What is the Solis 40KW-US-F-LSW inverter used for?

The Solis 40KW-US-F-LSW inverter is built for commercial and industrial solar systems that require stable 3-phase, 480V AC output and high energy conversion efficiency.

Does the Solis 40kW 3-phase inverter support multiple MPPT inputs?

Yes, it includes four MPPT inputs, allowing the system to manage uneven sunlight, shading, or mixed panel orientations while maintaining strong energy production.

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Solis 40kW 3-Phase 4-MPPT W/Fan 480VAC String Inverter with 10 Year Standard Warranty - 40K-US-F-LSW

Solis 40kW 3-Phase 4-MPPT W/Fan 480VAC String Inverter with 10 Year Standard Warranty - 40K-US-F-LSW — PES Supply

Solis 40K-US-F-LSW solar inverter with front LCD display, white rectangular casing

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SKU PES-SPS-SIV-0150

Solis 40kW 3-Phase 4-MPPT W/Fan 480VAC String Inverter with 10 Year Standard Warranty - 40K-US-F-LSW

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

$3,190.03 USD

$ $3,190.03 USD

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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

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Specifications

Datasheet

Power Rating 40 kW

Input Voltage 200-800 V

Output Voltage 480 V

Efficiency 98.6%

Mppt Count 4

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.

Solis 40kW 3-Phase 4-MPPT Inverter with Fan and 10-Year Warranty

The Solis 40K-US-F-LSW inverter is designed to provide reliable, high-efficiency energy conversion for commercial and industrial applications. Featuring a 3-phase and 4-MPPT design, it ensures optimal power harvesting even in complex installations. With a robust build and a 10-year standard warranty, this inverter delivers on both performance and durability, making it an essential component for modern solar systems.

Product Features

Ultimate Efficiency

With a maximum efficiency of 98.6%, the Solis 40K-US-F-LSW ensures that minimal energy is lost during conversion, optimizing your solar investment.

Durable Design

The inverter's transformer-less, corrosion-resistant NEMA 4X enclosure offers longevity and reliable performance even in harsh environments, featuring natural convection cooling.

Advanced Integration

Equipped with industry-leading 4 MPPT inputs, the inverter supports maximum power point tracking, enhancing the energy yield for extensive solar arrays.

Comprehensive Protection

This model includes integrated AFCI, anti-islanding protection, and rapid shutdown features, ensuring both safety and compliance with stringent regulations.

Intuitive Monitoring

Features a 7-inch LCD color display for real-time monitoring and easy interfacing, along with web-based data tracking via Solis's mobile app.

How It Works

The Solis 40K-US-F-LSW inverter efficiently converts DC power generated by solar panels into AC power compatible with the grid. Its four maximum power point tracking systems optimize panel performance, while the advanced safety features protect both the system and users.

MPPT Technology

Each of the inverter's 4 MPPTs dynamically adjusts to optimize power, accommodating conditions such as shade or varied sunlight across panels.

AC Output

Generates a 3-phase, 480V AC output, ensuring compatibility with large-scale commercial electrical systems and consistent energy delivery.

Cooling System

Utilizes a natural convection cooling concept, eliminating the need for external cooling devices and increasing reliability and efficiency.

Specifications

Max. Input Voltage	1000 V
Rated Output Power	40 kW
Max. Efficiency	98.6%
MPPT Voltage Range	200 - 800 V
Rated Grid Frequency	60 Hz
Operating Temp Range	-13 F to 140 F
Ingress Protection	TYPE 4X
Weight	127 lbs (57.7 kg)
Communication	Modbus RTU, RS485, Optional: Cellular, Wi-Fi
Compliances	UL 1741, IEEE 1547, FCC

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?

Solis 40kW 3-Phase 4-MPPT Inverter with Fan and 10-Year Warranty

Product Features

Ultimate Efficiency

With a maximum efficiency of 98.6%, the Solis 40K-US-F-LSW ensures that minimal energy is lost during conversion, optimizing your solar investment.

Durable Design

The inverter's transformer-less, corrosion-resistant NEMA 4X enclosure offers longevity and reliable performance even in harsh environments, featuring natural convection cooling.

Advanced Integration

Equipped with industry-leading 4 MPPT inputs, the inverter supports maximum power point tracking, enhancing the energy yield for extensive solar arrays.

Comprehensive Protection

This model includes integrated AFCI, anti-islanding protection, and rapid shutdown features, ensuring both safety and compliance with stringent regulations.

Intuitive Monitoring

Features a 7-inch LCD color display for real-time monitoring and easy interfacing, along with web-based data tracking via Solis's mobile app.

How It Works

MPPT Technology

Each of the inverter's 4 MPPTs dynamically adjusts to optimize power, accommodating conditions such as shade or varied sunlight across panels.

AC Output

Generates a 3-phase, 480V AC output, ensuring compatibility with large-scale commercial electrical systems and consistent energy delivery.

Cooling System

Utilizes a natural convection cooling concept, eliminating the need for external cooling devices and increasing reliability and efficiency.

Specifications

Max. Input Voltage	1000 V
Rated Output Power	40 kW
Max. Efficiency	98.6%
MPPT Voltage Range	200 - 800 V
Rated Grid Frequency	60 Hz
Operating Temp Range	-13 F to 140 F
Ingress Protection	TYPE 4X
Weight	127 lbs (57.7 kg)
Communication	Modbus RTU, RS485, Optional: Cellular, Wi-Fi
Compliances	UL 1741, IEEE 1547, FCC

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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!

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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

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