Who Offers the Best Automatic Generator Changeover Switch?

Choosing the best [automatic generator changeover switch (ATS)¹]automatic-transfer-switch is essential for ensuring that your backup power system operates smoothly and safely. Whether you're looking to power a home, office, or critical infrastructure, the right ATS can make all the difference when there's a power failure.

Finding the best ATS involves evaluating factors like reliability, ease of installation, safety features, and overall performance.

In this article, we'll explore what to look for when choosing an ATS and provide a comparison of some top-rated options available in the market today. Let’s get started!

What Should I Consider When Choosing a Generator Changeover Switch?

Choosing the right automatic generator changeover switch requires careful consideration of several factors. These factors determine the switch’s compatibility with your generator, ease of installation, and the overall performance during an emergency power transfer.

Key considerations include load capacity, type of generator, switch operation, and safety features.

1. Load Capacity² and Sizing

The load capacity is one of the most important factors when selecting an ATS. The ATS must be able to handle the total electrical load of the devices it will be powering during an outage. If you have a large generator or a system that needs to support critical loads (e.g., hospital equipment, data centers), make sure the ATS is rated for your specific needs.

How to Choose:

• Calculate the total wattage of the devices you want to power during an outage.
• Ensure the ATS has a suitable amperage rating for your generator’s output.

2. Type of Generator³

Not all ATS are compatible with every type of generator. It’s important to check whether the ATS is designed to work with your specific generator brand and model. Some generators, like those from Cummins, MTU, or Perkins, may require specialized transfer switches.

How to Choose:

• Match the ATS specifications with your generator’s output (single-phase or three-phase).
• Check for compatibility with different fuel types (diesel, natural gas, etc.).

3. Ease of Installation

While automatic transfer switches are generally straightforward to install, some models may require more complex wiring and configuration. If you are installing the ATS yourself, it’s essential to choose one that suits your skill level. Alternatively, opt for professional installation if the system involves complex setups.

How to Choose:

• Look for user-friendly models that include detailed installation instructions.
• Consider whether the switch has plug-and-play features or requires more advanced electrical work.

4. Safety and Protection Features⁴

ATS units are critical for maintaining a reliable and safe power supply during outages. Therefore, look for models with built-in surge protection, overload protection, and ground fault detection to minimize the risk of electrical accidents.

How to Choose:

• Check if the ATS includes circuit breakers or fuse protection.
• Ensure the model is UL-certified and meets local safety codes.

5. Automatic or Manual Override

Some ATS models offer manual override features, which allow you to manually switch between the grid and generator power if needed. This can be a handy feature in case the automatic system fails or requires maintenance.

How to Choose:

• Decide if you prefer a fully automatic system or one with manual backup capabilities.
• If manual override is needed, ensure it’s easy to access and operate.

Are There Reviews or Comparisons for the Best Automatic Generator Changeover Switches?

Yes, there are several reliable sources and expert reviews comparing different ATS models to help you make an informed decision. Reviews typically cover performance, durability, ease of use, and customer satisfaction.

Here’s a comparison of some of the best automatic changeover switches available today.

1. [Generac RTS⁵ Automatic Transfer Switch]

Generac is a well-known brand in the generator industry, and their RTS series of automatic transfer switches are popular choices. They are designed to work seamlessly with Generac home standby generators but can also work with other generator brands. Known for their reliability and safety features, the RTS series offers a robust and efficient power transfer system.

Key Features:

• Load Capacity: Available in various sizes to support small to large homes.
• Automatic Operation: Switches to generator power in under 10 seconds.
• Safety Features: Surge protection, circuit breakers, and a comprehensive monitoring system.