41.3″ · 1,048 mm wide · 1.18″ (30 mm) frame · 62.2 lb (28.2 kg)

Solar panelCanadian Solar

Canadian Solar CS3W-410PB-AG

Name: Canadian Solar CS3W-410PB-AG
Brand: Canadian Solar

144 half-cut cells, PERC, bifacial, 2.0 mm heat strengthened glass. Power classes 380–445 W in the CEC list.

CEC listed · Jun 17, 2019UL 61730Bifacial · 70%PERC

Power class

Power (STC)410 Wtolerance +5 / −0 W
Efficiency≈18.3%calculated from area
%/°C Pmax−0.37CEC test: −0.358
PTC / STC93.4%PTC 383 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 14 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
CS3W-380PB-AG	380 W	46.40	10.58	37.90	10.03	≈17.0%	354 W	Jun 17, 2019
CS3W-385PB-AG	385 W	46.60	10.66	38.10	10.11	≈17.2%	359 W	Jun 17, 2019
CS3W-390PB-AG	390 W	46.80	10.74	38.30	10.19	≈17.5%	364 W	Jun 17, 2019
CS3W-395PB-AG	395 W	47.00	10.82	38.50	10.26	≈17.7%	369 W	Jun 17, 2019
CS3W-400PB-AG	400 W	47.20	10.90	38.70	10.34	≈17.9%	374 W	Jun 17, 2019
CS3W-405PB-AG	405 W	47.40	10.98	38.90	10.42	≈18.1%	378 W	Jun 17, 2019
CS3W-410PB-AG	410 W	47.60	11.06	39.10	10.49	≈18.3%	383 W	Jun 17, 2019
CS3W-415PB-AG	415 W	47.80	11.14	39.30	10.56	≈18.6%	387 W	Jun 17, 2019
CS3W-420PB-AG	420 W	48.00	11.26	39.50	10.64	≈18.8%	393 W	Jun 17, 2019
CS3W-425PB-AG	425 W	48.20	11.29	39.70	10.71	≈19.0%	393 W	Nov 1, 2019
CS3W-430PB-AG	430 W	48.40	11.32	39.90	10.78	≈19.2%	402 W	Nov 1, 2019
CS3W-435PB-AG	435 W	48.60	11.35	40.10	10.85	≈19.5%	406 W	Nov 1, 2019
CS3W-440PB-AG	440 W	48.70	11.40	40.30	10.92	≈19.7%	407 W	Dec 11, 2020
CS3W-445PB-AG	445 W	48.80	11.45	40.50	10.99	≈19.9%	412 W	Nov 12, 2020

≈ efficiency = Pmax ÷ panel area 2.234 m² (datasheet size).

CEC note: Formerly listed under Canadian Solar Inc.

Build & dimensions

Canadian Solar datasheet · Cali-Graf calculation

Dimensions83.9 × 41.3 × 1.18 in2,132 × 1,048 × 30 mm
Module area2.23 m² (24.1 ft²)length × width
Weight62.2 lb (28.2 kg)
Cells144 half-cut cellsPERC
Back cover2.0 mm heat strengthened glass
FrameAnodized aluminium alloy
Junction boxIP68, 3 diodes
Cable / connector4.0 mm² (IEC), 12 AWG (UL) · T4 series or H4 UTX or MC4-EVO2

Heat & cold behaviour

Canadian Solar datasheet · CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation

	Datasheet	CEC listing test
Pmax coefficient γ	−0.37 %/°C	−0.358 %/°C
Voc coefficient β	−0.29 %/°C	−0.271 %/°C
Isc coefficient α	+0.05 %/°C	+0.044 %/°C
Vmp coefficient	≈ −0.42 %/°C	—
Operating cell temperature	NMOT 41 ± 3 °C	NOCT 43.6 °C

Vmp coefficient ≈ γ − α (datasheet); used only for the hot-roof voltage estimate.

Away from lab conditions — CEC listing test points

Class	Pmax at NOCT	Vmp × Imp at NOCT	Pmax at 200 W/m²	Low-light efficiency vs STC
380 W	282.2 W	35.38 V × 7.98 A	73.3 W	96%
385 W	286 W	35.56 V × 8.04 A	74.2 W	96%
390 W	289.8 W	35.75 V × 8.11 A	75.2 W	96%
395 W	293.3 W	35.94 V × 8.16 A	76.1 W	96%
400 W	297.1 W	36.12 V × 8.22 A	77.1 W	96%
405 W	300.9 W	36.31 V × 8.29 A	78.1 W	96%
410 W	304.5 W	36.5 V × 8.34 A	79.1 W	96%
415 W	312.5 W	37.34 V × 8.37 A	80.2 W	97%
420 W	312 W	36.87 V × 8.46 A	81 W	96%
425 W	311.9 W	35.99 V × 8.67 A	82 W	97%
430 W	323.9 W	37.91 V × 8.54 A	83.2 W	97%
435 W	327.6 W	38.1 V × 8.6 A	84.1 W	97%
440 W	322.8 W	36.53 V × 8.84 A	84.9 W	96%
445 W	326.5 W	36.72 V × 8.89 A	85.9 W	96%

Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Electrical & strength ratings

Max system voltage1,500 V
Max series fuse25 A
Fire rating (UL 61730)Type 3
Module temperature−40 °F to +185 °F−40 °C to +85 °C
Power tolerance+5 / −0 W

Bifacial performance

NLR SAM module library · Canadian Solar datasheet

BifacialYes
Bifaciality70%
Back cover2.0 mm heat strengthened glass

Rear gain depends on mounting height and ground reflectance; flush roof mounts receive little rear light.

Certifications

CEC PV Module List (Oct 7, 2026) · Canadian Solar datasheet

UL 61730UL 1703IEC 61215IEC 61730IEC 61701IEC 62716IEC 60068MCSFire rating Type 3 (UL 61730)ISO 14001ISO 45001ISO 9001

UL 61730CEC listing
UL 1703datasheet
IEC 61215datasheet
IEC 61730datasheet
IEC 61701datasheet
IEC 62716datasheet
IEC 60068datasheet
MCSdatasheet
Fire rating Type 3 (UL 61730)datasheet
ISO 14001factory, datasheet
ISO 45001factory, datasheet
ISO 9001factory, datasheet

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index

PVEL Scorecards

Canadian Solar named Top Performer, 2020–2026

RETC PV Module Index

Canadian Solar, 2025

This exact series is not listed in published PVEL Top Performer tables. Results below are for the manufacturer.

RETC PV Module Index — Canadian Solar

Year	Recognition
2025	Reliability High Achiever

Inverter compatibility & string sizing

Canadian Solar datasheet · Cali-Graf calculation · NLR PVWatts v8 · CEC PV Module List (Oct 7, 2026) · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)

CityColdest air, °CHottest cell, °CString inverter

50.8 V

Voc when cold

per panel

31.1 V

Vmp when hot

per panel

Max panels / string

max DC 600 V

Min panels / string

MPPT from 60 V

Defaults come from NLR TMY weather (coldest hour, hottest modeled cell). Code calculations (NEC 690.7) use the ASHRAE extreme annual minimum, which is usually colder — enter it above.

String inverters most named in SoCal permits

Inverter	Max DC input	MPPT	Window source	Panels per string
Tesla 1538000-xx-y	600 V	60–480 V	datasheet	2–11
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	3–11
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	4–11
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	8–9

Microinverters (one per panel)

Microinverter	Recommended module power	Max DC input	MPPT	Voc cold / Vmp hot	Check	DC/AC
Enphase IQ8PLUS-72-2-US	235–440 W	60 V	29–45 V	50.8 / 31.1 V	✓ Within range	1.41
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	50.8 / 31.1 V	✗ Not a match: module voltage below MPPT range	1.08
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	50.8 / 31.1 V	✓ Within range	0.53
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	50.8 / 31.1 V	✓ Within range	1.26
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	50.8 / 31.1 V	⚠ Works; below MPPT at peak heat	1.17

Voltage check against the microinverter datasheets — confirm the pairing on the manufacturer’s module compatibility list. Rows appear only when the panel’s power is inside the microinverter’s recommended module power range.

SolarEdge and other optimizer-based systems size strings by the optimizer rules — use the manufacturer’s designer. Reference inverters: most named in SoCal permits since Oct 2024.

Expected production in Southern California

NLR PVWatts v8 · Cali-Graf calculation

PanelsCity for chartSystem size

City	kWh / kW / yr	kWh / panel / yr	kWh / system / yr	Sun, kWh/m²/day
Los Angeles	1,676	687	11,682	6.08
Palmdale	1,835	752	12,790	6.69
Chula Vista	1,696	695	11,821	6.11
Huntington Beach	1,643	674	11,452	5.89
Riverside	1,696	695	11,821	6.21
Santa Clarita	1,724	707	12,016	6.28

Estimate for comparison, not a quote: shading, roof orientation and local losses change real output. Roof mount, 20° tilt, south, 14% system losses.

Compare with similar 410 W panels

CEC PV Module List (Oct 7, 2026) · Qcells datasheet · Kiwa PVEL Scorecard · building permits

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)	SoCal permits (series)
Canadian Solar CS3W-410PB-AG	410 W	≈18.3%	−0.358	47.6	11.06	brand 5×	—
Qcells Q.PEAK DUO BLK ML-G10+ 410	410 W	≈20.9%	−0.337	45.37	11.2	product 2022, 2023	221
JA Solar JAM54S31-405/MR	405 W	≈21.3%	−0.329	37.23	13.87	product 2023, 2024	152
REC Group REC410AA Pure	410 W	≈22.9%	−0.256	49	10.35	brand 9× (2016–2025)	66

Same fields from the same sources for every row; ≈ efficiency is calculated from the listed area. Comparable series: other brands, same product group, power range covering this class.

About Canadian Solar

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · RETC PV Module Index · building permits

ManufacturerCanadian Solar
Listed in CEC asCSI Energy Storage Co., Ltd., CSI Solar Co., Ltd., Canadian Solar
Websitecanadiansolar.com
PVEL Top Performer (manufacturer)5 Scorecards (2020–2026)
RETC PV Module Index2025
Current panel series in CEC list38

Other series by SoCal permits

CS6R-xxxMS-HL · 46CS3N-xxxMS · 46CS6.1-54TM-xxxH · 9CS1Y-xxxMS · 6CS3W-xxxMS · 6CS3W-xxxMB-AG · 5

Questions & answers

How efficient is the Canadian Solar CS3W-410PB-AG?

Calculated from the panel area (2.23 m²): about 18.3% for the 410 W class. 410 W over 2.23 m² equals about 184 W per square meter.

How much energy does one panel produce in Los Angeles or Palmdale?

PVWatts v8 with typical-year weather gives about 687 kWh per year per 410 W panel in Los Angeles and about 752 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.37 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 19.2% below the STC rating.

How many panels fit on one string?

With the Tesla 1538000-xx-y (max DC 600 V, MPPT from 60 V, datasheet) in Los Angeles the calculator gives 2–11 panels per string (Voc at 2 °C = 50.8 V, Vmp at 74 °C cell = 31.1 V). Final design must follow the inverter manual and NEC 690.7.

Does it work with Enphase IQ8PLUS-72-2-US microinverters?

Voltage check against the Enphase datasheet: Voc when cold 50.8 V vs max input 60 V; Vmp when hot 31.1 V vs MPPT low 29 V; recommended module power 235–440 W. Confirm on the microinverter maker’s compatibility list.

How big and heavy is it?

83.9 × 41.3 × 1.18 in (2,132 × 1,048 × 30 mm), 62.2 lb (28.2 kg).

Is it bifacial?

Yes, bifaciality 70%. Rear gain depends on mounting height and ground reflectance.

Has this panel been reliability-tested?

This exact series is not in published PVEL Top Performer tables; Canadian Solar was named a Top Performer in 5 Scorecards (2020–2026).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Canadian Solar — manufacturer datasheet “BiHiKu SUPER HIGH POWER BIFACIAL POLY PERC MODULE UP TO 30% MORE POWER FROM THE BACK SIDE”.
Qcells — manufacturer datasheet “Q.PEAK DUO BLK ML-G10+ ENDURING HIGH PERFORMANCE”.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2020–2026.
RETC — PV Module Index report.
NLR (formerly NREL) — System Advisor Model CEC module and inverter libraries (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
Inverter datasheets — APsystems (Alt Power System), Enphase, Solis (Ginlong), Tesla (manufacturer documents).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).