7
One module has a pair of male and female
waterproof cables and connectors for electrical
connection, that are pre-wired inside the
junction box. The cables have obvious marks of
the positive and the negative.
For a series electrical connection, connect
positive (+) connector of one module to the
negative (-) connector of the following module.
For a parallel electrical connection, connect
positive (+) connector of one module to the
positive (+) connector of the following module.
Figure 5
(1) serial -connection of modules
(2) parallel- connection of modules
For parallel connection, additional branch
connectors are needed. The module employs
connectors manufactured by Multi-Contact USA
with model type PV-KBT4/6II-UR (female) and
PV-KST4/6II-UR (male) or connectors
manufactured by other manufactories which
also can be matched to the connector of
Multi-Contact, check the connectors in the
module and choose branch connectors that
match the connectors of the modules.
Use 12 AWG or 14 AWG PV wire or USE-2 wire
for interconnection. The area of the cable
mated with the connector is recommended to
be 4mm², temperature range:-40
℃
to 90
℃
.
When connecting the modules to load or on
inverter, additional wires with pre-attached
connectors may be used. The wire shall be PV
wire or USE-2 wire, the connectors shall be
manufactured by Multi-Contact USA with model
type PV-KBT4/6II-UR (female) and
PV-KST4/6II-UR (male) or shall be
manufactured by other manufactories which
also can be matched to the connector of
Multi-Contact. Connect this wire to the module
by connectors, then the other end of the wire is
connecting to inverter or load by field wiring
method specified by inverter/ load
manufacturers.
7 MAINTENANCES
It is recommended to check the modules once
per year. Under most conditions, normal rainfall
is sufficient to keep the module glass clean. If
dirt build-up becomes excessive, clean the
glass with a soft cloth using mild detergent and
water. Modules that are mounted, flat (0°tilt
angle) should be cleaned more often, as they
will not self-clean as effectively as modules
mounted at a 15°tilt or greater.
It is recommended to perform periodic
inspection of the modules for damage to glass,
back skin, frame, and support structure. Check
electrical connections for loose connections
and corrosion. Check if mounting support
structure and modules are loose. Check
connections of cables, connectors, and
grounding.
All the modules have to pass comprehensive in
spection before delivery, which ensures that all
the modules can meet the requirements of the
