What makes the SolarEdge Three Phase Inverter suitable for commercial systems?

The SolarEdge Three Phase Inverter supports high AC output, advanced safety functions, and module-level monitoring. Its 277/480V compatibility and 98.5% efficiency make it ideal for large commercial installations.

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SolarEdge Three Phase Inverter 33.3.0kW 270/480V - SE33.3K-USR48BNU4

SolarEdge Three Phase Inverter 33.3.0kW 270/480V - SE33.3K-USR48BNU4

SolarEdge SE33.3K-USR48BNU4 inverter front view, white casing, branded panel

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Trusted by 1,000s of Contractors & Installers

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SKU PES-SPS-SIV-0489

SolarEdge Three Phase Inverter 33.3.0kW 270/480V - SE33.3K-USR48BNU4

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

$3,256.09 USD

$ $3,256.09 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

Voltage 480V

Phase Three Phase

Product Category Inverter

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.

SolarEdge Three Phase Inverter 33.3kW for 277/480V Grid

The SolarEdge SE33.3K-USR48BNU4 inverter is engineered for the 277/480V grid, providing high-efficiency energy conversion for residential and commercial applications. Featuring superior reliability and smart energy management, this inverter optimizes solar power generation and ensures consistent performance. Leveraging advanced technology, it seamlessly integrates with power optimizers to enhance solar output and connectivity over both wired and wireless networks.

Product Features

Smart Inverter Commissioning

Effortlessly set up the inverter directly through your smartphone using the intuitive SolarEdge SetApp. This feature simplifies the commissioning process, ensuring quick deployment in diverse installation scenarios.

Advanced Safety Mechanisms

Equipped with built-in arc fault protection and rapid shutdown capabilities under NEC 2014 and 2017 standards, this inverter prioritizes user safety by preventing electrical hazards and enhancing system reliability.

Optimized for Power Generation

Specifically tailored to function with SolarEdge€™s power optimizers, this inverter maximizes solar energy harvest and offers module-level monitoring for superior oversight and performance control.

High Efficiency and Connectivity

Achieving a remarkable efficiency of up to 98.5%, this inverter supports Ethernet and optional GSM communications, keeping you connected and informed about your solar energy system's status and efficiency.

Robust Design for Diverse Installations

Designed to be lightweight and compact, this inverter is ideal for both indoor and outdoor setups. It includes an integrated safety switch and RS485 surge protection to withstand environmental stressors and maintain optimal operation.

How It Works

This inverter transforms direct current (DC) generated by solar panels into alternating current (AC) suitable for the grid. Incorporating intelligent safety features and monitoring systems, it ensures safe and efficient energy conversion.

DC Input Processing

The inverter processes DC input from solar panels, utilizing advanced algorithms to maximize energy output and enhance performance.

AC Output Management

It manages AC output with precision, offering stability and efficiency in energy delivery to the 277/480V grid.

Integrated Communications

Built-in communication interfaces support seamless integration with monitoring platforms, enhancing functionality and user experience.

Specifications

Rated AC Power Output	33,300 VA
Maximum DC Power	40,500 W
AC Frequency	59.3 - 60.5 Hz
Continous Output Current (per Phase)	40 A
Cooling	Fans (user replaceable)
Operating Temperature Range	-40 to +60°C
Protection Rating	NEMA 3R
Dimensions (H x W x D)	540 x 315 x 260 mm
Weight	45 kg
Noise Level	< 55 dBA

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?

SolarEdge Three Phase Inverter 33.3kW for 277/480V Grid

Product Features

Smart Inverter Commissioning

Advanced Safety Mechanisms

Optimized for Power Generation

High Efficiency and Connectivity

Robust Design for Diverse Installations

How It Works

DC Input Processing

The inverter processes DC input from solar panels, utilizing advanced algorithms to maximize energy output and enhance performance.

AC Output Management

It manages AC output with precision, offering stability and efficiency in energy delivery to the 277/480V grid.

Integrated Communications

Built-in communication interfaces support seamless integration with monitoring platforms, enhancing functionality and user experience.

Specifications

Rated AC Power Output	33,300 VA
Maximum DC Power	40,500 W
AC Frequency	59.3 - 60.5 Hz
Continous Output Current (per Phase)	40 A
Cooling	Fans (user replaceable)
Operating Temperature Range	-40 to +60°C
Protection Rating	NEMA 3R
Dimensions (H x W x D)	540 x 315 x 260 mm
Weight	45 kg
Noise Level	< 55 dBA

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Prepare for Anything

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

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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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