Home
Best seller
GoodWe MS G3 US Series PV string Inverter w/ EZLink LAN - GW11K4-MS-US30

In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In Stock

SKU PES-SPS-SIV-0675

GoodWe MS G3 US Series PV string Inverter w/ EZLink LAN - GW11K4-MS-US30

$2,176.26 USD

$ $2,176.26 USD

Sale Sold out

Quantity

Secure Payment Methods

In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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

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.

GoodWe MS-US (G3) — GW11K4-MS-US30, 11.4 kW PV String Inverter w/ EZLink LAN

The GoodWe MS G3 US Series PV string Inverter - GW11K4-MS-US30 is a high-efficiency, grid-tied solar inverter designed to deliver reliable performance for residential and light commercial solar power systems. Engineered with advanced safety features, smart monitoring, and flexible installation options, this inverter ensures optimal energy conversion while meeting modern U.S. grid standards. With compact design and robust internal components, it is built to perform consistently even in demanding operating environments.

MS-US Series single-phase inverter with EZLink (IEEE 2030.5) & LAN/Wi-Fi/Bluetooth connectivity, integrated AFCI and Rapid Shutdown, and Type 4X (IP66) enclosure. Built-in optimization; up to 16 A per string and 160% DC oversizing.

Technical Specifications — GW11K4-MS-US30

PV Input
Max. input power	18,240 W
Max. input voltage	600 Vdc
MPPT voltage @ nominal power (240 V)	250–500 V
MPPT voltage @ nominal power (208 V)	217–500 V
Start-up voltage	80 V
Nominal input voltage (240 V / 208 V)	380 V / 330 V
Max input current per MPPT	16 A
Max short-circuit current per MPPT	23.4 A
MPPT trackers / Strings per MPPT	3 / 1
AC Output
Nominal output power (240 V / 208 V)	11,400 W / 9,880 W
Nominal apparent power (240 V / 208 V)	11,400 VA / 9,880 VA
Max AC active power (240 V / 208 V)	11,400 W / 9,880 W
Max AC apparent power (240 V / 208 V)	11,400 VA / 9,880 VA
Nominal voltage	240 / 208 V
Grid frequency	60 Hz
Max output current	47.5 A
Power factor	~1 (0.8 lead … 0.8 lag adjustable)
THD	< 3%
Efficiency
Max efficiency	97.8%
CEC efficiency (240 V / 208 V)	97.0% / 96.5%
Protection & Safety
Integrated functions	PV string current, insulation & residual current monitoring; reverse-polarity; anti-islanding; AC overcurrent/short-circuit/overvoltage; DC switch; AFCI; Rapid Shutdown
Surge protection	DC SPD Type III (Type II optional); AC SPD Type III (Type II optional)
General
Operating temperature	−31 to +140 °F (−35 to +60 °C); derate ≥ 113 °F (45 °C)
Storage temperature	−40 to +158 °F (−40 to +70 °C)
Relative humidity	0 – 95%
Max operating altitude	9,842 ft (3,000 m)
Cooling	Natural convection (internal fan air circulation)
User interface	LED, WLAN + App
Communications / Protocol	RS485; Wi-Fi + LAN + Bluetooth; 4G (optional) / Modbus-RTU (SunSpec)
Dimensions (W × H × D)	19.2 × 26.4 × 7.8 in (487 × 670 × 199 mm)
Weight	55.1 lb (25.0 kg)
Noise	< 35 dB
Topology	Non-isolated
Night self-consumption	< 5 W
Ingress protection	Type 4X (IP66)
Certifications / Grid Standards
Standards	UL1741 (incl. SB & CRD), UL1699B, CSA C22.2; IEEE 1547/1547.1-2020; California Rule 21; EMC: FCC Part 15 Class B

Connectivity & EZLink

Commission via Bluetooth/PV Master; monitor over LAN/Wi-Fi (optional 4G). 120/240 V split-phase and 208 V delta supported. EZLink (IEEE 2030.5) module enables utility-compliant communications.

Advanced Design for Reliable Solar Performance

The GoodWe MS G3 US Series PV string Inverter - GW11K4-MS-US30 features a transformerless topology that enhances conversion efficiency and reduces energy losses. Its compact and lightweight design makes installation faster and more cost-effective, whether mounted indoors or outdoors. The inverter supports a wide MPPT voltage range, allowing it to adapt easily to different solar array configurations and maximize power generation throughout the day.

With dual MPPT trackers, the inverter efficiently handles arrays installed on different roof orientations or shading conditions. This ensures improved yield and stable output even when environmental factors vary.

High Efficiency and Smart Power Optimization

Designed for maximum energy harvest, the inverter offers high peak efficiency, enabling solar systems to convert more DC power into usable AC electricity. Intelligent MPPT algorithms continuously track the optimal operating point of solar panels, improving overall system productivity.

The GoodWe MS G3 US Series PV string Inverter w/ EZLink LAN - GW11K4-MS-US30 also supports rapid power response, ensuring stable output during grid fluctuations. This makes it an excellent choice for users seeking consistent performance and long-term energy savings.

Built-In Safety and Grid Compliance

Safety is a core feature of the GoodWe MS G3 US Series PV string Inverter - GW11K4-MS-US30. It is equipped with integrated AFCI (Arc Fault Circuit Interruption) protection, DC reverse polarity protection, ground fault detection, and anti-islanding functionality. These features help safeguard both the system and connected equipment.

The inverter complies with major U.S. grid standards, including UL 1741 and IEEE 1547, ensuring smooth grid interconnection and regulatory acceptance. This compliance makes it suitable for a wide range of utility requirements across different regions.

Seamless Connectivity with EZLink LAN

One of the standout features is the integrated EZLink LAN communication module. The GoodWe MS G3 US Series PV string Inverter w/ EZLink LAN - GW11K4-MS-US30 enables fast and stable data transmission for system monitoring and performance analysis. Users can easily track real-time energy production, system health, and historical data through compatible monitoring platforms.

This smart connectivity simplifies maintenance, allows quicker troubleshooting, and enhances long-term system management without the need for complex external communication devices.

Durable Construction for Long-Term Use

Built with high-quality components and an IP-rated enclosure, the inverter is designed to withstand harsh environmental conditions such as dust, humidity, and temperature variations. Passive cooling technology reduces noise and increases reliability by minimizing the number of moving parts.

The inverter’s durable design ensures a long operational lifespan, making it a dependable solution for solar installations that demand consistent performance year after year.

Ideal Applications and Installation Flexibility

The GoodWe MS G3 US Series PV string Inverter - GW11K4-MS-US30 is ideal for residential rooftops, small commercial buildings, and distributed solar systems. Its flexible string configuration and wide voltage compatibility make it suitable for new installations as well as system upgrades.

The simplified wiring layout and intuitive interface reduce installation time and help installers complete projects efficiently while maintaining high safety standards.

Why Choose the GoodWe MS G3 US Series PV String Inverter?

Choosing the GoodWe MS G3 US Series PV string Inverter - GW11K4-MS-US30 means investing in efficiency, safety, and smart energy management. Its combination of advanced MPPT technology, built-in safety protections, and EZLink LAN connectivity delivers a future-ready solar solution that supports stable power generation and simplified monitoring.

This inverter is designed for users who value performance consistency, regulatory compliance, and long-term reliability in a compact and modern solar inverter solution.

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?

GoodWe MS-US (G3) — GW11K4-MS-US30, 11.4 kW PV String Inverter w/ EZLink LAN

Technical Specifications — GW11K4-MS-US30

PV Input
Max. input power	18,240 W
Max. input voltage	600 Vdc
MPPT voltage @ nominal power (240 V)	250–500 V
MPPT voltage @ nominal power (208 V)	217–500 V
Start-up voltage	80 V
Nominal input voltage (240 V / 208 V)	380 V / 330 V
Max input current per MPPT	16 A
Max short-circuit current per MPPT	23.4 A
MPPT trackers / Strings per MPPT	3 / 1
AC Output
Nominal output power (240 V / 208 V)	11,400 W / 9,880 W
Nominal apparent power (240 V / 208 V)	11,400 VA / 9,880 VA
Max AC active power (240 V / 208 V)	11,400 W / 9,880 W
Max AC apparent power (240 V / 208 V)	11,400 VA / 9,880 VA
Nominal voltage	240 / 208 V
Grid frequency	60 Hz
Max output current	47.5 A
Power factor	~1 (0.8 lead … 0.8 lag adjustable)
THD	< 3%
Efficiency
Max efficiency	97.8%
CEC efficiency (240 V / 208 V)	97.0% / 96.5%
Protection & Safety
Integrated functions	PV string current, insulation & residual current monitoring; reverse-polarity; anti-islanding; AC overcurrent/short-circuit/overvoltage; DC switch; AFCI; Rapid Shutdown
Surge protection	DC SPD Type III (Type II optional); AC SPD Type III (Type II optional)
General
Operating temperature	−31 to +140 °F (−35 to +60 °C); derate ≥ 113 °F (45 °C)
Storage temperature	−40 to +158 °F (−40 to +70 °C)
Relative humidity	0 – 95%
Max operating altitude	9,842 ft (3,000 m)
Cooling	Natural convection (internal fan air circulation)
User interface	LED, WLAN + App
Communications / Protocol	RS485; Wi-Fi + LAN + Bluetooth; 4G (optional) / Modbus-RTU (SunSpec)
Dimensions (W × H × D)	19.2 × 26.4 × 7.8 in (487 × 670 × 199 mm)
Weight	55.1 lb (25.0 kg)
Noise	< 35 dB
Topology	Non-isolated
Night self-consumption	< 5 W
Ingress protection	Type 4X (IP66)
Certifications / Grid Standards
Standards	UL1741 (incl. SB & CRD), UL1699B, CSA C22.2; IEEE 1547/1547.1-2020; California Rule 21; EMC: FCC Part 15 Class B

Connectivity & EZLink

Commission via Bluetooth/PV Master; monitor over LAN/Wi-Fi (optional 4G). 120/240 V split-phase and 208 V delta supported. EZLink (IEEE 2030.5) module enables utility-compliant communications.

Advanced Design for Reliable Solar Performance

High Efficiency and Smart Power Optimization

Built-In Safety and Grid Compliance

Seamless Connectivity with EZLink LAN

This smart connectivity simplifies maintenance, allows quicker troubleshooting, and enhances long-term system management without the need for complex external communication devices.

Durable Construction for Long-Term Use

The inverter’s durable design ensures a long operational lifespan, making it a dependable solution for solar installations that demand consistent performance year after year.

Ideal Applications and Installation Flexibility

The simplified wiring layout and intuitive interface reduce installation time and help installers complete projects efficiently while maintaining high safety standards.

Why Choose the GoodWe MS G3 US Series PV String Inverter?

This inverter is designed for users who value performance consistency, regulatory compliance, and long-term reliability in a compact and modern solar inverter solution.

FAQs

Got a question? We are here to answer

//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