User Manual
23
Grounding holes
A riveted screw should be installed on the grounding hole inside the combiner
box. The riveted screw is M4. The location is as shown in the figure below.
M4
M4
It can be installed in the corresponding riveted screw hole according to the
actual needs.
Table 5-3
Comparison table of grounding hole and wiring requirements
Pressure riveting screw
specifications
M4
Recommended cable specifications
16mm
2
Stripping length L
15mm
Tightening torque
3N.m
Wiring steps
Step 1
Loosen the lock nut of the grounding waterproof terminal
“
”of the
combiner box.
Step 2
Pass yellow and green wires through the waterproof terminal
“
” to the
wiring terminal inside the combiner box, reserve an appropriate length
margin.
Step 3
Use a wire stripper to strip the protective layer and insulation layer of the
cable to expose the copper core of the wire. For the specific stripping
length, refer to the“Table 5-3 Comparison table of grounding hole and
wiring requirements
Step 4
Crimp the OT terminal.
L=D+5
D
3
2
1
2
1
