5
3.2 Module Performance at Low Irradiance
Efficiency reduction of maximum output from an irradiance of 1,000 W/m
2
to 200 W/m
2
at 25 °C is typically 2.0 %.
The standard deviation for the reduction in efficiency is 1.9 %.
3.3 Thermal Characteristics
NOCT
47 °C
Temperature coefficient of Isc
α
+0.01 %/K
Temperature coefficient of Voc
β
-0.30 %/K
Temperature coefficient of Pmax
δ
-0.31 %/K
3.4 Characteristics for System Design
Maximum system voltage
Vsys
1,000 V DC (UL 600 V DC)
Limiting reverse current
Ir
7 A
Maximum series fuse rating
Isf
4 A
• ThesumofVocformodulesinseriesmustnotexceedthemaximumsystemvoltageofthemoduleunderanycondition.
This includes also low temperature conditions.
• Reversecurrentappliedtothemodulesshouldnotexceed7Aunderanycircumstances.
UL:
Modules installed in parallel will be provided with the listed maximum series fuse, as specified.
3.5 Mechanical Data
Dimensions (L x W x H)
1,257 x 977 x 35 mm (49.5 x 38.5 x 1.4 in)
Weight
20.0 kg (44.1 lbs) / 16.3 kg/m
2
(3.3 lbs/ft
2
)
Module operating temperature
-40 °C to 85 °C
Application class on IEC61730
Class A
Fire safety class on IEC61730*
1
Class C
Cable
2.5 mm
2
/ AWG14 (halogen free)
Snow load (to the front of the module)*
2
2,400 Pa (IEC61646) / 1,600 Pa design load (UL1703)
Wind load (to the back of the module)
2,400 Pa (IEC61646) / 1,600 Pa design load (UL1703)
*1 UL: The fire rating of this module is valid only when mounted in the manner specified in the mechanical mounting instructions.
*2 UL: The load applied to a module under UL testing conditions is 1.5 times greater than the module’s design load. Accordingly, 2,400 Pa (50 lbs/ft
2
) is loaded to test the
1,600 Pa (33.4 lbs/ft
2
)UL design load .
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