BYD MSBK-33 675
BYD MSBK-33 675
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BYD MSBK-33 675

BYD MSBK-33 675

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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.

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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.

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

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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.

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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.

BYD MSBK-33 675W Mono Bifacial Monocrystalline Solar Panel

Model MSBK-33 675 | Mono Bifacial Dual Glass | 132 Monocrystalline Cells | Bifacial | 1500V System Voltage

675 W
Max Power Output
21.73%
Module Efficiency
132
Monocrystalline Cells

Product Overview

The BYD MSBK-33 675W Mono Bifacial monocrystalline solar panel delivers high power density for utility, commercial, and large rooftop projects. This advanced dual glass module combines 210 mm mono cells with bifacial technology to harvest energy from both sides of the panel. Its maximum efficiency of up to 21.73 percent helps more energy be produced from the same array area. The robust glass glass structure and anodized aluminum frame support demanding mechanical loads in harsh environments. A 1500V DC system rating provides design flexibility for modern large scale systems. This panel range covers 645 to 675 W, so system designers can match string sizing with ease. Engineers gain predictable lifetime performance thanks to a low annual degradation rate and strong linear power warranty. With proven BYD quality, this module is a reliable choice where long term energy yield is critical. The MSBK-33 675W panel is engineered for compatibility with mainstream inverters and trackers, supporting efficient project integration.

Key Benefits

High power output for fewer modules: Up to 675 W per module reduces required panel count and BOS components. This helps installation costs be lowered and simplifies array design.

Excellent module efficiency: Efficiency up to 21.73 percent maximizes energy generation from limited roof or ground space. Site yield can be increased without expanding the footprint.

Bifacial energy gain: The bifacial dual glass design captures reflected light from the rear side. Power gain of around 5 to 25 percent is achievable with suitable albedo and layout.

Strong mechanical performance: A high strength aluminum frame and dual glass construction withstand heavy snow and wind loads. Long term reliability is supported for utility and commercial sites.

Bankable long term warranty: A 12 year product warranty and 30 year power warranty support investment confidence. The linear degradation profile helps long term yield be forecast accurately.

Wide application range: High compatibility with mainstream inverters and trackers supports flexible system design. The module performs well in high temperature, low light, and NH3 rich environments.

How It Works

This BYD MSBK-33 675W Mono Bifacial monocrystalline solar panel converts sunlight into usable DC electricity through high efficiency mono cells. The panel uses a dual glass encapsulation that protects the cells while letting light reach both front and rear surfaces. Under standard test conditions the module reaches up to 675 W output with a Vmpp of about 38.31 V and an Impp of 17.63 A. In real world conditions the NMOT values guide expected power, with around 505.6 W at nominal operating temperature. The bifacial factor allows part of the irradiance reflected from the ground or roof to be harvested on the rear side. This increases energy yield in installations that use bright surfaces or elevated mounting structures. The panel connects into strings within a 1500 V DC system, feeding a compatible inverter that converts the DC energy into AC power. The low temperature coefficients help power loss be minimized in hot climates, improving performance across seasons. Over its lifetime the module follows a controlled degradation curve that is backed by BYD’s linear power warranty.

Front side monocrystalline cell conversion: The module uses 210 mm monocrystalline cells spread over 132 cell positions. These cells absorb direct sunlight on the front surface and convert it into DC electricity efficiently.

Rear side bifacial generation: The transparent dual glass structure exposes the rear side of the cells to reflected light. Light from bright ground, rooftops, or nearby surfaces is captured to deliver additional power gain.

Thermal and low light performance: A low temperature coefficient of Pmax around −0.328 percent per degree Celsius limits power loss in heat. Optimized cell and glass configuration also support strong output under haze and cloudy conditions.

Technical Specifications

Manufacturer BYD Company Limited
Country of Origin China
Module Type MSBK-33 675
Technology Mono Bifacial Dual Glass, 210 mm monocrystalline cells
Power Range 645 Wp to 675 Wp
Maximum Power (Pmax) at STC 675 Wp
Module Efficiency at STC Up to 21.73%
Power Tolerance 0 ~ +5 W (0 ~ +0.5%)
Open Circuit Voltage (Voc) at STC 46.11 V
Short Circuit Current (Isc) at STC 18.38 A
Voltage at Maximum Power (Vmpp) at STC 38.31 V
Current at Maximum Power (Impp) at STC 17.63 A
Maximum Power (Pmax) at NMOT 505.6 Wp
Open Circuit Voltage (Voc) at NMOT 43.2 V
Short Circuit Current (Isc) at NMOT 14.82 A
Voltage at Maximum Power (Vmpp) at NMOT 35.9 V
Current at Maximum Power (Impp) at NMOT 14.09 A
Nominal Module Operating Temperature (NMOT) 45 ± 2 °C
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax −0.328 % / °C
Temperature Coefficient of Voc −0.254 % / °C
Temperature Coefficient of Isc +0.041 % / °C
Maximum System Voltage 1500 V DC
Maximum Series Fuse Rating 35 A
Fire Safety Class Class C
Bifacial Factor 70 ± 5%
Panel Dimensions (H × W × D) 2384 × 1303 × 35 mm
Weight 38.7 kg
Cell Type and Count 132 monocrystalline bifacial cells, 210 mm wafer size
Glass Type and Thickness Dual glass with anti reflection coating, 2 mm thickness
Frame Type High strength anodized aluminium frame
Junction Box and Diodes Junction box with 3 bypass diodes, IP rated enclosure

Certifications & Compliance

Certifications: IEC 61215-1, IEC 61215-1-1, IEC 61215-2, IEC 61730-1, IEC 61730-2, UL 61730-1, UL 61730-2.
Inverter Compatibility: Designed for excellent compatibility with mainstream 1500V string and central inverters, as well as leading single axis tracker systems.
Environmental: Suitable for harsh environments including NH3 exposure, high temperature sites, and low light regions, with dual glass construction for enhanced durability.
Warranty: 12 year product warranty and 30 year linear power warranty, with final year power output at approximately 83.5 percent of the initial rated power, subject to BYD warranty terms.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

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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.

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.

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Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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