Heckert Solar 375
Heckert Solar 375
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Heckert Solar 375

Heckert Solar 375

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Get yours today!

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9+ sold

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Lifetime Customer Support

Unlimited lifetime support, always available.

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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.

Heckert Solar NeMo 3.0 375 W Monocrystalline PV-Module Solar Panel

Model NeMo 3.0 120 M | Monocrystalline | 120 Half-Cell | Monofacial | 1000V System Voltage

375 Wp
Max Power Output
19.8%
Module Efficiency
120 Cells
Monocrystalline Half-Cell

Product Overview

The Heckert Solar 375 monocrystalline solar panel is a high performance German made module designed for reliable long term energy production. This 375 Wp NeMo 3.0 120 M panel delivers strong output in a compact footprint with an efficiency of up to 19.8 percent. It suits residential rooftops, commercial systems and small industrial arrays where dependable power and robust construction are essential. With a maximum system voltage of 1000 V, it integrates easily into modern string inverter setups and can be combined in flexible array designs. The module uses 120 monocrystalline half cells with advanced microCELL TLS processing to increase mechanical strength and performance stability over time. Homeowners and installers benefit from its balanced blend of power, efficiency and build quality. Backed by a standard 15 year product warranty and extended performance guarantees, this panel offers a bankable choice for long term solar investments.

Key Benefits

High power density: 375 Wp rated output and up to 19.8 percent module efficiency provide strong generation from limited roof space.

German engineering and manufacturing: Made in Germany with modern production technology for consistent quality, reliable performance and tight tolerances.

Robust long term performance: Power warranty ensures 90 percent output after 10 years and 80 percent after 25 years with a low 0.8 percent annual degradation rate.

Optimized electrical characteristics: A Vmpp of 35.6 V and Impp of 10.58 A allow efficient string design and broad inverter compatibility.

Durable construction for harsh conditions: Anti reflection glass, anodized aluminium frame and IP68 junction box enhance weather resistance and mechanical stability.

Sustainable production: Manufacturing uses electricity from Heckert Solar’s own PV plants and additional green power to reduce environmental impact.

How It Works

This Heckert Solar 375 monocrystalline module converts sunlight into usable electrical energy through high quality silicon solar cells. Each of the 120 half cut monocrystalline cells generates direct current when photons strike the semiconductor junction. The cells are wired in an optimized series and parallel layout to deliver a maximum power output of 375 Wp under standard test conditions. An integrated junction box with three bypass diodes manages current flow and helps reduce the impact of partial shading on the array. The generated DC power is routed through MC4 connectors and 4 mm² solar cables to the system inverter. The inverter then transforms the DC electricity into grid compatible alternating current for homes or businesses. Thermal and electrical characteristics are engineered to remain stable at typical operating temperatures around 42 °C, which helps maintain generation efficiency throughout the year.

Monocrystalline half cell conversion: High grade monocrystalline silicon cells absorb sunlight and create an electric field at the p n junction. The half cut layout reduces electrical losses and improves shade tolerance, which supports higher yield in real world conditions.

Power optimization and current flow: The module operates at a Vmpp of 35.6 V and an Impp of 10.58 A to deliver up to 375 Wp. Bypass diodes inside the IP68 junction box limit hotspot risk and allow current to route around shaded cell strings to protect the module.

Thermal management and stability: Temperature coefficients of −0.343 percent per °C for Pmax and −0.263 percent per °C for Voc control performance at higher cell temperatures. A coefficient of 0.033 percent per °C for Isc supports stable current as operating temperature rises, which improves annual energy yield.

Technical Specifications

Panel Type Monocrystalline PV module
Model Number NeMo 3.0 120 M 375
Nominal Power Range 375 Wp to 380 Wp
Rated Maximum Power (Pmax) 375 Wp
Module Efficiency 19.8 % (up to 20.0 % for 380 Wp class)
Power Tolerance 0 to +1 %
Voltage at Maximum Power (Vmpp) 35.6 V
Current at Maximum Power (Impp) 10.58 A
Open Circuit Voltage (Voc) 41.24 V
Short Circuit Current (Isc) 11.11 A
Nominal Module Operating Temperature (NMOT) 42 °C
Temperature Coefficient of Pmax −0.343 % / °C
Temperature Coefficient of Voc −0.263 % / °C
Temperature Coefficient of Isc 0.033 % / °C
Maximum System Voltage (DC) 1000 V DC
Reverse Current Maximum 20 A
Cell Count and Type 120 monocrystalline half cells, microCELL TLS
Panel Dimensions (H × W × D) 1790 mm × 1060 mm × 35 mm
Weight 20.5 kg
Front Glass 3.2 mm tempered glass with anti reflection coating
Frame Material Anodized aluminium frame
Junction Box Protection Class IP68 with 3 bypass diodes
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm² solar cable
Cable Length 1150 mm
Certified Snow Load Front design 5400 Pa, test 8100 Pa; back design 1600 Pa, test 2400 Pa
Fire Resistance Class Class C according to ANSI/UL 790 and IEC 61730
Manufacturer Heckert Solar GmbH, Germany

Certifications & Compliance

Certifications: VDE certified module with tested snow loads, fire resistance Class C under ANSI/UL 790 and IEC 61730 and compliant construction for modern PV systems.
Inverter Compatibility: Suitable for most string and hybrid inverters rated for 1000 V DC systems when designed and installed by qualified professionals.
Environmental: Manufactured in Germany using electricity from Heckert Solar’s own PV arrays and additional green power to support sustainable production practices.
Warranty: 15 year standard product warranty on materials and workmanship plus linear performance warranty of 10 years at 90 percent output and 25 years at 80 percent output with a typical annual degradation rate of 0.8 percent.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
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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.

Heckert Solar NeMo 3.0 375 W Monocrystalline PV-Module Solar Panel

Model NeMo 3.0 120 M | Monocrystalline | 120 Half-Cell | Monofacial | 1000V System Voltage

375 Wp
Max Power Output
19.8%
Module Efficiency
120 Cells
Monocrystalline Half-Cell

Product Overview

The Heckert Solar 375 monocrystalline solar panel is a high performance German made module designed for reliable long term energy production. This 375 Wp NeMo 3.0 120 M panel delivers strong output in a compact footprint with an efficiency of up to 19.8 percent. It suits residential rooftops, commercial systems and small industrial arrays where dependable power and robust construction are essential. With a maximum system voltage of 1000 V, it integrates easily into modern string inverter setups and can be combined in flexible array designs. The module uses 120 monocrystalline half cells with advanced microCELL TLS processing to increase mechanical strength and performance stability over time. Homeowners and installers benefit from its balanced blend of power, efficiency and build quality. Backed by a standard 15 year product warranty and extended performance guarantees, this panel offers a bankable choice for long term solar investments.

Key Benefits

High power density: 375 Wp rated output and up to 19.8 percent module efficiency provide strong generation from limited roof space.

German engineering and manufacturing: Made in Germany with modern production technology for consistent quality, reliable performance and tight tolerances.

Robust long term performance: Power warranty ensures 90 percent output after 10 years and 80 percent after 25 years with a low 0.8 percent annual degradation rate.

Optimized electrical characteristics: A Vmpp of 35.6 V and Impp of 10.58 A allow efficient string design and broad inverter compatibility.

Durable construction for harsh conditions: Anti reflection glass, anodized aluminium frame and IP68 junction box enhance weather resistance and mechanical stability.

Sustainable production: Manufacturing uses electricity from Heckert Solar’s own PV plants and additional green power to reduce environmental impact.

How It Works

This Heckert Solar 375 monocrystalline module converts sunlight into usable electrical energy through high quality silicon solar cells. Each of the 120 half cut monocrystalline cells generates direct current when photons strike the semiconductor junction. The cells are wired in an optimized series and parallel layout to deliver a maximum power output of 375 Wp under standard test conditions. An integrated junction box with three bypass diodes manages current flow and helps reduce the impact of partial shading on the array. The generated DC power is routed through MC4 connectors and 4 mm² solar cables to the system inverter. The inverter then transforms the DC electricity into grid compatible alternating current for homes or businesses. Thermal and electrical characteristics are engineered to remain stable at typical operating temperatures around 42 °C, which helps maintain generation efficiency throughout the year.

Monocrystalline half cell conversion: High grade monocrystalline silicon cells absorb sunlight and create an electric field at the p n junction. The half cut layout reduces electrical losses and improves shade tolerance, which supports higher yield in real world conditions.

Power optimization and current flow: The module operates at a Vmpp of 35.6 V and an Impp of 10.58 A to deliver up to 375 Wp. Bypass diodes inside the IP68 junction box limit hotspot risk and allow current to route around shaded cell strings to protect the module.

Thermal management and stability: Temperature coefficients of −0.343 percent per °C for Pmax and −0.263 percent per °C for Voc control performance at higher cell temperatures. A coefficient of 0.033 percent per °C for Isc supports stable current as operating temperature rises, which improves annual energy yield.

Technical Specifications

Panel Type Monocrystalline PV module
Model Number NeMo 3.0 120 M 375
Nominal Power Range 375 Wp to 380 Wp
Rated Maximum Power (Pmax) 375 Wp
Module Efficiency 19.8 % (up to 20.0 % for 380 Wp class)
Power Tolerance 0 to +1 %
Voltage at Maximum Power (Vmpp) 35.6 V
Current at Maximum Power (Impp) 10.58 A
Open Circuit Voltage (Voc) 41.24 V
Short Circuit Current (Isc) 11.11 A
Nominal Module Operating Temperature (NMOT) 42 °C
Temperature Coefficient of Pmax −0.343 % / °C
Temperature Coefficient of Voc −0.263 % / °C
Temperature Coefficient of Isc 0.033 % / °C
Maximum System Voltage (DC) 1000 V DC
Reverse Current Maximum 20 A
Cell Count and Type 120 monocrystalline half cells, microCELL TLS
Panel Dimensions (H × W × D) 1790 mm × 1060 mm × 35 mm
Weight 20.5 kg
Front Glass 3.2 mm tempered glass with anti reflection coating
Frame Material Anodized aluminium frame
Junction Box Protection Class IP68 with 3 bypass diodes
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm² solar cable
Cable Length 1150 mm
Certified Snow Load Front design 5400 Pa, test 8100 Pa; back design 1600 Pa, test 2400 Pa
Fire Resistance Class Class C according to ANSI/UL 790 and IEC 61730
Manufacturer Heckert Solar GmbH, Germany

Certifications & Compliance

Certifications: VDE certified module with tested snow loads, fire resistance Class C under ANSI/UL 790 and IEC 61730 and compliant construction for modern PV systems.
Inverter Compatibility: Suitable for most string and hybrid inverters rated for 1000 V DC systems when designed and installed by qualified professionals.
Environmental: Manufactured in Germany using electricity from Heckert Solar’s own PV arrays and additional green power to support sustainable production practices.
Warranty: 15 year standard product warranty on materials and workmanship plus linear performance warranty of 10 years at 90 percent output and 25 years at 80 percent output with a typical annual degradation rate of 0.8 percent.

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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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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