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06 Electrical Connection User Manual V1.4-2022-08-30
6.2 Safety Precautions
NOTICE
• Wear personal protective equipment like safety shoes, safety gloves, and insulating gloves
during electrical connections.
• All electrical connections should be performed by qualied professionals.
• Cable colors in this document are for reference only. The cable specications shall meet local
laws and regulations.
DANGER
• Perform electrical connections in compliance with local laws and regulations. Including
operations, cables, and component specications.
• Disconnect the DC switch and the AC output switch of the inverter to power o the inverter
before any electrical connections. Do not work with power on. Otherwise, an electric shock
may occur.
• Tie the cables of the same type together, and place cables of dierent types apart. Do not
place the cables entangled or crossed.
• If there is too much tension on a wire, it may be poorly connected. Reserve the appropriate
length of wire before connection.
• Make sure that the cable conductor is in full contact with the terminal and the cable insulation
part is not crimped with the terminal when crimping the terminal. Otherwise, the inverter
may not be able to work properly, or the connection may be unreliable during working,
which may cause terminal block damage, etc.
6.3 Connecting the PE Cable
WARNING
• The PE cable connected to the enclosure of the inverter cannot replace the PE cable
connected to the AC output port. Make sure that both of the two PE cables are securely
connected.
• Make sure that all the grounding points on the enclosures are equipotential connected
when there are multiple inverters.
• To improve the corrosion resistance of the terminal, you are recommended to apply silica
gel or paint on the ground terminal after installing the PE cable.
• The PE cable should be prepared by the customer. Recommended specications:
• Type: single-core outdoor copper cable
• Conductor cross-sectional area: 4mm
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