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06 Electrical Connection
User Manual V1.6-2024-03-20
6.2 Safety Precaution
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 same type cables together, and place them separately from cables of dierent types.
Do not place the cables entangled or crossed.
• If the cable bears too much tension, the connection may be poor. Reserve a certain length of
the cable before connecting it to the inverter cable port.
• When crimping the terminals, ensure that the conductor part of the cable is in full contact with
the terminals. Do not crimp the cable jacket with the terminal. Otherwise the inverter may
not operate, or its terminal block getting damaged due to heating and other phenomenon
because of unreliable connection after operation.
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 equipotentially 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: 4-6mm
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