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Electrical Installation
Next, assemble the recommended ILSCO grounding lug to the aluminum frame
using stainless steel M3 or M5 screw and hardware as shown below. Note: there
are two different size grounding holes, the smaller of which is being phased out.
Further, buildup of hardware for mounting the grounding lug are the
same—except for the M3 screw, an added flat washer is mounted directly under
the M3 screw head. The star washer is fitted directly under the grounding lug and
makes electrical contact by penetrating the anodized coating of the aluminum
frame, The screw assembly is further fitted with a flat washer, then a split lock
E
washer and finally a nut to secure the entire assembly, as shown. Recommended
torque of M3 or M5 screw assembly is 0.8NM or 1.5 NM.
ILSCO grounding
lug
M3 screw
Flat washer
Star washer
Split washer
For module with Φ4mm grounding holes
9
Version IEC081007
M5 screw
Aluminum frame
Star washer
Flat washer
Split washer
Nut
For module with Φ5.1mm grounding holes
Electrical Installation
General installation
Do not use modules of different configurations in the same system. The max. number of module (N) = Vmax system / [Voc(at STC)].
Several modules are connected in series and then in parallel to form a PV array, especially for application with a high operation voltage. If modules are connected in series, the
total voltage is equal to the sum of individual voltages.
For applications requiring high currents, several photovoltaic modules can be connected in parallel; the total current is equal to the sum of individual currents.
Module is supplied with connectors to use for system electrical connections.
Consult rated local wiring regulations to determine system wire size, type, and temperature.
The cross section area of cable and the capacity of connector must be selected to suit the maximum system short circuit current(Recommended cross section area of cable is
2
4mm
for a single module and rated current of a connector is larger than 10A ), otherwise the cable and connector will be overheated under large current. Please note that the
upper limit temperature of cable is ≥85
The junction box has a breather port. The breather port must be mounted facing down and can not be exposed to rain. Therefore, the junction box must be on the higher side
of the module when it is mounted.
ILSCO grounding
lug
Aluminum frame
Flat washer
Nut
o
o
C,and the connector is ≥105
C.
Breather
port
E
10
Version IEC081007
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