SOFAR 1.1K~3.3KTL-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
If an external residual current device (RCD) is used, a device of type B should
be used, with a tripping current of 700mA.If multiple inverter connect to the
general residual current device (RCD) through their respective external AC
switches, the rated leakage action current of the general RCD should be greater
than or equal to the number of inverters multiplied by 700 mA.
Multi core copper wire
AC cable should be correctly sized to
ensure the power loss in AC cable is less
than 1% of the rated power. If the resistance
of the AC cable is too high, it will cause a
huge increase in the AC voltage, which may
lead to a disconnection of the inverter from
the electrical grid. The relationship between power loss in AC cable and wire length,
wire cross sectional area is shown in the following figure：
Figure 4-10 wire length, wire cross sectional area and wire power loss
Inverter is equipped with two types of IP66 AC connector (TypeⅠ connector or
TypeⅡ connector are randomly equipped with one), and the AC output cable needs
to be wired by the customer. The appearance of
AC connector
is shown in figure
4-11.
AC connector type:
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