Out of stock

Canadian Solar 400W Solar Panel CS1Y-400MS

Authorized Distributor

(3)

Q&A

SpecificationCompare
Rated Power Output 400 W
Voltage (VOC)52.3V
Cell TypeMonocrystalline

All Canadian Solar products All 400 Watt Panels

Attachments

Warranty Information .PDF

Canadian Solar 400W Solar Panel CS1Y-400MS Installation Guide .PDF

Canadian Solar 400W CS1Y-400MS Data Sheet .PDF

Specification

Length	79.6in
Width	39.2in
Rated Power Output	400 W
Voltage (VOC)	52.3V
Maximum String Voltage	1000V
Cell Type	Monocrystalline
Rated Efficiency	19.9%
Connector Type	T4 - MC4 compatible
Backsheet Color	black
Frame Color	black
Dimensions LxWxH	79.6 x 39.2 x 1.38 in
Pallet Qty	30
Manufacturer	Canadian Solar
Manufacturer Part #	CanadianSolar400WSolarPanelCS1Y-400MS
Operating Temperatures	-40 °F to +185 °F
Scope of Application	Solar Panels for Boats Solar Panels for Home Solar Panels for RV
Use	Grid-Tie Off-Grid
Warranty	15/25 Year See Warranty details
Delivery Time	5-7 business days

About product

Canadian Solar 400W Solar Panel is an all-black high density mono PERC module, which offers great power output. The module shows an efficiency of up to 19.9%, which is achieved due to higher light absorption and reduced energy loss in cable. Canadian Solar CS1Y-400MS is an ideal solution for residential rooftop installations.

400W Power Output
Monocrystalline
19.9% Module Efficiency
Better shading tolerance
Heavy snow load up to 5400 Pa
Wind load up to 2400 Pa
MC4 or T4 series Connector

High Efficiency of up to 19.9%

Canadian Solar 400W CS1Y-400MS modules have a higher than average efficiency of 19.9%, which is achieved due to higher light absorption, innovative module design, and better shading tolerance.

Extreme Weather Resistance

Canadian Solar panels are designed to work well even under extreme weather conditions, being able to withstand heavy snow load of up to 5400 Pa and wind load of up to 2400 Pa. Operating temperature range is -40°F ~ 185°F.

High Reliability

Canadian Solar 400W CS1Y-400MS module features lower internal current and lower hot spot temperature, which adds to their outstanding reliability. Cell crack risk has been limited in small regions.

Easy Mounting

Reserved mounting holes allow for easier installation. Cables are optimised to be just the right length.

25-Year Warranty

Canadian Solar panels come with a 25-year linear power output warranty and 15-year product warranty on materials and workmanship.

Size

79.6" x 39.2" x 1.38"

Weight

49.8 lbs

Reviews & Questions

Reviews (3)
Questions (6)

The delivery was fast and a calculator really did help in planning the system. Pleasure doing business with you guys.

S8nt M.

07/21/2021 07:03 pm

I purchased these panels half a year ago for my house in the countryside. A system even produces a little more than i expected. had to get a new fridge for the all the surplus

Clinton

06/27/2021 10:48 am

I’m in New York, there really isn’t a lot of sun here, but panels work surprisingly well. Electricity is expensive around here, so i expect these panels to pay off quickly. Thanks!

Tera

06/04/2021 12:27 pm

Leave a review

is there a detailed drawing how to secure the panel say on a 2x8 wood frame , with modules 69.6" x 39.2" o.c. since I noticed that this panels can be butt joint? without spacing,

Ken

01/31/2022, 12:42

A1 SolarStore

We don't have such a drawing, sorry. Generally, it's your installer who takes care of this. You can check out our articles on installation of solar panels.

It has the voltage listed at 52.3v how would this work with a 12v system

jimmy apodaca

11/24/2021, 00:50

A1 SolarStore

You need charge controller.

I have a 500 watt inverter, its voltage is rated 10.5 to 28 vdc, will the single 400 watt solar panel work?

bobbyb8857@att.net

11/12/2021, 12:05

A1 SolarStore

Is it polycrystalline or monocrystalline?

beav8r

07/16/2021, 12:11

A1 SolarStore

Canadian Solar 400W Panel is a monocrystalline PV module.

I don't want to clean panels from snow in the winter. how badly it’s going to affect their performance? can they break under the snow?

Scott Marrow

06/28/2021, 05:09

A1 SolarStore

Canadian Solar panels withstand snow loads up to 5400 Pa, so no, they won’t break. A thin layer of snow is not going to be an issue for their performance, but the thicker it gets, the more energy you lose.

Hello, i want to install these panels on top of my house, but there are no power lines nearby. How do i set up a system?

Quentin J.

05/19/2021, 15:08

A1 SolarStore

You can go for an off-grid type of system: panels aren’t connected to the grid and their energy is stored in the batteries. Find batteries in a corresponding section on our website.

Authorized Canadian Solar Distributor

Authorized Distributor Certificate

Genuine Products: You’re getting the real deal, backed by the manufacturer’s warranty.
Exclusive Offers: You can access promotions, discounts, or bundles that are only available through authorized distributors.
Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.

Overview
Articles
FAQ

Canadian Solar Panels for Sale - Efficiency Meets Affordability

Canadian Solar Panels for Sale – Efficiency Meets Affordability

Discover premium Canadian Solar panels from the world's 4th largest solar manufacturer with over 20 years of proven excellence. As a Tier 1 manufacturer trusted across 150+ countries, Canadian Solar delivers high-performance, cost-effective photovoltaic solutions that power millions of homes and businesses globally. Whether you're searching for Canadian Solar panels for sale or comparing Canadian Solar panels price options, our comprehensive selection features cutting-edge technology backed by industry-leading warranties. From residential rooftops to utility-scale projects, Canadian Solar's innovative HiKu6 and TOPHiKu6 series offer unmatched reliability and performance.

Why Canadian Solar Dominates the Global Market

⚡

High Power Output

Up to 585W with advanced N-type TOPCon technology delivering 22.8% efficiency

🛡

Durability & Warranty

25-year performance warranty with <2% degradation proven by DNV testing

🌎

Global Trust

Tier 1 bankability rating from Bloomberg with 70+ GW installed worldwide

🧊

All-Climate Performance

Operating range -40°C to +85°C with superior snow load resistance

💰

Competitive Pricing

Premium Tier 1 quality at mid-market prices with excellent cost-per-watt ratios

Expert Answers to Your Canadian Solar Questions

Where are Canadian Solar panels made?

Despite the name, Canadian Solar operates as a global manufacturer headquartered in Canada with advanced production facilities in China, Vietnam, Indonesia, and Brazil. This strategic manufacturing network ensures consistent quality while maintaining competitive pricing for customers worldwide.

Why choose Canadian Solar 450W panels?

Canadian Solar 450W panels deliver exceptional efficiency ideal for space-constrained rooftops or high-output commercial installations. The HiKu6 series achieves 21.3% efficiency with comprehensive LID/LeTID mitigation technology that reduces performance degradation by up to 50% compared to standard panels.

How reliable are Canadian Solar panels?

Canadian Solar's reliability is independently verified by DNV testing, which found their TOPBiHiKu modules demonstrated "exceptional durability across all extended-duration tests with degradation below two percent." Customer reviews consistently describe them as the "Acura or Lexus of the panel world" for dependable performance.

Compare Canadian Solar Panels Price and Performance

Feature	Canadian Solar 450W	Jinko Solar 440W	LONGi Solar 445W
Power Output	450W	440W	445W
Efficiency	Up to 21.3%	22.02%	21.8%
Warranty (Performance)	25 Years	25 Years	25 Years
Price/Performance Ratio	★★★★★	★★★★☆	★★★★☆
Bifacial Option	✅	✅	✅
Notable Strengths	Cost-effectiveness, reliability	Higher peak efficiency	Premium build quality

Featured Canadian Solar Product Lineup

Canadian Solar TOPBiHiKu7 Bifacial 700W+ Series

Industry-leading bifacial technology with power outputs from 685W to 710W achieving up to 22.9% efficiency. Generate power from both sides for up to 30% more energy production. Half-cut cell technology provides enhanced low-light performance and reduced hot spots. Models: CS7N-TB-AG-US series, assembled in USA with 12-year product warranty and 30-year performance guarantee.

→ Check 700W Panels

Canadian Solar HiKu6 550W Commercial Series

High-efficiency 144-cell bifacial modules delivering 550W output with proven durability for commercial applications. Features PERC technology capturing up to 12% more energy and robust construction withstanding 5400 Pa snow loads. Model: CS6W-550MB-AG with competitive container pricing.

→ Check 550W Panels

Canadian Solar Residential BOB Series 450W-460W

Black-on-Black design optimized for residential rooftops with 108-cell configuration. Available in 445W, 450W, 455W, and 460W variants, all assembled in USA for shorter lead times. Ideal balance of aesthetics, performance, and value with 720 panels per container shipping.

→ Check Residential Panels

Quality Certifications That Matter

ISO 9001:2015 - Quality management systems certification
ISO 14001:2015 - Environmental management systems
OHSAS 18001:2007 - Occupational health and safety standards
DNV Technical Review - Independent validation exceeding industry testing standards
Bloomberg Tier 1 - Bankability rating for financial stability

Proven Durability in Extreme Conditions

Canadian Solar panels are engineered with premium materials including 3.2mm tempered glass with anti-reflective coating, anodized aluminum alloy frames, and IP68-rated junction boxes. Independent testing confirms exceptional durability across extended-duration stress tests, with degradation consistently below 2% even after extreme weather exposure.

Why Customers Choose Canadian Solar

Reddit users consistently praise Canadian Solar as delivering "solid, dependable performance with very little problems." Professional recognition from DNV highlights their commitment to "sustainably manufacturing high-quality PV modules and building a culture of improvement." This combination of customer satisfaction and industry validation makes Canadian Solar an ideal choice for both residential and commercial installations.

Ready to Power Your Future?

Discover the full range of Canadian Solar panels for sale – including bifacial panels and Canadian Solar 450W panels. Check today's Canadian Solar panels price and power your future with one of the most trusted names in solar technology. With proven reliability, competitive pricing, and industry-leading warranties, Canadian Solar delivers the perfect combination of performance and value.

Shop Canadian Solar Panels →

What makes Canadian Solar panels a good choice?

Canadian Solar is a Tier 1 solar panel manufacturer known for its high efficiency, durability, and affordability. The company offers a wide range of monocrystalline, polycrystalline, and bifacial panels, making them suitable for residential, commercial, and utility-scale projects.

What is the warranty on Canadian Solar panels?

Canadian Solar provides a 12- to 25-year product warranty, depending on the model. Additionally, their linear performance warranty guarantees at least 84.8% of the original output after 25 years for most of their modules.

Where are Canadian Solar panels manufactured?

Despite the name, Canadian Solar is a global company headquartered in Canada, but its panels are manufactured in China, Canada, Vietnam, and other locations. The company follows strict quality control and testing standards to ensure durability and performance.

What types of solar panels does Canadian Solar offer?

Canadian Solar produces a variety of high-efficiency monocrystalline (HiKu, HiDM) and polycrystalline solar panels. Their bifacial modules can generate power from both sides, increasing total energy production. They also offer TOPCon and Heterojunction Technology (HJT) panels for even greater efficiency.

Are Canadian Solar panels good for extreme weather conditions?

Yes, Canadian Solar panels are designed to withstand high wind and snow loads (up to 5400 Pa for snow and 4000 Pa for wind). They are also resistant to salt mist, ammonia, and PID degradation, making them ideal for various climates, including coastal and desert environments.

Are Canadian Solar panels compatible with battery storage systems?

Yes, Canadian Solar panels work well with most solar battery storage systems, including lithium-ion and lead-acid batteries. They can be integrated into off-grid and hybrid solar setups when paired with a compatible inverter.

Are Canadian Solar panels Tier 1?

Yes, Canadian Solar is a Tier 1 manufacturer, meaning it has a strong financial background and a proven track record of producing high-quality, reliable solar panels. The company has been a leader in the solar industry for over 20 years and is consistently ranked among the world's top solar panel manufacturers.

FAQ

How much is shipping and how long is delivery?

Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.

What is the difference between low price panels and top price panels?

With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.

What are the dimensions of the panel?

Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.

How long is the warranty on the panel?

In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.

Which panels do you recommend for RV, marine?

We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.

Can this panel be used with a 12v system?

Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.

Can I pick up this panel from your fulfillment center to save on shipping?

Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.

How do I connect these panels?

To achieve the best system efficiency, panels should be connected in series to create higher voltage.

How many panels do I need?

This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.

How do I build a solar system?

Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.

How do solar panels compare?

Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.

Can I build a solar system by myself as a Do It Yourself project?

Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.

Can I connect and charge my solar panel battery directly with the solar panel?

We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.

Can I drill holes into the aluminum frame for mounting?

We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.

Do solar panels require maintenance? Can I wash my solar panel?

Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.

Will my panel produce power in an overcast condition?

While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.

Will my panels produce power if covered with snow?

Solar panels cannot produce electricity if covered with snow.

What is the best direction for a solar panel to face?

The best direction for a solar panel to face is the South

Related materials