Module electrical ratings are measured under Standard Test Conditions (STC) of 1000 W/m2 irradiance,
with an AM1.5 spectrum, and a cell temperature of (25 ± 2) °C per IEC 60904-3. Detailed electrical and
mechanical characteristics of Apollo PV modules can be found herein and at www.Apollo-power.com.
The main electrical characteristics at STC are also stated on each module label. Please refer to the
datasheet or the product nameplate and datasheet for the maximum system voltage rating,
performance data and temperature coefficients.
The AL1206 module is safety Class 2 rated per IEC 61730-1
Note that under certain conditions the module may produce more current or voltage than under its
Standard Test Condition's rated power. As a result, the module short-circuit current under STC should
be multiplied by 1.25, and a correction factor should be applied to the open-circuit voltage (see
calculation below) when determining component ratings and capacities. Depending on your local
regulations, an additional 1.25 multiplier for the short-circuit current (giving a total multiplier of 1.56)
may be applicable when sizing conductors and fuses. Maximum operating altitude:
Please consult Apollo power technical support department for more information on the use of modules
in special climates, such as an altitude greater than 2000 m.
Open-circuit voltage can be calculated using the following formula:
Where:
is the lowest expected ambient temperature at the system installation site
is the voltage temperature coefficient of the selected module (refer to the corresponding
datasheet)
Note that Electrical calculations and design must be performed by certified personnel.
System adjustment calculations
Maximum No. of modules in parallel (
):
)+1
Therefore max No' of modules in parallel is 3.
Maximum No. of modules in series (
):
Therefore max No' of modules in series is 25.
* Safety factor 1.25 given in norm, can be higher.
To Next Page
Loading...