SOFAR 3.3~12KTLX-G3
User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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4.2. Grounding Connection (PE)
Connect the inverter to the grounding electrode using ground cable
SOFAR 3.3~12KTLX-G3 is a transformerless inverter which
requires the positive pole and negative pole of the PV array to be
floating with respect to PE. Otherwise, it will cause inverter failure.
In the PV system, all non-current-carrying metal parts (such as
mounting frame, combiner box enclosure, etc.) should be connected
to earth.
Note
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
Step 2
: Insert the exposed core wires into the OT terminal and crimp them by
using a crimping tool, as shown as figure 5.3. Recommend using OT terminal:
OT-M6, Cable:
≥
6mm
2
Figure 4- 3 Grounding connection instruction (2)
Note 1:
L3 is the length between the insulation layer of the ground cable and
crimped part. L4 is the distance between the crimped part and core wires
protruding from the crimped part.
