What makes the ATESS US standard 630KW battery inverter – ATESS PCS630-US-480 suitable for large-scale projects?

Its high power capacity, scalability, and advanced grid support functions make it ideal for commercial, industrial, and utility-scale installations.

Can the ATESS PCS630-US-480 operate in both grid-connected and off-grid modes?

Absolutely. It features grid-forming capability, enabling smooth transitions between grid-tied and standalone operations.

What safety features are included in the ATESS PCS630-US-480 model?

The inverter features overvoltage protection, thermal safeguards, surge protection, and short-circuit prevention for secure operation.

Does the ATESS US standard 630KW battery inverter support remote monitoring?

Yes. It includes intelligent monitoring systems with real-time data access, remote control options, and multiple communication protocols.

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ATESS US standard 630KW battery inverter (without transformer) - ATESS PCS630-US-480

ATESS US standard 630KW battery inverter (without transformer) - ATESS PCS630-US-480

ATESS US standard 630KW battery inverter (without tranformer) - ATESS PCS630-US-480 | Portlandia Electric Supply

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ATESS US standard 630KW battery inverter (without transformer) - ATESS PCS630-US-480

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$59,995.00 USD

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Specifications

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.

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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.

ATESS PCS630-US-480 — 630 kW Bidirectional Battery Inverter (277/480 V Wye)

The ATESS US standard 630KW battery inverter – ATESS PCS630-US-480 is engineered to deliver high-performance energy conversion, exceptional durability, and optimized grid interaction for modern commercial and industrial energy systems. Designed specifically for large-scale applications, this powerful inverter offers unparalleled efficiency and intelligent power management capabilities. Whether used in renewable energy storage, microgrids, peak-shaving systems, or backup power setups, it ensures consistently reliable operation under demanding conditions.

PCS630-US-480 is designed for utility-scale C&I storage: ≤10 ms transfer, DG dry-contact, and up to 8 units parallel operation. ^{[ATESS product + datasheet]}

Key features

630 kW / 630 kVA @ 480 V, 758 A
Battery 650–900 V, max charge/discharge 1155 A
Max efficiency 98.5%, Type 1 enclosure
Touchscreen LCD; RS485/CAN; Type II DC surge protection
Built-in transformer: No (datasheet note)

Specifications

**PCS630-US-480** — specification box
AC (on-grid)
Apparent / rated power	630 kVA / 630 kW
Rated voltage / current	480 V (277/480 V wye), 758 A
Voltage / freq range	432–528 V; 50/60 Hz (45–55 / 55–65 Hz)
PF / THDi	0.8 lag–0.8 lead; <3%
AC (off-grid)
Rated power / current	630 kW / 758 A @ 480 V
THDu / overload	≤2% (linear); 110% 10 min, 120% 1 min
DC (battery)
Voltage range	650–900 VDC
Max charge / discharge	1155 A
General
Efficiency	98.50% (max)
Enclosure / noise	Type 1; <65 dB(A) @ 1 m
Environment	−25 °C ~ +55 °C; ≤6000 m (derate >3000 m)
Transfer (grid↔backup)	Manual (default); Automatic (optional) ≤10 ms
Dimensions (W×H×D)	1200 × 1900 × 800 mm (≈ 47.24″ × 74.80″ × 31.50″)
Weight	900 kg (≈ 1984.16 lb)
Built-in transformer	No

Specs are taken directly from the US-480 datasheet. ^[datasheet]

The ATESS US standard 630KW battery inverter (without tranformer) – ATESS PCS630-US-480 is built to meet the evolving needs of energy-intensive environments. Its transformer-less design enhances conversion efficiency while reducing installation complexity. This heavy-duty model supports advanced grid-connected and off-grid configurations, offering seamless integration with battery energy storage systems across diverse applications.

With industry-leading power output and adaptive control technology, this inverter enables businesses, utilities, and energy developers to achieve cost-effective, stable, and sustainable energy performance.

Key Benefits of the ATESS US Standard 630KW Battery Inverter – ATESS PCS630-US-480

1. High-Efficiency Power Conversion

The ATESS PCS630-US-480 delivers remarkable conversion efficiency, allowing maximum energy utilization from connected batteries. Its transformer-less architecture minimizes energy loss and provides higher performance across daily operations.

2. Robust Grid Support Functionality

Built to meet US grid standards, this inverter supports voltage regulation, frequency response, reactive power compensation, and black-start capability. These features help stabilize energy systems while enhancing overall grid reliability.

3. Scalable for Large-Scale Energy Projects

This model supports small installations as well as complex multi-megawatt configurations. It can be easily paralleled, making it ideal for utility-scale solar-plus-storage plants and industrial microgrids.

4. Intelligent Monitoring and Control

With integrated smart controllers, real-time monitoring, and advanced communication protocols, the ATESS PCS630-US-480 ensures complete oversight of energy production and storage. Users gain precise data insights for efficient energy management.

Why Choose the ATESS US Standard 630KW Battery Inverter (Without Tranformer) – ATESS PCS630-US-480?

High Power Density for Demanding Applications

This inverter is engineered with high power density, enabling more output in a compact footprint. It is an optimal choice for businesses that require powerful solutions without excessive space requirements.

Flexible Installation Options

The system accommodates both indoor and outdoor placement. Its rugged construction withstands harsh climates while maintaining performance consistency.

Enhanced Safety Features

Built-in protections include overvoltage safeguards, overcurrent protection, short-circuit prevention, surge protection, and temperature management. These safety measures ensure long-term reliability and secure operation.

Advanced Battery Compatibility

It supports a wide range of lithium-ion and other advanced battery technologies. This flexibility allows users to pair the inverter with preferred battery systems for customized performance.

Applications of the ATESS PCS630-US-480

Commercial & Industrial Energy Storage

Ideal for factories, data centers, and corporate campuses aiming to reduce peak demand charges and stabilize power consumption.

Renewable Energy Integration

Perfect for solar-plus-storage or wind-plus-storage projects requiring seamless grid interaction and high-power output.

Utility-Scale Microgrids

Supports remote communities, industrial zones, and campus-level energy systems with reliable grid-forming capabilities.

Backup and Emergency Power

Ensures critical systems stay powered during outages, enhancing operational continuity.

Technical Strength and Performance

The ATESS US standard 630KW battery inverter – ATESS PCS630-US-480 comes equipped with superior thermal management features, robust cooling technology, and an architecture built for continuous heavy-load operation. Its ability to maintain stable output under varying load conditions makes it an excellent fit for mission-critical applications.

Energy operators appreciate its low THD (Total Harmonic Distortion), high round-trip efficiency, and compatibility with intelligent energy management platforms. Whether the goal is grid stabilization, load shifting, or on-site energy optimization, the PCS630-US-480 stands out as a dependable and future-ready 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?

ATESS PCS630-US-480 — 630 kW Bidirectional Battery Inverter (277/480 V Wye)

PCS630-US-480 is designed for utility-scale C&I storage: ≤10 ms transfer, DG dry-contact, and up to 8 units parallel operation. ^{[ATESS product + datasheet]}

Key features

630 kW / 630 kVA @ 480 V, 758 A
Battery 650–900 V, max charge/discharge 1155 A
Max efficiency 98.5%, Type 1 enclosure
Touchscreen LCD; RS485/CAN; Type II DC surge protection
Built-in transformer: No (datasheet note)

Specifications

**PCS630-US-480** — specification box
AC (on-grid)
Apparent / rated power	630 kVA / 630 kW
Rated voltage / current	480 V (277/480 V wye), 758 A
Voltage / freq range	432–528 V; 50/60 Hz (45–55 / 55–65 Hz)
PF / THDi	0.8 lag–0.8 lead; <3%
AC (off-grid)
Rated power / current	630 kW / 758 A @ 480 V
THDu / overload	≤2% (linear); 110% 10 min, 120% 1 min
DC (battery)
Voltage range	650–900 VDC
Max charge / discharge	1155 A
General
Efficiency	98.50% (max)
Enclosure / noise	Type 1; <65 dB(A) @ 1 m
Environment	−25 °C ~ +55 °C; ≤6000 m (derate >3000 m)
Transfer (grid↔backup)	Manual (default); Automatic (optional) ≤10 ms
Dimensions (W×H×D)	1200 × 1900 × 800 mm (≈ 47.24″ × 74.80″ × 31.50″)
Weight	900 kg (≈ 1984.16 lb)
Built-in transformer	No

Specs are taken directly from the US-480 datasheet. ^[datasheet]

Key Benefits of the ATESS US Standard 630KW Battery Inverter – ATESS PCS630-US-480

1. High-Efficiency Power Conversion

2. Robust Grid Support Functionality

3. Scalable for Large-Scale Energy Projects

4. Intelligent Monitoring and Control

Why Choose the ATESS US Standard 630KW Battery Inverter (Without Tranformer) – ATESS PCS630-US-480?

High Power Density for Demanding Applications

Flexible Installation Options

The system accommodates both indoor and outdoor placement. Its rugged construction withstands harsh climates while maintaining performance consistency.

Enhanced Safety Features

Advanced Battery Compatibility

It supports a wide range of lithium-ion and other advanced battery technologies. This flexibility allows users to pair the inverter with preferred battery systems for customized performance.

Applications of the ATESS PCS630-US-480

Commercial & Industrial Energy Storage

Ideal for factories, data centers, and corporate campuses aiming to reduce peak demand charges and stabilize power consumption.

Renewable Energy Integration

Perfect for solar-plus-storage or wind-plus-storage projects requiring seamless grid interaction and high-power output.

Utility-Scale Microgrids

Supports remote communities, industrial zones, and campus-level energy systems with reliable grid-forming capabilities.

Backup and Emergency Power

Ensures critical systems stay powered during outages, enhancing operational continuity.

Technical Strength and Performance

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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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