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Bosch Solar Module c-Si M 60 IN30125
Bosch Solar Energy AG
Bosch Solar Module c-Si M 60 IN30125
Bosch Solar Energy AG
The term “array” is used to describe the assembly of
several modules on a support structure with associ-
ated wiring. Use copper wire that is sunlight resistant
and is insulated to withstand the maximum possible
system open circuit voltage. Check your local codes
for requirements.
Use system wiring with suitable cross-sectional areas
and connectors that are approved for use at the
maximum short-circuit current of the module.
The maximum open circuit voltage of the system
must not be greater than the specified maximum
system voltage for the module.
When reverse currents can exceed the value of the
maximum protective fuse marked on the back of the
module, a properly rated and certified over current
device (fuse or circuit breaker) must be connected in
series with each module or string of modules.
The fuse used is a glass / HRC type of rating 15
Amps. The fuse rating has to begreater than or equal
to 135 % of the module’s short circuit current.
The rating of the over-current device shall not exceed
the value of the maximum protective fuse marked on
the back of the module.
Match the polarities of cables and terminals when
making the connections; failure todo so may result in
damage to the module.
Connecting modules in reverse polarity to a high
current source, such as a battery, will destroy the
bypass diodes and render the module inoperative.
Bypass diodes are not user replaceable.
The junction box is under no circumstances being
opened. Opening the junction box may void the
warranty.
Modules with a suspected electrical problem should
be returned to Bosch Solar Energy AG for inspection
and possible repair or replacement as per the war-
ranty conditions provided by Bosch Solar Energy AG.
Bonding connection
Module frames should be connected to an earth ground
for safety and protection from lightning. A good connec-
tion between the grounding hardware is essential for an
effective ground. The anodization on a module frame
provides a coating to minimize the corrosion due to
weather and it acts as a barrier that reduces the effec-
tiveness of the grounding connection. For an adequate
ground, the grounding hardware should pierce the ano-
dization layer.
It is common for dust and dirt particles to accumu-
late on the surface of the module. This can reduce
the optimal output performance of the solar mod-
ules. Normally, the accumulated dust will be washed
Bypass Diodes
When the modules are shaded partially, it may cause
reverse voltage across cells or modules, because the
current from other cells in the same series is forced to
flow through the shaded area. This may cause undesir-
able heating to occur. When a bypass diode is wired in
parallel with the series string, the forced current will
flow through the diode and bypass the shaded module,
thereby minimizing module heating and array current
losses.
The use of a diode to bypass the shaded area can mini-
mize both heating and array current reduction.
All Bosch Solar Energy AG modules are equipped with
factory installed bypass diodes. The factory installed
diodes provide proper circuit protection for the systems
within the specified system voltage, so that you do not
need any other additional bypass diodes. If your system
specifications require you to add or change diodes,
please contact authorized Bosch Solar Energy AG repre-
sentative for recommendations for the proper diode type.
Blocking Diodes
Blocking diodes are typically placed between the battery
and the PV module output to prevent battery discharge
at night. Bosch Solar Energy AG modules do not contain
a blocking diode when shipped from the factory. It is
recommended that a charge controller be used to pre-
vent the batteries from being overcharged and dis-
charged at night.
Defective or old solar modules must be appropriately
disposed of. These may not be disposed of in household
waste.
8 Grounding 9 Diodes
10 Maintenance
11 Disposal
10 | Wiring
|
Grounding
Diodes
|
Maintenance | 11
Important Notice!
The above figure is for hardware mounting reference.
Important Notice!
away by periodic rainfall, but in some instances some
maintenance is recommended to clean the surface of
the glass with water and a soft cloth or sponge. A
mild non-abrasive detergent may be applied for per-
sistent dirt.
However it is advisable to perform periodic inspec-
tion of the modules for damage to glass, back-skin,
frame, junction box or external electrical / loose
connections and corrosion by the authorized profes-
sional.
No aggressive and abrasive cleansers or chemicals
should ever be used on the coated front glass. No
alkali based chemicals should be used, including
ammonia based solutions.
Always wear rubber gloves for electrical insulation
while maintaining, washing or cleaning modules.
Once a year, check that growing foliage has not
caused module shading. Correct if this condition has
occurred.
As required, check that the system voltage and cur-
rent output (or power output) is consistent with the
expected output. Such a check will help to determine
if array cleaning is needed, if there are loose or cor-
roded connections, or if there is a component prob-
lem.
Warning: Do not attempt to clean a module with a
broken glass over or a perforated backsheet. Such a
module can present a serious shock hazard.
Important Notice!
Place cup
washer
between
frame and
wire with con-
caveside up
Grounding Screw
Flat washer
Ground Wire
Cup washer
Star washer
Nut
Frame
Side View
