7 Electrical Connection
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/
32
Components of AC connector
（
7-9KW
）
:
The AC connector is made of four components: pressure nut, sealing ring, threaded sleeve, plug.
Pressure Nut Sealing Ring Threaded Sleeve Plug (Metal pins and shell)
FIG. 7-2 Components of Connector
Wiring:
1) Strip the cable’s jacket, and then adjust the relative length of L, N and PE cables, to make the length of PE cable is at
least 5mm longer than L and N ones, as per FIG. 7-3.
30.0
25.0
PE
N
L
50.0
45.0
PE
N
L
FIG. 7-3 Adjust the Cable Length
2
）
When using flexible cables, the conductor must be connected with suitable core end ferrules according to DIN
46228-4, as per FIG. 7-4.
8.0
L
N
PE
FIG. 7-4 Crimp the Three-core’s Ferrule
Insert the L, N, and PE conductors into the corresponding pins of the plug (as per FIG. 7-5), then tighten the fastening
screws by screwdriver to fix conductors firmly.
8/9KW (Torque 2N.m
）
:
7KW (Torque 1.4N.m
）
:
FIG. 7-5 AC Terminal Positions