the restarting time will be extended if it happens several times. For a faster restarting, try it
via app.
• Do not enable the BACK-UP function if the PV system is not configured with batteries.
Otherwise, the manufacturer shall not be liable for related risks.
• Do not apply mechanical load to the terminals, otherwise the terminals can be damaged.
• All labels and warning marks should be visible after the installation. Do not cover, scrawl,
or damage any label on the equipment.
• Warning labels on the inverter are as follows:
HIGH VOLTAGE HAZARD
Disconnect all incoming
power and turn off the
product before working on it.
Read through the user
manual before any
operations.
High-temperature hazard. Do
not touch the product under
operation to avoid being
burnt.
CE Mark
WARNING
DANGER
4
User Manual V1.1-2022-12-20
Delayed discharge. Wait
5 minutes after power off
until the components are
completely discharged.
Potential risks exist. Wear
proper Personnel Protective
Equipment before any
operations.
Grounding point.
Do not dispose of the
inverter as household waste.
Discard the product in
compliance with local laws
and regulations, or send it
back to the manufacturer.