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11
PV system connection diagramme – Two panels seriers MPPT
STEP 4
Grounding
Negative system grounding is recommended
The ground wire shall be bare copper wire with no
insulation sleeve. Wire cable with cross sectional
area of 4mm2 to 6mm2 is recommended and
ground clamp is recommended (See picture)
STEP 5
Wiring and connection
Use 4mm or 6mm cable depending on distance of panels from the MPPT. 4mm for up to 20m.
For longer distances use 6mm Cable
Ensure that the correct connecters are used (At least 40 A)
PV System Installers Guide
______________
Installation of the PV panels
250W PV
panel
MPPT +
(Plug in using
supplied cables)
MPPT -
(Plug in using
supplied cables)
250W PV
panel
–
+
+
–