2.5 Electrical Connection Warnings
Grounding the PV modules：The MIN TL-XH is a transformerless
inverter. That is why it has no galvanic separation. Do not ground the
DC circuits of the PV modules connected to the MIN TL-XH. Only
ground the mounting frame of the PV modules.If you connect
grounded PV modules to the MIN TL-XH, the error message "PV ISO
Low".
Comply with the local requirements for grounding the PV modules and
the PV generator. GROWATT recommends connecting the generator
frame and other electrically conductive surfaces in a manner which
ensures continuous conduction with ground in order to have optimal
protection of the system and personnel.
The components in the inverter are live. Touching live components can result
in serious injury or death.
Do not open the inverter except the wire box by qualified persons.
Electrical installation, repairs and conversions may only be carried out by
electrically qualified persons.
Do not touch damaged inverters.
Danger to life due to high voltages in the inverter
There is residual voltage in the inverter. The inverter takes 20 minutes to
discharge.
Persons with limited physical or mental abilities may only work with the
Growatt inverter following proper instruction and under constant supervision.
Children are forbidden to play with the Growatt inverter. Must keep the
Growatt inverter away from children.
Make all electrical connections (e.g. conductor termination, fuses, PE
connection, etc.) in accordance with prevailing regulations. When working
with the inverter powered on, adhere to all prevailing safety regulations to
minimize risk of accidents.
Systems with inverters typically require additional control (e.g., switches,
disconnects) or protective devices (e.g., fusing circuit breakers) depending
upon the prevailing safety rules.
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