SOFAR 1.1K~3KTL User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
4. Electrical Connections
Outlines of this chapter
This topic describes the SOFAR 1.1K~3KTL 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
For SOFAR 1.1K~1.6KTL,open-circuit voltage(Voc) of module arrays
connected in series must be ≤ 450V;For SOFAR 2.2K~3KTL, it must
be
≤
500V.
The power of PV grid-tied system which contain by several the
SOFAR1.1K~3KTL inverters must be < 3.68kw in Germany.
The connected PV modules must have an IEC 61730 Class A rating
Maximum output over current
protection
The decisive voltage class(DVC)
NOTE:The DVC is the voltage of a circuit which occurs continuously between any two