Jefferson Electric Transformers


A tradition of excellence for over 100 years

Jefferson Electric, a pioneer and innovator of magnetic products since 1915, has a rich tradition of supplying commercial, OEM and industrial markets. This tradition continues today, providing high-quality dry-type specialty magnetic equipment for our customers’ specific needs.

High quality products

Jefferson’s broad line of dry-type transformers are backed by an ISO based quality system and are built in accordance with appropriate UL, C-UL, CSA, and CE standards. Each transformer is tested multiple times prior to leaving the factory, ensuring each Jefferson product meets the highest industry standards for quality, durability and reliability.

Extensive inventory and fast delivery

Jefferson maintains an inventory of our top-selling products strategically located throughout the US. We routinely stock over 250 standard items to ensure we have the transformer you need when you need it.

Modified and custom designs

Our experienced design engineers are available to modify existing transformer designs or to create unique products to meet your specific requirements. Not sure what is best for your application? Our Technical Services staff is ready to help you determine the best design for your needs.