5.
WIRING
Modules are supplied with cables and connectors to be used for system electrical connections.
It is not recommended to use modules with different configurations and electrical
characteristics in the same system.
To ensure proper system operation the correct cable connection polarity should be observed
when connecting the modules to each other or to a load, such as inverter, a battery etc. If
modules were not connected correctly, the bypass diode could be destroyed.
Every module has its own wire (cross-sectional area 4 mm²) and MC4 -EVO 2 connectors. Also,
every module has three Schottky bypass diodes (Type: TM3045-20; Max. peak reverse voltage:
45V, forward current: 20 A, Max function temperature range: -55°C /200°C). When choosing
the proper conductive material, these information must be taken into the consideration, also
it must be corresponded to TS EN 61730-1.
Modules can be connected in series to obtain a high operating voltage. The system voltage is
equal to the sum of the voltage of each module. Modules can also be connected in parallel to
obtain a high operating current. The system current is equal to the sum of the current of each
string of modules.
Each module has two standards 90°C sunlight resistant output cables each terminated with
plug & play connectors. The PV Wire cables are 12AWG in size. This cable is suitable for
applications where wiring is exposed to the direct sunlight. We require that all wiring and
electrical connections comply with the appropriate National Electrical Code.
For field connections, use at least 4mm2 copper wires insulated for a minimum of 90°C and
sunlight resistance with insulation designated as PV Wire.
Under normal conditions, a module is likely to experience conditions that produce more
current and/or voltage than reported at standard test conditions. The suggested fuse must be
used for overcurrent protection. Accordingly, the values of Isc and Voc marked on this module
should be multiplied by a factor of 1.25 when determining component voltage ratings,
conductor ampacities, fuse sizes, and size of controls connected to the PVoutput.
