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6. Electrical Connection
6.1 Wiring Steps
Step1: Secondary Ground Connection
Lock crimped ground cables to ground holes with screw locks on the inverter case, and paint the
ground screws and ground terminals to improve anti-corrosion characteristics.
The conductor sectional area of each ground cable is 0.5~10 mm
2
(4~6 mm
2
is recommended).
Step 2: AC Side Wiring
• Check the grid voltage and compare with the permitted voltage range (refer to technical data).
• Disconnect the circuit-breaker of all the phases and secure against re-connection.
• Trim the cables.
Conductor Sectional Area (mm
2
)
L1,L2,L3, (N) Cables: 70~240; PE: 0.5~10
• Open the AC side wiring box with a 5mm internal hexagon wrench. Open the breaker and
prevent its accidental reclose.
• Unscrew the lock nut of the waterproof connector and take out multilayer sealing rings. Select
the sealing ring based on the cable outer diameter. Route the cable through the lock nut and
sealing ring.
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