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4.3 System Grounding (Positive)
PM318B00/
PM318B00/
PM318B00/
PM318B00/PM318
PM318
PM318
PM318B01
B01
B01
B01
For optimal performance, BenQ Solar modules must only be used in configurations with
galvanically insulated inverters where the positive (+) polarity of the PV array is connected to
ground protected by a fuse.
In addition, the module frame should be grounded. Failure to comply with this requirement
Failure to comply with this requirement
Failure to comply with this requirement
Failure to comply with this requirement
will reduce the performance
will reduce the performance
will reduce the performance
will reduce the performance of the system and invalidate BenQ solar Limited Power
of the system and invalidate BenQ solar Limited Power
of the system and invalidate BenQ solar Limited Power
of the system and invalidate BenQ solar Limited Power
Warranty for PV Modules.
Warranty for PV Modules.
Warranty for PV Modules.
Warranty for PV Modules.
Grounding of the module frame can be achieved through use of clamps that penetrate the
anodization in conjunction with grounding of the mounting system or through direct
grounding of the frames by attaching a copper wire to a grounding hole of each module (bolt
size, M6 × 1.0 × 50).
4.4 System Grounding (Transformer less)
PM
PM
PM
PM096B00
096B00
096B00
096B00
Comply with the local regulations for earthing the modules and the PV array.
Grounding of the module frame can be achieved through use of clamps that penetrate the
anodization in conjunction with grounding of the mounting system or through direct
grounding of the frames by attaching a copper wire to a grounding hole of each module.
4.5 Limitation in Connection
IEC
IEC
IEC
IEC
The IEC 61730 certificate of these modules guarantees their insulation up to a DC voltage of
1000 V. (IEC 61730 Standard).
ET
ET
ET
ETL
LL
L
The UL 1703 certificate of these modules guarantees their insulation up to a DC voltage of
1000 V. (UL 1703 Standard).
Both standards apply to all module series described in this manual, however, a cable with a
suitable cross section must be used for conducting the sum of the currents as generated by
the modules. A series protection fuse of 15A is recommended for each string when module
strings are wired in parallel.
