21
22
If the inverter is not equipped with a DC switch but this is mandatory in the
country of installation, install an external DC switch.
The following limit values at the DC input of the inverter must not be
exceeded:
It is suggestiong that connecting eleven PV modules that have an IEC
61730 Class A rating in series as one PV input.
6.3
Connecting the second protective conductor
In some installation countries, a second protective conductor is required to prevent a touch
current in the event of a malfunction in the original protective conductor.For installation
countries falling within the scope of validity of the IEC standard 62109, you must install the
protective conductor on the AC terminal with a conductor cross-section of at least 10
mm²Cu.Or Install a second protective conductor on the earth terminal with the same cross-
section as the original protective conductor on the AC terminal. This prevents touch current if
the original protective conductor fails.
6.4
Connecting the PV Array
6.4.1
Conditions for PV Array
The MIN TL-XH single-phase inverter has 2 independent PV input : PV1 & PV2 .
Notice that the connectors are in paired (male and female connectors). The connectors for PV
arrays and inverters are Helios H4-R/VP-D4 connectors;
Types
Max current PV1
Max current PV2
Max voltage
2500-3000 TL-XH
13.5A
13.5A
500V
3600-6000 TL-XH
13.5A
13.5A
550V
6.4.2
Connecting the PV Array
DANGER
Danger to life due to lethal voltages!
Before connecting the PV array, ensure that the DC switch and AC
breaker are disconnect from the inverter. NEVER connect or
disconnect the PV connectors under load.
Make sure the maximum open circuit voltage(Voc) of each PV string is
less than the maximum input voltage of the inverter.
Check the design of the PV plant. The Max. open circuit voltage,
which can occur at solar panels temperature of -10
℃
, must not
exceed the Max. input voltage of the inverter.
WARNING
Improper operation during the wiring process can cause fatal injury to
operator or unrecoverable damage to the inverter. Only qualified personnel
can perform the wiring work.
Please don’t connect PV array positive or negative pole to the ground, it
could cause serious damages to the inverter
Check the connection cables of the PV modules for correct polarity and
make sure that the maximum input voltage of the inverter is not exceeded.
Connection of PV terminal
4~6mm²
Cable
Positive metal
terminal
Positive connector
4~6mm²
Cable
Negative metal
terminal
Negative connector
