- 6 leading manufacturers
- 23 additional suppliers
- 16 states and provinces
- 17 related categories
- 3 guide sections
Auto Transformers Manufacturers and Suppliers
IQS Directory provides an extensive list of auto transformer manufacturers and suppliers. Utilize our website to review and source auto transformer manufactures with our easy-to-use features which allow you to locate auto transformer companies that will design, engineer, and manufacture auto transformers for your exact specifications. Our request for quote forms make it easy to connect with leading auto transformer manufacturers. View company profiles, website links, locations, phone number, product videos, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for electrical transformers, auto transformer coils, or auto transformer alternatives.
Suppliers located in CA, IL, OH +13 more states
Contents (4 sections)
Leading Auto Transformers Manufacturers
Showing all 6
| Placement No. | Manufacturer | Location | Contact | Actions | |
|---|---|---|---|---|---|
| 1 | Triad MagneticsWith more than 500 transformer manufacturers in the world, why choose Triad? We’ve been an industry leader for over 80 years, demonstrating our commitment to quality and reliability as we continue to innovate. With over 1,500 standard off-the-shelf parts and the capability to customize any of our products to meet your specific needs, our engineering team is available to assist you. Contact us today to let us know how we can help with your next project! | Perris, CA | |||
| 2 | V-Tech Manufacturing Solutions, LLCAt V-Tech Manufacturing Solutions, we provide electric transformer solutions designed to support reliable power distribution, voltage regulation, and electrical system performance across a wide range of industrial and commercial applications. Our company focuses on delivering products that meet demanding operational requirements while maintaining quality, consistency, and long-term dependability. | Castle Rock, CO | |||
| 3 | Lenco Electronics, Inc.Established in 1973 manufacturing a wide variety of custom transformers and inductors. Transformer products range from small PC transformers to single-phase units with capacities between 10mW and 25KVA, as well as three-phase transformers from 7VA to 75KVA. With our extensive experience in custom inductors and transformers, Lenco serves as your source for all requirements. We offer affordable samples, as well as design and manufacturing support, whether you need just one unit or thousands. | McHenry, IL | |||
| 4 | Dongan Electric Manufacturing CompanyDongan Electric Manufacturing Company delivers high-quality electric transformers built for industrial, commercial, and OEM applications. With decades of experience, our team engineers reliable and efficient solutions for power distribution and electrical systems. Our extensive product line includes control transformers, industrial control transformers, encapsulated transformers, and custom-designed units, all crafted with precision and durability. | Fraser, MI | |||
| 5 | Sun TransformerAt Sun Transformer, we specialize in the design and manufacture of electric transformers built to support dependable power distribution, voltage regulation, and electrical performance across a wide range of industrial and commercial applications. Our company is focused on delivering transformer solutions that meet demanding operational requirements while maintaining reliability, efficiency, and long-term value. | McLeansboro, IL | |||
| 6 | SNC Manufacturing Company, Inc.At SNC Manufacturing Co., we specialize in the design and production of electric transformers that serve a wide range of industrial and commercial applications. As a team deeply rooted in electrical innovation, we take pride in engineering solutions that deliver consistent performance, exceptional durability, and long-term value. Our capabilities extend from custom transformer manufacturing to OEM solutions, allowing us to meet the unique needs of our customers with precision and reliability. | Oshkosh, WI |
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Leading auto transformers manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Auto Transformers Companies
The category’s other auto transformers companies are listed on their own page, with location, phone and website where each supplier provides them.
View 23 Additional Auto Transformers CompaniesDo not see your company listed in Auto Transformers?
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Quick Answers
- How many auto transformers manufacturers are listed on IQS Directory?
- 6 leading manufacturers and 23 additional suppliers.
- Where are auto transformers manufacturers located?
- The listed suppliers are in 16 states and provinces: California (6), Illinois (4), Ohio (3), Colorado (2), Connecticut (2), New Jersey (2), Arizona (1), Florida (1), and 8 more.
- How do I get quotes from auto transformers suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
Auto Transformers
An auto transformer, also referred to as an autoformer, is a general term for an electrical transformer with one winding, as compared to more traditional two-winding transformers. Transformer windings are coils wrapped around a magnetic core. Since auto transformers have fewer windings and a smaller core, they are often used as alternatives to two-winding transformers, such as isolation transformers, because they are often more efficient as well as being less-expensive and physically smaller.
Applications of Auto Transformers
Some typical applications of autotransformers include use as voltage regulators and speaker adapters, as well as to simulate low line conditions for testing, interconnect systems, and impedance matching. While auto transformers have many advantages over two-winding transformers, 3 phase transformers are used in applications in which autotransformers are not appropriate. Such applications include controlling harmonic currents and providing a source of ground fault currents. Used in equipment such as motor starters, boosters, and static balancers, auto transformers are often used in the automotive, commercial, power transmission, electronics, telecommunications, and marine industries.
Auto Transformer Design and Function
Auto transformers consist of a single winding and an input and output circuit. Common to both circuits, the winding has at minimum three electrical connection points that are referred to as taps. The voltage source and the load are both connected to two of the taps. One tap at the end of the winding serves as a common connection to the source and the load circuits. The lack of insulation between the input and output circuits is a disadvantage of auto transformers because a failure of the winding could result in the full input voltage being applied to the output.
Notable Types of Auto Transformers
There are many different types of auto transformers, including zig zag transformers, step-up transformers, step-down transformers, and variable autotransformers. Zig zag transformers are special-purpose transformers that are intended for use in providing earthing for ungrounded electrical systems. Step-down transformers convert higher voltages to lower voltages by having fewer secondary coil windings, while step-up transformers' higher number of secondary coil windings allow them to convert lower voltages to higher voltages. Variable auto transformers are only applicable for low voltage designs and are often referred to as variable AC transformers.