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Before operating the product, please check and ensure that tools to be used have
been maintained regularly.
1.3 Electrical Connection Safety
Before electrical connections, please make sure that the optimizer is not damaged.
Otherwise, it may cause danger!
Before electrical connections, please make sure that all switches connected to the
optimizer are set to "OFF". Otherwise, electric shock may occur!
The optimizer does not support hot plugging. Do not plug in and out the optimizer
with power on. Otherwise, the optimizer may be damaged!
The PV string will generate lethal high voltage when exposed to sunlight.
• Operators must wear proper personal protective equipment during electrical
connections.
• Must ensure that cables are voltage-free with a measuring instrument before
touching DC cables.
• Respect all safety instructions listed in relevant documents about PV strings.
Lethal voltages may be present inside the optimizer!
• Be sure to use special insulation tools during cable connections.
• Note and observe the warning labels on the optimizer, and perform operations
strictly following the safety instructions.
• Respect all safety precautions listed in this manual and other pertinent
documents.
Damage to the product caused by incorrect wiring is not covered by the warranty.
• Electrical connection must be performed by professionals.
• All cables used in the PV generation system must be firmly attached, properly
insulated, and adequately dimensioned.
1 Safety Instructions User Manual
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