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EN-Rev IM/GN-BM-EN/2.1 Copyright © April, 2022. CSI Solar Co., Ltd.
www.csisolar.com
connector.
Do not
allow children or unauthorized
persons near the installation site or
module storage area.
Use electrically insulated tools to reduce the risk of
electric shock.
If the disconnects and over current protection devices
(OCPDs) cannot be opened or the inverter cannot be
powered down, cover the fronts of the modules in the
PV array with an opaque material to stop the
production of electricity when installing or working on
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
attempt to repair any part of the module. The
PV module does not contain any serviceable parts.
Do not
open the cover of the junction box at any time.
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
2
irradiance, with an
AM1.5 spectrum, and a cell temperature of 25°C. Detailed
electrical and mechanical characteristics of Canadian
Solar crystalline silicon PV modules can be found in Annex
A (Module Specifications) on www.csisolar.com. Main
electrical characteristics at 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 more
current or voltage than its Standard Test Conditions 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 Table 1
below), when determining component ratings and
capacities.
Table 1: Low temperature correction factors for open-
circuit voltage
Lowest Expected
Ambient Temperature
(°C/°F)
Correction Factor
24 to 20 / 76 to 68
1.02
19 to 15 / 67 to 59
1.04
14 to 10 / 58 to 50
1.06
9 to 5 / 49 to 41
1.08
4 to 0 / 40 to 32
1.10
-1 to -5 / 31 to 23
1.12
-6 to -10 / 22 to 14
1.14
-11 to -15 / 13 to 5
1.16
-16 to -20 / 4 to -4
1.18
-21 to -25 / -5 to -13
1.20
-26 to -30 / -14 to -22
1.21
-31 to -35 / -23 to -31
1.23
-36 to -40 / -32 to -40
1.25
Alternatively, a more accurate correction factor for the
open-circuit voltage can be calculated using the following
formula:
𝐂
Voc
= 𝟏 − 𝜶
𝑽𝒐𝒄
× (𝟐𝟓 − 𝐓)
T (°C) is the lowest expected ambient temperature at the
system installation site.
α
Voc
(%/°C) is the voltage temperature coefficient of the
selected module (refer to corresponding datasheet).
OCPD rating selection should be done per the following
guidance, where the minimum OCPD rating possible is
determined by calculating the expected maximum circuit
current for the PV system, and the maximum OCPD rating
constrained by the IEC 61215: 2016 and UL61730 standard
requirements for the certified PV modules.
Minimum string fuse rating < X ≤ Maximum string fuse
rating.
The maximum string fuse ratings can be found in ANNEX
A: Mechanical and Electrical Ratings for all the certified
Canadian Solar double glass module types.
