Automatic Transfer Switches for Generators
At General Power, we know that reliable backup power is more than just a luxury, it is a necessity for homes, businesses, and facilities across the globe. Whether you are protecting critical data, running essential medical equipment, or simply keeping the lights on during a storm, having a dependable automatic transfer switch (ATS) is key to making sure your generator steps in at the right time.
Based in Miami and serving over 100 countries, we bring over 20 years of expertise as a trusted OEM and distributor in power generation. With fast shipping, same-day quoting, bilingual support, and EGSA certified staff, we offer more than just products, we deliver peace of mind.
ASCO Automatic Transfer Switches
The ASCO automatic transfer switch is one of the most respected names in the industry. Known for its durability and advanced control systems, ASCO offers seamless power switching during outages. These switches detect loss of utility power and automatically signal the generator to start. Once the generator is up and running, the ATS transfers the load so operations continue without a hitch. When utility power returns, the switch transfers the load back and shuts down the generator.
ASCO automatic transfer switches are ideal for industrial, commercial, and critical infrastructure applications. Designed to meet NFPA, UL, and IEC standards, these switches come with options for open or closed transition, delayed transition, and bypass isolation.
GE Zenith Automatic Transfer Switches
GE Zenith automatic transfer switches are another trusted choice available through General Power. These switches are known for their microprocessor-based control panels, allowing for smart and accurate load management. They are particularly suited for mission-critical systems like data centers, telecommunications, and healthcare environments.
GE Zenith switches are built with rugged construction and high endurance contact assemblies. They offer fast transfer times and minimal voltage drop, which means your equipment stays protected. With customizable options and real-time diagnostics, GE Zenith ATS units provide advanced monitoring capabilities and system status at a glance.
What Does an Automatic Transfer Switch Do?
An automatic transfer switch monitors utility power at all times. When it senses a power failure, it automatically starts the generator and switches the electrical load from the utility line to the generator. This means you don’t need to be present to activate anything, the system works on its own.
Once utility power is restored, the ATS shifts the load back and turns the generator off. It’s a complete cycle of detection, response, and return to normal, all without manual intervention. Some of the key features of an ATS include:
- Continuous monitoring: Always watches for voltage drop or outage
- Automatic response: Starts the generator and transfers power without delay
- System protection: Prevents equipment damage from power loss or fluctuations
With this kind of automation, you can keep operations running smoothly and safely.
What Triggers an Automatic Transfer Switch?
An ATS is triggered when it detects a drop in voltage or a complete loss of utility power. Most switches are set to activate when power drops below a certain threshold for a specified number of seconds. Once this happens, it sends a start signal to the generator.
The ATS will wait for the generator to stabilize before switching the load. This delay ensures a clean and safe transfer. After the utility power returns and is stable, the system triggers the reverse process, returning the load to the utility and shutting down the generator.
This is especially valuable for emergency facilities that require uninterrupted power, remote locations where fast manual switching is not possible, and industrial operations that rely on continuous energy for safety or productivity.
What Are the Disadvantages of an Automatic Transfer Switch?
While ATS systems offer unmatched convenience and safety, there are a few drawbacks to consider. The biggest disadvantage is the upfront cost. Automatic systems are more expensive than manual transfer switches, both in terms of equipment and installation.
Another potential downside is complexity. Because ATS units have more components and software-based controls, they require expert setup and regular maintenance. They can also be more difficult to troubleshoot if issues arise.
Still, for most customers, the advantages outweigh the concerns. Automatic switching offers peace of mind and speed, two things you simply can’t get from manual alternatives.
Why Customers Choose General Power
At General Power, we stock a wide range of automatic transfer switches for generators, including both ASCO and GE Zenith models. We serve commercial clients, government agencies, healthcare systems, and businesses of every size, providing end-to-end solutions that work. When you buy from General Power, you get:
- Fast quoting and same-day shipping
- Large inventory of in-stock switches and generator accessories
- EGSA certified engineers for accurate guidance and support
- Friendly bilingual staff ready to assist worldwide
- Proven reliability across over 100 countries
Whether you need a single ATS for a small generator or a large-scale solution for an entire facility, we have the tools and the team to make it happen.