Hoymiles HY3 Series, User Manual

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2. Safety
4
MANUAL-HY3-EN-V1.00
User Manual

The Inverter has a transformerless design on PV side. Either positive or negative terminals of
PV panels should not be grounded.

The frames of PV panels should be grounded for safety reasons.

Do not open the inverter cover or change any components without authorization, otherwise
the warranty commitment for the inverter will be invalid.

Appropriate methods must be adopted to protect inverter from electrostatic discharge; any
damage caused by ESD is not warranted by the manufacturer.
! CAUTION
NOTICE