Transformer manufacturer | class 2 transformers, UL listed transformers, isolation transformer, custom transformers, & more

Foster Transformer Company for Custom and Standard Transformers

We are a manufacturer of all types of transformers for a wide variety of applications including, but not limited to, low voltage lighting, battery charging transformers, appliance and vending transformers, and induction heating and heat sealing transformers.

Custom Transformers

Offering custom made transformers, power supply, inductors, solenoids, or other magnetic components or value added assemblies. Learn more about our custom transformers or Request a Quote for a Custom Transformer.

Available Transformers:

Buy Transformers Online!
We have several standard transformers available for sale online.

Need something slightly different or completely new?

We customize! Contact us for more information on our custom transformers.

We serve the industrial, commercial and medical industries such as HVAC, appliances, lighting systems, irrigation, vending machines and more.

Foster Transformer Company delivers the quality you expect at consistently competitive prices. With over 16,000 parts in our database, three quarters of a century under our belt, and hundreds of transformers certified by Underwriters Laboratories, Intertek ETL, and TUV Rheinland we have the knowledge and experience to handle your most challenging transformer designs.

Interested in a career with Foster Transformer Company? View our current career opportunities.

"Made in the USA" Transformers

Looking for "Made in the U.S.A." transformers for your ARRA, TAA, DoD or GSA funded project?

Virtually every transformer, power supply, inductor, or LED driver we design or manufacture is available Made in the U.S.A. Look for the BAA-ARRA COMPLIANT or Recovery.gov logos to identify products that qualify for the Buy American provisions of Section 1605 of the American Reconstruction and Reinvestment Act of 2009 (ARRA), the Trade Agreement Act of 1979 (TAA), the Buy American Act of 1933 (BAA) and Federal Acquisition Regulations Sub-Part 25.1(FAR).

Foster's Custom Transformer Capabilities:

This is an example of a DC Brake / Clutch Coil that was wound as a replacement for a coil that was no longer available from the manufacturer. The photo above shows the finished coil and the coil being wound as an inset.

The wire inside the coil is 2 strands of 2 AWG solid copper wire. Each strand is over 1/4" in diameter. With our in-house tooling capabilities we were able to create the tooling necessary to wind the coil quickly and at minimal expense. The finished coil has an 8 inch center opening, 12 inch overall diameter and weighs 69 pounds. The coil is wrapped with glass tape and vacuum pressure impregnated with an epoxy resin to provide enhanced electrical insulation and to protect the coil from physical damage.

Contact us for a custom transformer solution.

Foster Transformer Company for Custom and Standard Transformers

"Made in the USA" Transformers

Foster's Custom Transformer Capabilities:

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