20
21
Figure 4-15
Allen Key
Figure 4-16
2) According to the table above, select an appropriate copper cable, peel the insulation sleeve
of AC cable off for 50mm, and peel off the end of 3L /PE / N wires for 8mm, as shown in Figure
4-14:
3) Insert the stripped end of the five wires into the appropriate hole of the terminal head by
following the rules: yellow green wire to PE port, red or brown fire wires to L ports (no requests
for the sequence of three fire wires), and blue or black wire to the N port. Please try to pull out
the cable to make sure it’s well connected. As shown in Figure 4-15:
4) According to the arrow direction to push the threaded sleeve to make it connected with the
AC terminal head and then rotate the cable gland clockwise to lock it. As shown in figure 4-16:
Figure 4-17 Connect the AC connector
Do not connect the N-wire as a protective ground wire to the inverter casing.
Otherwise, it may cause electric shock.
Good grounding is good for resisting surge voltage shock and improving EMI
performance. Inverters must be well-grounded.
For a system with only one inverter, just ground the PE cable.
For a multi-inverter system, all inverters PE wire need to be connected to the
same grounding copper bar to ensure equipotential bonding.
5) Connect the AC connector to the inverter AC terminal, and rotate the AC connector buckle
clockwise until its tight enough. As shown in figure 4-17:
4.3.3 External ground connection
Ground terminal connection steps:
1) The external grounding terminal is located in the lower right side of the inverter.
2) Fix the grounding terminal to the PE wire with a proper tool and lock the grounding terminal
to the grounding hole in the lower right side of the inverter. As shown in Figure 4-18:
3) The cross-setional area of the external grounding cable is 4mm².
Danger
Attention
Figure 4-14
Strip Length:8mm
50mm
Wire Diameter:13-18mm
Connect the inverter and ground bar through PE wire to achieve the purpose of grounding
protection.