Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
12
This manual
applies only on Flisom’s eFlex Series modules
3.6
Electrical
For elevated areas irradiation can be higher than at STC. Therefore, multiply I
SC
- and V
OC
- values with
a factor of 1.25 for the electrical layout of cables, fuses and converters (worst case scenario). For a
serial connection the voltage of a single module is multiplied by the number of modules to calculate
the system voltage. Make sure that you are always within the limits of the maximum system voltage.
Use an adequate device for overcurrent protection (fuse, blocking diode). Maximum Isc multiplied by a
factor of 1.56 to protect a string in parallel configuration.
The maximum number of modules connectable in series is calculated by adding Voc of each single
module multiplied by 1.25 up to the maximum system voltage which you can find on the label.
Do not use PV modules of different power classes or configurations in the same PV system. Flisom
eFlex Series modules use PV4-S connectors. Only use these connectors or compatible connector
types which are authorised from both producers. Use solar cables for outside use (ø 2.5 to 4mm² and
min. 90 °C). Check that no cable is under tensile stress or bended over a sharp edge.
Secure all electrical connections and use stress relief appliances. Do not go below the minimum
bending radius of the cables. Use cable guides to prevent connectors and cables from lying in excess
water, snow or dirt.
The junction box rating is IP65 and IP67 and is not to be opened. The diode cannot be replaced.
For electrical system installation check all relevant codes, guidelines and regulations. The system
connection has to be done by a qualified installer.
3.6.1
Grounding modules
Flisom eFlex modules do not require grounding of the modules. For system grounding check all
relevant codes, guidelines and regulations.
3.6.2
Inverter
Inverters convert direct current into alternating current. Inverters of the latest generation, with MPPT
(Maximum Power Point Tracker), optimize the production, even in situations of weather changes or
variable sunlight.
Suitable inverter configurations are:
Central inverters
String inverters
Multi-String inverters
Inverters on single module level
Not all inverter without transformers can be used. Please contact Flisom for further information.
