Sofar solar 3.3-12KTL-X - 4 Electrical Connections; Electrical Connection; Grounding Connection (PE); Figure 4-1 Cable Connection Flowchart

SOFAR 3.3K~12KTL-X User manual
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© Shenzhen SOFARSOLAR Co ., Ltd.
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4. Electrical Connections
4.1. Electrical connection
Figure 4-1 Cable connection flowchart
4.2. Grounding Connection (PE)
Connect the inverter to the grounding electrode using ground cable
This inverter is transformerless, Requires both the positive and the
negative pole of the PV array to be not grounded, Otherwise it will
cause inverter failure, In the PV power generation system, all non
current carrying metal parts(such as: Bracket, Junction box shell,
inverter shell) should be connected to earth.
Attention
We recommend the earthing cable to be 2.5mm² or greater and to be
coloured yellow-green.
Procedure:
Step 1: Remove the insulation layer with an appropriate length using a wire
stripper shown as Figure 4-2.
Figure 4-2 Grounding connection instruction (1)
Note：the length of L2 should 2~3mm higher than L1