least 4 mm² cable cross-section). The solar
modules correspond to application class A
and can therefore be operated in systems with
dangerous DC voltages (larger than 120 VDC in
accordance with IEC 61730). Solar modules in
this application class can be used in systems
with unrestricted access, the relevant regula
-
tions must be complied with. SOLARWATT solar
modules qualified within this application class
in accordance with IEC 61730 fulfill the re-
quirements of protection rating II with correct
electrical installation.
Module schematic, front view
Connection lines
String connector
Junction box with bypass diodes
Cell connector
Solar cells
Under normal installation conditions, a solar
module can deliver a higher current and/or
higher voltage than under standardized test
conditions. Consequently, the specified values
on the solar module for short circuit current ISC
should be multiplied by 1.25 and the open cir-
cuit voltage UOC should be multiplied by a fac-
tor of up to 1.25, based on the lowest expected
ambient temperature for the given installation
location, to determine the rated voltage values
of components, the rated current values of con-
ductors, the size of fuses and for dimensioning
control units connected to the solar modules.
Any type of soiling on the plug contacts befo-
re or after installation (dust, moisture, aerosols
containing salt, etc.) has a negative influence on
the system function over the intended service
period. For this reason it is necessary to pay
particular attention to cleanliness during ins
-
tallation. The use of lubricants is not permitted.
Always protect unplugged connectors against
soiling of any type during transport, storage,
and during installation, as the connectors only
satisfy the requirements for their protection ca-
tegory when plugged in. It is forbidden to open
the junction box or modify or remove the cable
or frame.
The cables must be laid so that mechanical
strain on the conductors and connections is ru
-
led out. Take into account the product-specific
length of the connection cable specified in the
relevant data sheets at www.solarwatt.com.
The plug contacts must not be connected or disconnected under load. Failure to comply
with this warning could result in DEATH!
WARNING
PAGE 26 | SUBJECT TO CHANGE | © 2017 SOLARWATT GMBH | AZ-TM-PMS-0673 | REV 012 | STATUS: 08/2017
