Trienergia S.r.l.
Strada Pavesa, 13/A
Bondeno di Gonzaga
(MN) 46023
Italy
VAT No. 02470010204
+39 (0)376 595052
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Electrical installation
Wiring
The TRIxxxBC-xB photovoltaic modules can be connected in series or in parallel
according to the electric power to be obtained. Use photovoltaic modules of the
same type in combined connection or in any case verify the electrotechnical
compatibility of the modules belonging to the same string / independent input
of the inverter.
Series connection
Do not exceed the maximum system voltage. Photovoltaic modules can be
connected in series to achieve a higher output voltage. Series connection is
preferable if the systems have no shadings. The series connection has the
following advantages:
• photovoltaic modules can be assembled easily and quickly;
• higher voltages make cross-sections of smaller cables possible;
• the higher voltages result in smaller currents and therefore lower power
losses.
Parallel connection
PV modules can be connected in parallel to achieve a higher output current.
Each string, or photovoltaic module in series, shall be fused before being
combined with other strings. For this purpose, the TRIxxxBC-xB modules are
equipped with bypass diodes located in the junction box. Comply with the
applicable regional and local regulations regarding fuse requirements and
limitations in the maximum number of PV modules for parallel connection. The
maximum number of photovoltaic modules for parallel connection without
additional precautions, such as fuses or blocking diodes, is one string of
modules. The number of strings is not limited if adequate precautions have been
taken to block the reverse current, such as fuses to protect the photovoltaic
module and the cable against overcurrent or blocking diodes for uneven string
voltage.
