Growatt ATS 11400T-US | 11.4kW Output | 11.4K Split Phase Transformer | Work with MIN inverter V2 for partial home backup
- ATS-US comes with built-in transformer
- ATS 11400T-US has a maximum sum of L1-N and L2-N simultaneous output is 11400VA
- Output voltage 120/240Vac
- IP65, 10 Years Warranty
The Growatt 11.4kW auto transfer switch and US Split Phase transformer take Single Phase 240Vac (L/N) electricity output and create true Split Phase 120Vac/120Vac (L/L/N). ATS addition to our line sheet improves safety and ease of use for the user with designated input and output locations to simplify connecting this transformer to your system. This product is typically used to be integrated into the Growatt home battery storage system with MIN series Grid-tie inverter, Growatt APX HV Battery ( or ARO HV Battery ).
Product Overviews
| Manufacturer | Growatt |
| Model | ATS 11400T-US |
| Rated power output | 11400W |
| Output voltage | 120/240Vac |
| Dimensions(W/H/D) | 18.9 / 10.8 / 4.1 inch ( 480 / 275 / 105mm ) |
| Weight | 34.3lbs ( 15.6kg ) |
| Warranty | 10 Years |
Key Features
- Backup Capability
Partial home load backup - Easy Operation
Built-in split-phase transformer for 120v/240v output - Application Flexibility
5kW and 11.4kW available
Download
Datasheet
ATS-US Specs
User Manual & Quick Guide
ATS-US Quick Guide
Certificates
ATS-US UL1747
ABOUT Growatt
Growatt is a leading global manufacturer of solar inverters, energy storage solutions, and smart energy management systems. Founded in 2010, the company has grown rapidly to become a trusted brand in the renewable energy industry, with a presence in over 100 countries and regions around the world.
Growatt's innovative products are designed to maximize energy efficiency and enable customers to reduce their carbon footprint while saving money on energy bills. The company's range of solar inverters includes both string and central inverters, which are suitable for a wide range of applications, from residential rooftops to large-scale commercial and utility-scale projects.
In addition to solar inverters, Growatt also offers a range of energy storage solutions, including lithium-ion batteries and hybrid inverters. These products allow customers to store excess energy generated by their solar panels and use it when needed, further reducing their reliance on grid power.
With a commitment to innovation and customer service, Growatt is dedicated to providing reliable, high-quality products and solutions that meet the evolving needs of the renewable energy industry.
FAQ
The Growatt ATS-US (Automatic Transfer Switch) is a smart switching device designed for residential backup power systems in North America. It automatically transfers household loads between the utility grid and a backup power source, such as a Growatt hybrid inverter and battery system. During a power outage, the ATS-US quickly switches to backup mode, helping maintain electricity for essential appliances while providing safe and reliable energy management.
When the utility grid fails, the Growatt ATS-US detects the interruption and automatically disconnects the home from the grid. It then transfers the connected backup loads to the Growatt inverter and battery system. Once utility power returns, the ATS-US safely reconnects the home to the grid. This automatic process reduces downtime and allows homeowners to maintain critical power without manually operating switches during outages.
Yes. The Growatt ATS-US is specifically designed to work with compatible Growatt hybrid inverter systems, including selected North American models. It communicates with the inverter to coordinate backup operation, grid isolation, and power transfer functions. Using a matched Growatt inverter and ATS combination ensures proper communication, reliable switching performance, and optimized backup operation for residential solar-plus-storage applications.
The Growatt ATS-US can support selected residential backup loads depending on the inverter capacity, battery size, and electrical system design. Typical supported loads include refrigerators, lighting, internet equipment, security systems, small appliances, and other essential household circuits. For larger loads such as HVAC systems, electric water heaters, or EV chargers, proper system sizing and load management are required to ensure reliable backup performance.
The Growatt ATS-US can support whole-home backup configurations when paired with a properly sized Growatt inverter, sufficient battery capacity, and appropriate electrical design. However, the ability to power an entire home depends on the home's peak demand and connected appliances. Homes with large loads may require load management, multiple inverters, or prioritized backup circuits to ensure stable operation during extended outages.
The Growatt ATS-US is designed for fast automatic transfer between grid power and backup power. Transfer time depends on the specific system configuration and operating conditions, but it is engineered to minimize interruption to connected loads. When combined with a compatible Growatt inverter and battery system, it provides smooth backup transitions suitable for maintaining operation of important household equipment during utility failures.
Yes. The Growatt ATS-US is commonly installed as part of a complete solar energy storage system that includes solar panels, a Growatt hybrid inverter, and batteries. During normal operation, solar energy can power household loads and charge the battery. During outages, the ATS-US enables the inverter and battery system to supply backup power while keeping the home safely isolated from the utility grid.
The Growatt ATS-US provides a convenient and reliable solution for homeowners who want automatic backup power during grid outages. Its seamless integration with Growatt energy storage systems, automatic transfer capability, and enhanced safety features simplify backup operation. Combined with solar panels, batteries, and a compatible inverter, the ATS-US helps create a smarter home energy system with improved resilience, energy independence, and peace of mind.
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