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Best Automatic Transfer Switch Manufacturers of 2023

Looking for the best ATS manufacturer, you can rely on? In this post, we’ve compiled a list of the Best Automatic Transfer Switch companies from across the world, along with some of their premium transfer switches, for your business. The different ATS product kinds and how they work are discussed in great detail in this reference. Continue to read!

Automatic Transfer Switch Manufacturer (1)
Automatic transfer switches are a reliable resource for sending meaningful load connections.
There is a transfer of power between the primary power source and the backup power source. Data centers, businesses, and other facilities that need to operate continuously employ alternative energy sources. They utilize it for generators or backup utilities when the primary source is unavailable.
Best Automatic Transfer Switch Manufacturers of 2023

Automatic Transfer Switch Market Overview

With the help of an automatic transfer switch, the electrical load can be switched between two power sources automatically. When a utility line goes down, it is utilized in industrial, commercial, and residential buildings to transition from utility lines to backup power generators.

Market growth for automatic transfer switches is anticipated to increase by USD 248.77 mn between 2021 and 2026. Additionally, according to Technavio, the market’s growth momentum will pick up at a CAGR of 6.75% throughout the projection period.

List of Automatic Transfer Switch Manufacturers in 2023

Here are top Automatic Transfer Switch Manufacturers that can be relied on:

1.ABB Automatic Transfer Switch

ABB offers automatic transfer switches such as ZTX T-series and ZTS T-series switches, as well as TruONE ATS. Intuitive transfer switch producer for docks, data centers, airports, and industrial facilities. Available in a current range of 160 to 1,600 A. Double throw, a mechanically interlocked contactor mechanism, electrical operation, and mechanical holding are among the features. There are also manual transfer switches available. Services include lifecycle management, engineering, consulting, installation, upkeep, replacement, and training. Serves the pulp and paper, aluminium, cement, automotive, chemical, data center, marine, metal, food, beverage, mining, power generation or distribution, automation, printing, water, wind, and solar industries.

Homepage: https://global.abb/group/en
About: https://global.abb/group/en/about
Products: https://new.abb.com/offerings
ATS: https://new.abb.com/low-voltage/products/switches/automatic-transfer-switches

Product Features
Company Name Found Year Country CEO
1988 Zürich, Switzerland Bjorn Rosengren

2.Scott's ATS

Scott’s Emergency Lighting & Power Generation, Inc. is a supplier of transfer switches for public buildings, hospitals, manufacturing companies, universities, municipalities, retail establishments, and homes. Additionally, services for battery testing and charging, field service troubleshooting, diagnostics, repair, and preventative maintenance are offered.

Homepage: https://www.selpg.com/
Services: https://www.selpg.com/services
Generators: https://www.selpg.com/generators
Inverters: https://www.selpg.com/inverters

Product Features
Company Name Found Year Country CEO
Scott’s Emergency Lighting & Power Generation, Inc. 1971 Bensalem, Pennsylvania Wayne Scott, Jr

3.Solar Biz ATS

Solar Biz Inc. is a distributor of dual, manual, and automatic generator transfer switches. Includes options for ground box terminals and neutral busbars. Distributing equipment for renewable energy sources, such as solar panels, inverters, power centers, solar charge controllers, batteries, monitors, system controllers, enclosures, circuit protectors, generators, hydro and wind products, water pumps and filters, barbecues, heaters, and other appliances. Applications both on and off the grid can use the products.

Homepage: https://www.thesolarbiz.com/
About: https://www.thesolarbiz.com/about-us/our-story.html
Products: https://www.thesolarbiz.com/our-products/solar-panel.html
Cummins Automatic Transfer Switch: https://www.thesolarbiz.com/cummins-ra100-se-100a-3r-automatic-transfer-switch.html

Product Features
Company Name Found Year Country CEO
Solar Biz Inc. 1969 Silver City, New Mexico Tom Duffy

4.TVW Automatic Transfer Switch

TVW Electrical Supplies is a supplier of automatic transfer switches. When the utility power fails, automated transfer switches are utilized to switch the power automatically to the generator. With standby and portable generators, automatic transfer switches are used.

Homepage: https://www.tvwdecatur.com/
About: https://www.tvwdecatur.com/about-us/
Products: https://www.tvwdecatur.com/electrical-products/
Contact: https://www.tvwdecatur.com/contact-us/

Product Features
Company Name Found Year Country CEO
TVW Electrical Supplies 1986 North Alabama Kent Lawrence


CAMSO is a producer of automatic transfer switches. Their automatic power transfer switches offer high arc-quenching performance, dependable mechanical interlock, and fast transfer rates. They provide the PC-level W Series, which includes the W2 and WN3 models. A two-stage automatic transfer switch is the W-2. The button immediately switches power from one source to another after receiving a switching signal, passing through an OFF position in the middle. The current range is 20A–500A.
Homepage: https://www.camsco.com.tw/
About: https://www.camsco.com.tw/aboutus.htm
Automatic Transfer Switches: https://www.camsco.com.tw/automatic-transfer-switch.htm

Product Features
Company NameFound YearCountryCEO
CAMSO Electric Co Ltd.1979ChinaPierre Marcouiller

6. Emergency Transfer Switch

Suppliers of automatic transfer switches and ATS controls, including programmable microcomputer control panels (PMCP) and mini-controllers, are designed, manufactured, and installed. Low voltage (directly between 120 and 600 volts) and medium voltage (2K to 15 kV) features of the PMCP include:
– Accurate RMS 3-phase voltage sensing
– Programmable transfer schemes
– Soft loads with control inputs
– Delayed transitions with programmable centre-off delays
– Load addition/shed
– Load disconnect
The microcontroller manages breaker pair transfer systems and solenoid-operated automated transfer switches.
Homepage: https://etccontrols.com/
About: https://etccontrols.com/emergency-transfercontrols-about-/
Services: https://etccontrols.com/services/emergencytransfercontrols-transfer-controls/
Automatic Transfer Switches: https://etccontrols.com/services/emergencytransfercontrols-transfer-controls/

Product Features
Company NameFound YearCountryCEO
Gustavo Preston Company1881 United StatesDavid Pellegrini

7.Controlled Power Automatic Transfer Switch

Wholesaler of liquid- and air-cooled generators’ two-pole automatic transfer switches, both new and old. With a power supply of 120/240 V and 50/60 Hz, 50 A, 100 A, and 200 A currents are available for NEMA 1 & 3R switches.
Homepage: https://www.controlledpwr.com/
About: https://www.controlledpwr.com/our-company/who-we-are/
Contact: https://www.controlledpwr.com/contact-us/

Product Features
Company NameFound YearCountryCEO
Controlled Power Company1971Troy, M+ichigan Nick Pascoe

8.Eaton ATS

Eaton is a manufacturer of automatic transfer switches for switching loads and electrical distribution systems from one power source to another. Additional services like advising, training, assembly and storage are also offered. The specification calls for continuous current ratings of up to 5,000 A at 600 V. serves the oil and gas, mining, food and beverage, healthcare, and aerospace industries.
Homepage: https://www.eaton.com/us/en-us.html
About: https://www.eaton.com/us/en-us/company/about-us.html
Services: https://www.eaton.com/us/en-us/services.html

Product Features
Company Name Found Year Country CEO
Eaton 1897 Bloomfield, New Jersey, United States Craig Arnold

9.Global Power Supply ATS

Global Power Supply supplies automatic transfer switches that are dependable, strong, versatile, and small for moving vital loads and electrical distribution systems from one power source to another. Automatic transfer switches from 30A to 5000A in various sizes are offered by GPS. It contains distinctive features that make it simple to install, integrate, and use. suitable for a wide range of industrial and commercial situations, from emergency standby applications to critical power processes. GPS provides options for open transition, closed transition, and bypass isolation.
Homepage: https://www.globalpwr.com/
About: https://www.globalpwr.com/about-gps/
Solutions: https://www.globalpwr.com/industrial-power-solutions/
Automatic Transfer Switches: https://www.globalpwr.com/industrial-power-solutions/automatic-transfer-switch-ats/

Product Features
Company Name Found Year Country CEO
 Global Power Supply LLC. 2004 Santa Barbara, California Trent Robbins

10.PTS APAC Private Limited ATS

PTS APAC Private Limited is a Singapore technology business that produces a comprehensive range of transfer switches under the domestic brand “PTS” that are intended to transfer electrical loads seamlessly between the alternative power sources in your need.
Power transfer switches can be inspected, tested, and maintained without cutting the power. In less than 100 milliseconds, the PTS series of Closed Transition Transfer Switches provide closed transition overlapping of sources. Its capacity to transfer in a closed transition mode while both sources are inside predetermined bounds is what makes it so successful.
Homepage: https://www.ptsapac.com/
About: https://www.ptsapac.com/about-us/
Products: https://www.ptsapac.com/our-products/
Automatic Transfer Switches: https://www.ptsapac.com/our-products/pts-low-voltage-lv-automatic-transfer-switches/ts-iaccl-automatic/

Product Features
Company Name Found Year Country CEO
PTS APAC Private Limited 2020 Singapore Kuan Heng Lim(George)

11.Chint Shield Automatic Transfer Switch

Chint Shield provides a comprehensive low-voltage electrical solution for residential, commercial, and industrial applications. Many of the items are designed, made, and assembled in the UK. Chint Shield has built a strong commercial and technical team through consistent investment in excellent personnel, enabling it to serve the needs of its expanding customer base from its position just south of Manchester.

Homepage: https://chint.co.uk/
About: https://chint.co.uk/about-us/
Services: https://chint.co.uk/product-category/energy-distribution/#
Automatic Transfer Switch: https://chint.co.uk/product-category/industrial-controls/automatic-transfer-switches/

Product Features
Company Name Found Year Country CEO
Chint Shield 2004 United Kingdom Graham Chadwick

12.Asco Power Technologies ATS

Asco Power Technologies offers a variety of ATS solutions that make it simple to move loads between utility and backup power sources in order to increase power availability. ASCO ATS are UL 1008 rated and made to work with almost any generator. Find a device to support applications from commercial businesses to mission-critical facilities by browsing on their ATS offerings.

Asco Power Technologies Homepage: https://www.ascopower.com/us/en/
About Asco Power Technologies: https://www.ascopower.com/us/en/about-us/
Products: https://www.ascopower.com/us/en/products/
Automatic Transfer Switches: https://www.ascopower.com/us/en/product-subcategory/89094-automatic-transfer-switches/

Product Features
Company Name Found Year Country CEO
Asco Power Technologies 1888 Brantford, Canada Michael Quinn

Frequently Asked Questions About ATS

ATS Typical Transfer Sequence

1. Regular utility power sources are ineffective.

2. When the electricity from the generator or backup utility feed is stable, and within the permitted voltage and frequency limitations, the transfer switch switches the load to the emergency power source. The transfer procedure can be self-acting or manually triggered, depending on the requirements and preferences of a facility.

3. When utility power is restored, the transfer switch switches the load from the emergency power source to the regular power source. Either manually or automatically initiating the transfer process.

Businesses That Benefit the Most from Automatic Transfer Switch

Any business, no matter how big or little, can benefit from an automatic transfer switch. And we guarantee that you’ll think the cost was well spent. But when you consider an automatic transfer switch, certain businesses spring to mind, such as:

– Hospitals
– Government buildings
– Commercial structures
– Factories
– Warehouses
– Restaurants
– Schools

Things to Consider in Choosing the Right ATS Manufacturer for you business

The automatic Transfer Switch is permanently installed in your building and connected to your backup generator and your most crucial circuits. The switch can start the generator and automatically switch the loads from the utility grid to the generator if it detects a disturbance in the utility electricity.

Critical equipment disruptions are minimized as a result of this almost instantaneous action. There are various things to think about when choosing an automatic transfer switch for your facility:

Total Amperage

Amperage is a way to measure electrical current. A breaker will trip if you exceed the number of amps that each circuit in your building is designed to withstand to keep the wire from overheating and catching fire. The total amperage of all the courses that transfer switches will be switching is indicated by their current rating, which is another feature.

Once you’ve determined which circuits you’ll need to maintain electricity during a power loss, sum up all the devices on those circuits’ current demands, then pick a transfer switch that offers a sufficient margin for future development without exceeding that rating.


Commercial and industrial buildings’ circuits can run at various voltages, such as 208/240 volts, 480 volts, and 575/600 volts. Make that your transfer switch supports the voltages of your equipment and circuits. All of the automatic transfer switches we provide at PSI Power & Controls have multi-tap transformers that can help 208/240, 480, and 575/600 volts.


Watts are a gauge of strength. The watts of an electrical circuit are calculated by multiplying the circuit voltage by the device’s amperage. Many generators are rated in watts or kilowatts, so it’s critical to understand the total amperage and wattage of the loads you’ll be powering if you want to match the generator output to the transfer switch’s current restrictions.


This article provides a brief overview of each manufacturer and their automatic transfer switch, highlighting their strengths and unique selling points. Overall, the article serves as a useful guide for those seeking to identify top ATS manufacturers in the world.


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