Home
300-399W Solar Panels
Canadian Solar KuMax 345W Solar Panel (30 modules per pallet) - CS3U-345P-Pallet

Available to Order

Order today — we confirm lead time at checkout

Volume Pricing

Call 888-876-0007 for a pallet-quote

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

Canadian Solar KuMax 345W Solar Panel (30 modules per pallet) - CS3U-345P-Pallet

Legacy Model

Canadian Solar KuMax 345W Solar Panel (30 modules per pallet) - CS3U-345P-Pallet

Trusted by 1,000s of Contractors & Installers

Available to Order

SKU PES-SPS-SPL-0005

OEM Authorized Dealer Full OEM Warranty

$6,094.00 USD

$ $6,094.00 USD

Sold out

Quantity

Sold by the pallet (30) — PowerLink & trade: request 10+

Your quantity 1 pcs

System size —

Est. order total —

Specsheet

Multi-unit or project order?Get a Volume Quote →

Offloading overstock or decommissioned gear? We buy surplus equipment →

Secure checkout · Wire/ACH accepted on quotes · Freight arranged for you

Ships via LTL freight — palletized, liftgate available. Our team confirms freight details within 1 business day.

SKU: PES-SPS-SPL-0005
MPN: CS3U-345P-Pallet
Wattage: 345W
Min purchase: 10 pcs

Complete the job

Compatible gear contractors pair with this item

Microinverter APsystems QT2 1.7kW 3-Ph Microinverter 124062

$407.00

Racking kit Racking Hardware Kit — 20-panel System

$1,596.43

PV wire Omni Cable 8 AWG RHW-2 PV Wire Red 2000V

$1,220.00

Secure Payment Methods

Available to Order

Order today — we confirm lead time at checkout

Volume Pricing

Call 888-876-0007 for a pallet-quote

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

Request a Free Quote

Got Questions? We’re Here to Help!

Our support team is ready to assist you with product guidance, order details, or any questions you might have.

(888) 876-0007

Instant Live Chat

Mon-Fri 10am-6pm EST

View full details

Canadian Solar KuMax 345W Solar Panel (30 modules per pallet) - CS3U-345P-Pallet $6,094.00

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Canadian Solar CS3U-345P-Pallet

Canadian Solar KuMax 345W Solar Panel for Efficient Energy

This high-efficiency solar panel by Canadian Solar, featuring their innovative black silicon cell technology, is perfect for those seeking powerful and reliable energy solutions. The CS3U-345P model offers up to 345 watts of energy, providing substantial power output and efficiency. With enhanced durability and performance, these panels are designed for seamless integration into various energy systems.

Product Features

Enhanced Power Output

Canadian Solar's CS3U-345P offers higher power classes for equivalent module sizes, perfect for maximizing energy production in limited spaces.

Exceptional Module Efficiency

The panel boasts a high module efficiency of up to 18.15%, ensuring you get more power per panel.

Optimal Temperature Performance

Designed with a low temperature coefficient (Pmax) of -0.38% per °C, these panels maintain performance under high temperatures.

Robust Design

Engineered to withstand heavy snow loads up to 5400 Pa and wind loads up to 2400 Pa, making it suitable for various environmental conditions.

Innovative LIC Technology

Utilizes Low Internal Current module technology, reducing power loss and enhancing overall energy efficiency.

How It Works

The CS3U-345P solar panel is designed for efficiency and reliability, leveraging advanced technologies to optimize energy conversion and performance. The system is simple to install and suitable for a range of applications, providing clean and sustainable energy solutions.

Panel Integration

This solar panel integrates easily into various energy systems, maximizing energy yield through its smart design and technology.

Advanced Cell Technology

Features black silicon cell technology that enhances the panels ability to capture and convert sunlight.

Durable Construction

Built with a robust anodized aluminum frame and tempered glass, ensuring long-term durability and performance.

Specifications

Nominal Max. Power (Pmax)	345 W
Cell Type	Poly-crystalline
Opt. Operating Voltage (Vmp)	39.0 V
Opt. Operating Current (Imp)	8.86 A
Open Circuit Voltage (Voc)	46.4 V
Short Circuit Current (Isc)	9.43 A
Module Efficiency	17.39%
Dimensions	2000 Ë£ 992 Ë£ 40 mm
Weight	22.6 kg
Operating Temperature	-40°C ~ +85°C

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Canadian Solar CS3U-345P-Pallet

Canadian Solar KuMax 345W Solar Panel for Efficient Energy

Product Features

Enhanced Power Output

Canadian Solar's CS3U-345P offers higher power classes for equivalent module sizes, perfect for maximizing energy production in limited spaces.

Exceptional Module Efficiency

The panel boasts a high module efficiency of up to 18.15%, ensuring you get more power per panel.

Optimal Temperature Performance

Designed with a low temperature coefficient (Pmax) of -0.38% per °C, these panels maintain performance under high temperatures.

Robust Design

Engineered to withstand heavy snow loads up to 5400 Pa and wind loads up to 2400 Pa, making it suitable for various environmental conditions.

Innovative LIC Technology

Utilizes Low Internal Current module technology, reducing power loss and enhancing overall energy efficiency.

How It Works

Panel Integration

This solar panel integrates easily into various energy systems, maximizing energy yield through its smart design and technology.

Advanced Cell Technology

Features black silicon cell technology that enhances the panels ability to capture and convert sunlight.

Durable Construction

Built with a robust anodized aluminum frame and tempered glass, ensuring long-term durability and performance.

Specifications

Nominal Max. Power (Pmax)	345 W
Cell Type	Poly-crystalline
Opt. Operating Voltage (Vmp)	39.0 V
Opt. Operating Current (Imp)	8.86 A
Open Circuit Voltage (Voc)	46.4 V
Short Circuit Current (Isc)	9.43 A
Module Efficiency	17.39%
Dimensions	2000 Ë£ 992 Ë£ 40 mm
Weight	22.6 kg
Operating Temperature	-40°C ~ +85°C

//www.portlandiaelectric.supply/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12.gif

Prepare for Anything

From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.

Solar Power Made Easy

Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.

Secure Your Independence

Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.

Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

Coll A