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Dongan Electric Manufacturing Company
2987 Franklin Street, Detroit MI 48207
Toll Free 800-428-2626 (USA only)
Phone 313-567-8500 (Outside US)

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Welcome to Dongan

We offer a full-line of cataloged standard transformers that are inventoried at our factory and warehouses in the United States. We also manufacture custom-designed transformers that can be shipped within 10 working days under most circumstances. Need it quicker than that? No problem! We also have expedited service available as soon as three-day delivery even for a unit that has not been previously designed (subject to plant loading). Most of our products are UL and CSA listed and we also have CE approved products that are licensed through TUV Rhineland. We also meet NEMA, IEEE and ANSI standards. As a result, you get exactly what you want, built for you to the highest standards and delivered quick - when you need it!


New Product Announcement

We now offer a full line of Class 2 transformers built to your specifications. These are small inherently or non-inherently protected transformers from 10VA through 80VA. They can have simple lead wire terminations or quick on connectors and lead length can be customize as the colors can be.

Class 2 Brochure


Website Under Construction

Notice:  Important Update regarding Agency Listings.

All catalog references to products noted as CSA Certified are being changed to read certified to CSA Standards through Underwriters Laboratories (UL).  During reconstruction of our website catalog pages are being revised to remove CSA certification references and CSA file numbers and replaced with Underwriters Laboratories certification to CSA standards.   Please contact the factory or your Dongan Representative for additional clarification.


Dongan has been selling through Electrical distributors in the USA and Canada since our inception and they remain an integral market channel for us. We offer finished goods inventory in our factory and at several warehouses throughout the USA. We have local sales representatives in most of the 50 states.

List of Our Distributors

Our Capabilities Brochure


Our Capabilities Brochure Espanol


Dongan is Global supplier throughout most of the world. We have access to all major shipping methods to get our products from our manufacturing facility in Ohio to all countries around the Globe. We have some local sales representatives in some countries and are looking for more representation through Asia and Europe.

Dongan Europe

Windmolen 22

Almelo 7609 

The Netherlands