10
3
MC
MC
2.4.2 PV Wiring Connection
Before connecting PV panels/strings to inverter, please make sure requirements are followed as
below
:
• The total short-circuit current of a PV string must not exceed the inverter's max DC current.
• The minimum impedance to earth of the PV module shall be greater than R. R=Max.Input
Voltage (V)/30mA, i.e. R=1100V/30mA=36.7KΩ or R=1000V/30mA=33.4KΩ).
• The PV string must not be connected to the earth/grounding conductor.
• Use the right PV plugs in the accessory box. (BAT plugs are similar to PV plugs. Please check before
using them.)
Note: There are MC4 plugs in the accessory box. The connection details are shown below.
Prepare the PV cables and PV plugs.
Screw the cap on and plug it into the inverter side.
Connect the PV cable to the PV connectors.
Note:
1. Please use the PV plugs and connectors from the
accessory box.
2. The PV cable should be a standard 4–6mm
2
.
Note: There will be a clicking sound if the connectors are inserted correctly into the PV plugs.
Note:
1. Crimp the PV cable tightly onto the connectors.
2. There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
4-6mm
2
7mm
4-6mm
2
7mm
1
The polarity of the PV strings must not be connected in a reverse manner. Otherwise, the
inverter could be damaged.
MC4 Series
2
