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8
CONNECTING SOLAR PANELS IN PARALLEL
The Samlex Expansion kits maybe used to
increase the solar energy available to charge
your batteries. Each Samlex Expansion kit
comes with a solar panel, mounting hardware
for the solar panel and a set of MC male and
female branch connectors to parallel the solar
panel to your existing system.
1. If the existing panel is already connected
to the mating connector on the pre-
assembled cables provided in the
original kit, remove this connection
using using a tweezer or any other
suitable tool.
2. Connect the Positive leads (marked as
‘+’) from the two solar panels to the
suitable mating branch connector (as in
fig 8.1.).
3. Connect the Negative leads (marked
as ‘-’) from the two solar panels to the
suitable mating branch connector (as in
fig 8.1.).
4. Mate the MC branch connectors to the
corresponding mating MC connector on
the pre-assembled cables provided with
your original kit.
Fig. 8.1. Connecting solar modules in parallel.
Additional
Solar Panel
Existing
Solar Panel
Negative MC
branch connector
Positive MC
branch connector
If the additional solar panels
are required to be mounted at a
distance from the existing solar
panel, a pair of cables with a MC4
connector pre-assembled at one
end is provided.
1. Cut the cable pair to the
appropriate length.
2. Strip 0.25" of the insulation
at the blunt ends using a
suitable wire stripper.
3. Crimp the male and female
MC4 connector to the blunt
end of the appropriate cable
with a suitable wire crimping
tool.
4. Complete the connections as
shown in Fig.8.2.
Fig. 8.2. Connection solar modules in parallel with additional module.
Negative MC
branch connector
Positive MC
branch connector
Additional cable pair
Additional
Solar Panel
Existing
Solar Panel
