--- title: "Canadian Solar CS3U-395MS-AG Solar Panel: Specs & Datasheet | ComparePV" description: "Canadian Solar CS3U-395MS-AG solar panel. Specs: 19.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/canadian-solar-cs3u-395ms-ag" image: "https://comparepv.com/og/panel/canadian-solar-cs3u-395ms-ag.png" updated: 2026-09-11 --- # Canadian Solar CS3U-395MS-AG Warranty pick, heavy for its output 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Canadian Solar - **Model:** CS3U-395MS-AG - **Series:** KuDymond CS3U-MS-AG - **Rated power:** 395 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 395 W | 380 W | Strong - top 12% | | | Module efficiency | 19.90% | 19.90% | Typical | 12,416 | | Power density | 199.1 | 199.0 | Typical | 12,411 | | Temperature coefficient | -0.360 | -0.350 | Typical | 12,425 | | Weight (kg) | 26.5 kg | 21.4 kg | Weak - bottom 10% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.90% | 19.90% | Typical | 12,416 | | Power density | 199.1 | 199.0 | Typical | 12,411 | | Temperature coefficient | -0.360 | -0.350 | Typical | 12,425 | | Weight per kWp | 67.1 | 55.8 | Weak - bottom 10% | 13,325 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Strengths - **30 year performance warranty** - Top 13% of the PERC 350-400 W segment, against a median of 25 yrs. ### Watch out for - **67.1 kg per kWp** - Bottom 10% of the PERC 350-400 W segment, against a median of 55.8. Ranked 13,325th in the whole database. - **Best for:** Residential, commercial, cold-climate and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 395 W - **Efficiency:** 19.90 % - **Voltage at Pmax (Vmp):** 40.60 V - **Current at Pmax (Imp):** 9.73 A - **Open-circuit voltage (Voc):** 48.40 V - **Short-circuit current (Isc):** 10.25 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2000 mm - **Width:** 992 mm - **Thickness:** 35 mm - **Weight:** 26.5 kg - **Area:** 1.98 m2 - **Power density:** 199.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12416 of 14129 | | Power density | 12411 of 14129 | | Temperature coefficient | 12425 of 14129 | | Weight | 13325 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Tier-1 manufacturer with 25 years on market** - Canadian Solar is a bankable (BNEF Tier-1) manufacturer operating since 2001, providing financial credibility for warranty claims even after a series is discontinued. - **30-year linear power warranty** - The 30-year power warranty exceeds the standard 25 years offered by many PERC-segment competitors, improving long-term energy yield predictability for investors. - **High mechanical resistance to snow and wind loads** - The MBB segmented-cell design increases resistance to extreme snow and wind loads, making the module suitable both for pitched roofs in harsh-winter regions and for ground-mounted installations. - **Better partial-shading tolerance** - Cell segmentation and a denser multi-busbar (MBB) grid reduce energy losses under partial shading in real-world operating conditions, not just under STC testing, translating into a genuinely higher annual yield compared to classic 5BB/9BB PERC modules. - **Low power temperature coefficient** - A reduced module operating temperature (NMOT) and low power temperature coefficient stabilize energy yield during summer, when panels heat up the most - important for installations on poorly ventilated roof surfaces. ## Cons - **Production discontinued in 2021** - The KuDymond CS3U-MS-AG series was launched in 2019 and discontinued in 2021, meaning limited availability of spare parts and difficulty replacing individual modules in existing installations. - **Efficiency below segment leader** - The maximum 20.2% efficiency trails the Heliene 108HC M10 SL All Black (20.5% at the same 400 Wp power class), giving a competitor a slightly higher yield on the same roof area. - **Older PERC technology, no N-type cells** - The module relies solely on PERC (P-type) cells, which compared to newer N-type technologies (TOPCon, HJT) exhibit a higher LID/LeTID degradation rate and lower efficiency at high temperatures. ## About this series The KuDymond CS3U-MS-AG series consists of mono-crystalline PERC modules built with multi-busbar (MBB) cell technology, engineered for installations facing demanding weather conditions. By splitting cells into segments and improving current-path connections, the module maintains strong output even under partial shading, meaningfully cutting energy losses in real-world operating conditions rather than just in lab-based STC testing. The frame and cell layout are built to withstand extreme snow and wind loads, making the panel a solid fit for sloped roofs in harsh-winter regions as well as open-field ground-mount installations. A low power temperature coefficient combined with a reduced nominal module operating temperature (NMOT) translates into steadier energy yield during summer, when panels run hottest. The manufacturer places clear emphasis on durability: **better shading tolerance**, **low temperature coefficient**, **high resistance to snow and wind loads**, **minimized micro-crack impact**, and a **30-year linear power warranty** together address the typical pain points of PV installations - degradation, hot spots, and long-term failures. This makes it a solid choice for investors and installers looking for a proven, versatile module for commercial projects and larger residential prosumer systems where long-term reliability matters most. ## Notable figures - At 19.9% efficiency, this panel is on par with typical \*\*PERC 0-400W\*\* modules - 199.1 W/m² power density - 4.9 W/m² more than \*\*PERC 0-400W\*\* median (194.2 W/m²), more power per roof area - At -0.36%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - Weight of 26.5 kg is 6.0 kg above \*\*PERC 0-400W\*\* median (20.5 kg) - verify structural support - Ranked #12416 out of 14129 panels for efficiency in the database ## Questions ### Is the Canadian Solar KuDymond CS3U-MS-AG series still available for purchase? The CS3U-MS-AG series has been discontinued from the manufacturer's current lineup and replaced by newer TOPCon-based models. Panels may still be available through distributors as remaining stock or on the secondary market. It's worth asking the seller about the production date and confirming whether the manufacturer's warranty still applies despite the discontinued status. ### What warranty comes with the CS3U-MS-AG panels and does it cover power degradation? The manufacturer provides a 12-year product warranty and a 30-year linear power output warranty. This means the panel should retain a significant portion of its rated power after 30 years, with degradation spread evenly over time rather than dropping sharply. This is one of the longer warranty periods offered by Tier 1 manufacturers. ### How does the MBB technology in the CS3U-MS-AG differ from panels with fewer busbars? The multi-busbar (MBB) technology used in the KuDymond series increases the density of current-carrying paths across the PERC cell surface. This gives current more routes to flow, reducing losses from microcracks and partial shading. In practice, the panel maintains higher efficiency in real-world operating conditions, not just in laboratory STC tests. ### Are the KuDymond CS3U-MS-AG panels suitable for installations in regions with heavy snow loads? Yes, this series was engineered to withstand extreme mechanical loads, including snow and wind. Thanks to its reinforced frame, the panels perform well both on pitched roofs in regions with harsh winters and in open ground-mounted installations exposed to strong wind gusts. ### What is the maximum power output of the CS3U-MS-AG module and what installations is it suited for? The panels reach a maximum power output of up to 400 Wp using monocrystalline PERC cells. This power rating makes them a versatile choice for both larger residential prosumer installations and commercial projects, where power-to-area ratio and long-term reliability, backed by a 30-year power warranty, matter most. ### How well do Canadian Solar KuDymond panels handle heat and high operating temperatures? Yes, this series features a low power temperature coefficient and a reduced Nominal Module Operating Temperature (NMOT). This results in a smaller efficiency drop during hot weather compared to standard panels, translating into more stable energy yield in summer, when solar irradiance and ambient temperature are at their highest. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Canadian_Solar-Datasheet-KuDymond_CS3U-MS-AG_EN-d176abb66af2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | +45 W, cooler, +3.2 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -35 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | -15 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +3.1 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +3.1 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | -15 W, lighter, +3.1 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +45 W, cooler, +3.0 pp | | [Luxor Solar LX-440M/182-108+](https://comparepv.com/panel/luxor-solar-lx-440m-182-108) | 440 W | Cooler, lighter, +3.0 pp | | [Canadian Solar CS3U-355P](https://comparepv.com/panel/canadian-solar-cs3u-355p) | 355 W | -40 W, -2.0 pp, -5 yr warranty | | [Canadian Solar CS3U-360P](https://comparepv.com/panel/canadian-solar-cs3u-360p) | 360 W | Lighter, -1.7 pp, -5 yr warranty | | [Canadian Solar CS3U-365P](https://comparepv.com/panel/canadian-solar-cs3u-365p) | 365 W | Lighter, -1.5 pp, -5 yr warranty | | [Canadian Solar CS3U-370P](https://comparepv.com/panel/canadian-solar-cs3u-370p) | 370 W | Lighter, -1.2 pp, -5 yr warranty | | [Canadian Solar CS3U-375P](https://comparepv.com/panel/canadian-solar-cs3u-375p) | 375 W | Lighter, -1.0 pp, -5 yr warranty | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +4.1 pp, +10 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +3.8 pp, +10 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +3.6 pp, +10 yr warranty | --- Source: https://comparepv.com/panel/canadian-solar-cs3u-395ms-ag Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.