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GoodWe SMT-US Series 480V Commercial Inverter - GW50K-SMT-US APS

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GoodWe SMT-US Series 480V Commercial Inverter - GW50K-SMT-US APS

$6,166.35 USD

$ $6,166.35 USD

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9+ sold

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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.

GoodWe GW50K-SMT-US — 50 kW, 480 V Three-Phase (SMT-US Series)

The GoodWe SMT-US Series 480V Commercial Inverter is designed to deliver dependable, high-performance energy conversion for large-scale commercial and industrial solar installations. Built with advanced grid-support capabilities and robust safety features, this inverter supports businesses looking to maximize solar output while maintaining long-term system stability. With its intelligent design and proven reliability, it is well suited for commercial rooftops, carports, and ground-mounted solar projects.

Engineered for the North American market, this inverter operates seamlessly on 480V three-phase utility networks and meets strict grid compliance requirements. The GoodWe SMT-US Series 480V Commercial Inverter - GW50K-SMT-US APS stands out as a future-ready solution that combines efficiency, safety, and smart monitoring in one powerful system.

High-efficiency C&I string inverter with up to 5 MPPTs, wide 180–980 Vdc range, NEMA Type 4X enclosure, integrated AFCI & Type II SPDs, and Rapid Shutdown integrated (PVRSS). “APS” variant includes the factory APS RSD transmitter for module-level shutdown.

Technical Specifications (from GoodWe SMT-US datasheet)

Input (DC)
Max. input voltage	1000 V
MPPT operating voltage range	180 ~ 980 V
Start-up voltage	200 V
Nominal input voltage	720 V
Max. input current per MPPT	30 A
Max. short-circuit current per MPPT	50 A
Number of MPP trackers	5
Strings per MPPT	2
Output (AC)
Nominal output power	50 kW
Nominal apparent power	50 kVA
Max. AC active power	55 kW
Max. AC apparent power	55 kVA
Nominal AC grid voltage	480 V, 3L/N/PE or 3L/PE
Nominal grid frequency	60 Hz
Max. output current	67 A
Power factor	~1 (adjustable 0.8 leading … 0.8 lagging)
Max. THD	< 3%
Efficiency
Max. efficiency	98.5%
CEC efficiency	98.2%
Protection & Safety
PV string current monitoring	Integrated
PV insulation resistance detection	Integrated
Residual current monitoring	Integrated
PV reverse-polarity protection	Integrated
Anti-islanding protection	Integrated
AC overcurrent / short-circuit / overvoltage	Integrated
DC switch / AC switch	Integrated
DC surge protection	Type II
AC surge protection	Type II
AFCI	Integrated (AI-driven)
Rapid Shutdown	Integrated (PVRSS)
General
Operating temperature	−30 ~ +60 °C (derate > +45 °C) / −22 ~ +140 °F (derate > +113 °F)
Relative humidity	0 ~ 100%
Max. operating altitude	4000 m (derate > 3000 m) / 13123 ft (derate > 9842.5 ft)
Cooling	Smart fan cooling
Display / Monitoring	LED, WLAN + App
Communication	RS485, Wi-Fi, USB, 4G or Wi-Fi + LAN (optional)
Protocols	Modbus-RTU (SunSpec compliant)
Noise	< 65 dB(A)
Topology	Non-isolated
Night self-consumption	< 12 W* (*<1 W without optional RSD & 24-hr load monitoring.)
Enclosure rating	NEMA Type 4X
DC connector	#12 ~ #8 AWG (Cu)
AC connector	OT (#5–3/0 AWG, Cu or Al)
Weight	70 kg (154.3 lb)
Dimensions (W × H × D)	520 × 990 × 220 mm (20.5 × 39.0 × 8.7 in)
Compliance
Certifications	UL 1741 (Third Edition); IEEE 1547-2018/1547.1-2020/1547a-2020; CSA C22.2 No.0.8-19 & UL 1998 Ed.3; PVRSS (NEC-2020 690.12 / CEC-2018 64-218); IEEE 2030.5-2018

All technical values from GoodWe SMT-US datasheet; APS-transmitter variant confirmed via distributor listings.

High-Efficiency Performance for Commercial Applications

The GoodWe SMT-US Series 480V Commercial Inverter is optimized for high energy yields across diverse operating conditions. Featuring advanced Maximum Power Point Tracking (MPPT) technology, it ensures that solar arrays operate at peak efficiency throughout the day, even during fluctuating sunlight or partial shading.

With multiple MPPT channels, the inverter allows greater design flexibility, enabling installers to optimize panel layouts across complex commercial rooftops. This results in improved energy harvest, reduced mismatch losses, and better overall system performance.

The inverter’s high conversion efficiency helps reduce energy waste and improves return on investment, making it an ideal choice for businesses focused on lowering operational energy costs while enhancing sustainability goals.

Built for Durability and Long-Term Reliability

Commercial solar systems require equipment that can perform reliably under demanding environmental conditions. The GoodWe SMT-US Series 480V Commercial Inverter is built with a rugged enclosure and industrial-grade components designed for long service life.

Its advanced thermal management system ensures stable operation in high-temperature environments, while internal protection mechanisms safeguard against overvoltage, short circuits, and grid disturbances. These features reduce downtime and help maintain consistent power generation year-round.

The inverter’s design prioritizes minimal maintenance, making it suitable for facilities that demand uninterrupted performance and predictable operating costs.

Smart Grid Compatibility and Safety Features

Grid compliance and safety are critical in commercial energy systems. The GoodWe SMT-US Series 480V Commercial Inverter supports advanced grid-support functions, including reactive power control, voltage ride-through, and frequency response capabilities. These features help stabilize the local grid while ensuring compliance with utility interconnection standards.

Integrated safety protections include anti-islanding functionality, arc fault detection, and ground fault monitoring. These mechanisms protect both the system and on-site personnel, ensuring safe operation across all conditions.

By supporting modern grid requirements, the inverter ensures long-term compatibility as energy regulations continue to evolve.

Intelligent Monitoring and System Visibility

Effective system management is essential for maximizing solar performance. The GoodWe SMT-US Series 480V Commercial Inverter includes intelligent monitoring capabilities that allow real-time performance tracking and system diagnostics.

Operators can monitor energy production, detect potential issues early, and analyze system trends to improve operational efficiency. This level of visibility reduces troubleshooting time and supports proactive maintenance strategies.

Smart communication interfaces allow seamless integration with commercial energy management platforms, making it easier for facility managers to oversee multiple installations from a single dashboard.

Ideal Use Cases for Commercial and Industrial Projects

The GoodWe SMT-US Series 480V Commercial Inverter is well suited for a wide range of applications, including:

Commercial office buildings
Manufacturing facilities
Warehouses and logistics centers
Educational and healthcare institutions
Retail complexes and parking structures

Its scalable design and flexible configuration options make it adaptable for both new installations and system expansions, ensuring long-term value for growing energy demands.

Why Choose the GoodWe SMT-US Series 480V Commercial Inverter?

Choosing the right inverter is critical to the success of any commercial solar project. The GoodWe SMT-US Series 480V Commercial Inverter offers a balance of efficiency, durability, and intelligent functionality that supports both performance and reliability. With advanced safety systems, smart monitoring, and strong grid compatibility, it provides a dependable foundation for commercial solar investments focused on long-term returns and operational stability.

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 GW50K-SMT-US — 50 kW, 480 V Three-Phase (SMT-US Series)

Technical Specifications (from GoodWe SMT-US datasheet)

Input (DC)
Max. input voltage	1000 V
MPPT operating voltage range	180 ~ 980 V
Start-up voltage	200 V
Nominal input voltage	720 V
Max. input current per MPPT	30 A
Max. short-circuit current per MPPT	50 A
Number of MPP trackers	5
Strings per MPPT	2
Output (AC)
Nominal output power	50 kW
Nominal apparent power	50 kVA
Max. AC active power	55 kW
Max. AC apparent power	55 kVA
Nominal AC grid voltage	480 V, 3L/N/PE or 3L/PE
Nominal grid frequency	60 Hz
Max. output current	67 A
Power factor	~1 (adjustable 0.8 leading … 0.8 lagging)
Max. THD	< 3%
Efficiency
Max. efficiency	98.5%
CEC efficiency	98.2%
Protection & Safety
PV string current monitoring	Integrated
PV insulation resistance detection	Integrated
Residual current monitoring	Integrated
PV reverse-polarity protection	Integrated
Anti-islanding protection	Integrated
AC overcurrent / short-circuit / overvoltage	Integrated
DC switch / AC switch	Integrated
DC surge protection	Type II
AC surge protection	Type II
AFCI	Integrated (AI-driven)
Rapid Shutdown	Integrated (PVRSS)
General
Operating temperature	−30 ~ +60 °C (derate > +45 °C) / −22 ~ +140 °F (derate > +113 °F)
Relative humidity	0 ~ 100%
Max. operating altitude	4000 m (derate > 3000 m) / 13123 ft (derate > 9842.5 ft)
Cooling	Smart fan cooling
Display / Monitoring	LED, WLAN + App
Communication	RS485, Wi-Fi, USB, 4G or Wi-Fi + LAN (optional)
Protocols	Modbus-RTU (SunSpec compliant)
Noise	< 65 dB(A)
Topology	Non-isolated
Night self-consumption	< 12 W* (*<1 W without optional RSD & 24-hr load monitoring.)
Enclosure rating	NEMA Type 4X
DC connector	#12 ~ #8 AWG (Cu)
AC connector	OT (#5–3/0 AWG, Cu or Al)
Weight	70 kg (154.3 lb)
Dimensions (W × H × D)	520 × 990 × 220 mm (20.5 × 39.0 × 8.7 in)
Compliance
Certifications	UL 1741 (Third Edition); IEEE 1547-2018/1547.1-2020/1547a-2020; CSA C22.2 No.0.8-19 & UL 1998 Ed.3; PVRSS (NEC-2020 690.12 / CEC-2018 64-218); IEEE 2030.5-2018

All technical values from GoodWe SMT-US datasheet; APS-transmitter variant confirmed via distributor listings.

High-Efficiency Performance for Commercial Applications

Built for Durability and Long-Term Reliability

The inverter’s design prioritizes minimal maintenance, making it suitable for facilities that demand uninterrupted performance and predictable operating costs.

Smart Grid Compatibility and Safety Features

By supporting modern grid requirements, the inverter ensures long-term compatibility as energy regulations continue to evolve.

Intelligent Monitoring and System Visibility

Ideal Use Cases for Commercial and Industrial Projects

The GoodWe SMT-US Series 480V Commercial Inverter is well suited for a wide range of applications, including:

Commercial office buildings
Manufacturing facilities
Warehouses and logistics centers
Educational and healthcare institutions
Retail complexes and parking structures

Its scalable design and flexible configuration options make it adaptable for both new installations and system expansions, ensuring long-term value for growing energy demands.

Why Choose the GoodWe SMT-US Series 480V Commercial Inverter?

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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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