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a module or wiring.
· do not install modules in strong wind.
· do not use or install broken modules.
· do not contact module surface if the front or rear glass is
broken. This may cause electric shock.
· do not open the cover of the junction box at any time.
· do not attempt to repair any part of the PV module. The
module does not contain any serviceable parts.
· do not disassemble a module or remove any module part.
· do not artificially concentrate sunlight on a module.
· do not connect or disconnect modules when current from
the modules or an external source is present.
3.0
mecHanIcal / electRIcal sPecIfIcatIons
Module electrical ratings are measured under Standard Test
Conditions (STC) of 1000 W/m
spectrum, and a cell temperature of 25°C. Detailed electrical
taBle 1: loW temPeRatuRe coRRectIon factoRs foR oPen-cIRcuIt voltaGe
lowest expected ambient temperature (°c/°f)
24 to 20 / 76 to 68
19 to 15 / 67 to 59
14 to 10 / 58 to 50
9 to 5 / 49 to 41
4 to 0 / 40 to 32
-1 to -5 / 31 to 23
-6 to -10 / 22 to 14
-11 to -15 / 13 to 5
-16 to -20 / 4 to -4
-21 to -25 / -5 to -13
-26 to -30 / -14 to -22
-31 to -35 / -23 to -31
-36 to -40 / -32 to -40
EN-Rev IM/GN-BM-EN/1.0 Copyright © June 2018. Canadian Solar Inc.
2
irradiance, with an AM 1.5
and mechanical characteristics of Canadian Solar Inc.
crystalline silicon PV modules can be found in Annex
A (Mechanical And Electrical Ratings). Main electrical
characteristics under STC are also stated on each module
label. Please refer to the datasheet or the product
nameplate for the maximum system voltage.
Under certain conditions, a module may produce
higher current or voltage than its STC rated power. As
a result, a module open-circuit voltage and short-circuit
current under STC should be multiplied by 1.25 when
determining component voltage ratings, conductor
ampacities, overcurrent device ratings, and the size
of controls connected to the PV output. For Bifacial
modules, the operating current is related to specific
mounting conditions, and will vary under different
module mounting height and albedo of ground surface.
A higher multiplier than 1.25 may be considered by
system design engineers according to relevant design
codes and system simulation results.
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, as described in section 690-
8 of U.S. NEC. Electrical calculations and design must be
performed by competent engineer or consultant.
correction factor
1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
1.20
1.21
1.23
1.25
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