SOFAR 7.5KTLM User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
4. Electrical Connections
Outlines of this chapter
This topic describes the SOFAR 7.5KTLM inverter electrical connections.
Read this part carefully before connecting cables.
NOTE: Before performing electrical connections, ensure that the DC switch is
OFF. Since the stored electrical charge remains in a capacitor after the DC switch is
turned OFF. So it’s necessary to wait for at least 5 minutes for the capacitor to be
electrically discharged.
Installation and maintenance of inverter, must be operated by
professional electrical engineer.
PV modules generate electric energy when exposed to sunlight and
can create an electrical shock hazard. Therefore, before connecting DC
input power cable, cover PV modules using opaque clot
In Germany, the PV array maximum voltage must be ≤ 600V, max
output of single inverter is 4.6KVA and max output of PV system is
13.8KVA.
SOFAR 7.5KTLM has 2 MPPT trackers, all PV modules connected
to the same MPPT should have similar rated electrical characteristics
(including Isc, Voc, Im, Vm, Pm and temperature coefficients), have the
same number of series connected PV modules and be all in the same
orientation (azimuth and tilt angle).
The connected PV modules must have an IEC 61730 Class A rating
Maximum output overcurrent
protection
The decisive voltage class(DVC)
NOTE:The DVC is the voltage of a circuit which occurs continuously
between any two live part in the worst-case rated operating condition when used as
intended.
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