9
AEG STANDARD MODULE INSTALLATION MANUAL
GD202104 V1-21
EN
The modules are fitted with two pre-assembled
sunlight resistant, isolated cable leads, which end with
PV fast connectors for the electrical connection of
the system (positive [+] and negative [-] terminals).
Connectors are Multi-Contact (MC4) or Multi-Contact
compatible (MC4-compatible). Cables and connectors
must not be removed or cut off.
Refer to the electrical parameters reported on
the label of the module when selecting the size
of the cables connecting the module strings to
the solar inverter. For electrical design considerations,
when determining component voltage ratings,
conductor current ratings, fuse sizes and the rest of
electrical hardware connected to the module strings,
the values provided on the module label or on the
related datasheet should be multiplied by a factor of
1.25 for Short Circuit Current (Isc) and Open Circuit
Voltage (Voc).
Please consult rated local wiring regulations to
determine system wire size, type, and temperature
rating of conductors to be connected to module
connectors.
The maximum system voltage is 1000 volts or 1500
volts depending on the product type. Please check the
product label and datasheet accordingly.
The maximum number of series connected modules
depends on system design, the type of inverter used
and environmental conditions. Always ensure that the
modules are assembled with the appropriate string fuse
for circuit protection based on the maximum series fuse
rating of the module and local electrical installation
codes.
There is no specific limitation on the number of
modules that can be connected in parallel; the number
of modules is determined by system design parameters
such as current or power output.
To prevent the cables and the connectors from
overheating, the cross section of the cables and
the capacity of the connectors must be selected to
suit the maximum system short circuit current. The
recommended PV wire should have a cross section of
minimum 4mm
2
.
3.3.3 Grounding
Please refer to the respective National Electrical
Code requirements and standards for safety-related
grounding of racking system and/or module frames.
AEG PV Modules use an anodic oxidized aluminum
frame; modules should hence be connected to the
equipment grounding conductor to prevent electrical
shock.
The frame rails have pre-drilled holes marked
with a grounding sign. The grounding holes
should be used for grounding purposes only and
not for module mounting.
Grounding methods:
Use stainless steel bolt and washer to bond the ground
wire and aluminum frame through the grounding hole
(see figure 7A and 7B). Please consider the below bolt
types and tightening torques:
Series
Bolts/Nuts
Torque
AS-Mxxx2
M8
3-7 N
•
m
AS-Mxxx3
M5
2.1±0.2 N•m
AS-Mxxx7-S
M4
4 N•m
AS-Mxxx8 / AS-Pxxx8 M4
8.5-12.5 N
•
m
AS-Mxxx9 / AS-Pxxx9 M3
2.3 N
•
m
It is recommended to use a 4-14 mm
2
(AWG 6-12)
exposed copper wire as ground wire.
Fig. 7A Grounding method with bolt and washer
Fig. 7B Grounding Clip
Grounding clip
Earth wire
Frame
Laminate
Nut
Spring washer
Star washer
Grounding hole
Ground wire
Flat washer
Flat washer
Screw
