Automatic Transfer Switch

Toggle between on-grid Eskom electricity and solar or home backup power seamlessly with the EcoFlow Automatic Transfer Switch.

Integrating the EcoFlow DELTA Pro with your home circuit board using the Automatic Transfer Switch lets you have virtually uninterrupted power* during load-shedding and unscheduled blackouts.

EcoFlow DELTA Pro offers up to 7.2kW of AC output (14,400kW surge power using X-Boost) — more than enough to run all your essential appliances.

It’s expandable to 25kWh of storage, enough electricity to keep your house up and running even during extended Eskom power outages.

EcoFlow DELTA Pro is a hybrid solar generator and home backup battery.

You can recharge the portable power station between blackouts using on-grid electricity or stay off-grid indefinitely by connecting up to 16 x EcoFlow 400W rigid solar panels.

An electrician or other qualified person can quickly and easily install the EcoFlow Automatic Transfer Switch and connect it to your home wiring and portable power station.

EcoFlow has authorised installers in Johannesburg and Cape Town, and we’re happy to help if you have any questions.

With a portable power station and automatic transfer switch, you can protect your family and home from load-shedding and unscheduled blackouts.

*0.2 second switchover time

An Automatic Transfer Switch (ATS) is a critical component in backup power systems, designed to automatically switch an electrical load between a primary power source and a secondary backup source, such as a generator or inverter. It ensures uninterrupted power supply during outages, making it essential for residential, commercial, and industrial applications.

The primary function of an Automatic Transfer Switch is to monitor the incoming utility power continuously. When it detects a power failure, voltage drop, or frequency irregularity, it instantly signals the backup generator or alternative power source to start. Once the backup power reaches stable operating levels, the ATS transfers the electrical load from the main supply to the backup system. When utility power is restored and stabilized, the switch automatically transfers the load back and shuts down the generator safely.

One of the main advantages of an ATS is convenience. Unlike manual transfer switches, which require human intervention, an automatic system responds immediately without requiring the user to be present. This is especially important for critical environments such as hospitals, data centers, security systems, and cold storage facilities, where even short power interruptions can cause serious consequences.

Safety is a key feature of Automatic Transfer Switches. They are designed to prevent backfeeding, a dangerous condition where electricity flows back into the utility grid, posing risks to utility workers and damaging equipment. The ATS ensures that only one power source is connected to the load at any given time, protecting both the electrical system and connected devices.

Modern ATS units are available in various capacities and configurations to match different power requirements. They can support single-phase or three-phase systems and are compatible with diesel generators, gas generators, solar inverters, and battery backup systems. Many models also include digital displays and monitoring features for real-time status updates and diagnostics.

Durability and reliability are essential qualities of an ATS. Built with high-quality contactors and control mechanisms, these switches are designed to withstand frequent operations and long-term use. Proper installation by a qualified electrician ensures optimal performance and compliance with electrical regulations.

Overall, an Automatic Transfer Switch provides seamless power transition, enhanced safety, and peace of mind. It is an indispensable part of any reliable backup power setup, ensuring continuous electricity supply when it matters most.