circuit breaker Electrical Supplies Unlimited buys and sells new Transformers and more for Coto de Caza, Orange County and surrounding areas including Dana Point, , San Juan Capistrano, Laguna Beach, Mission Viejo, Lake Forest, Irvine and many more. Of course, we can arrange shipment on a wide variety of products to service those outside our area. We will also purchase your used Transformers.

ESU Inc has been in the electrical supply business for over 40 years. We have a large inventory of new, surplus and recycled electrical supplies both for the commercial and residential markets.  We can offer the best pricing on your used and obsolete Electrical Transformers as our large client base allows us to give you the highest price possible.

Electrical Supplies Unlimited (ESU) is the go-to destination for a wide range of electrical supplies in the Coto de Caza area of Orange County. At ESU, we specialize in buying, selling, and stocking new, surplus, and recycled electrical power transformers, circuit breakers, and panels. Whether you're a seasoned electrician or a homeowner looking to upgrade your electrical system, we have you covered with our extensive inventory. Our commitment to quality and affordability ensures that you'll find the right products to meet your needs and budget. Trust ESU to provide reliable electrical supplies that you can count on for your projects in Coto de Caza and beyond.

Our staff is very knowledgeable and our mission is to ensure that our customers expectations are exceeded. Ask around, our reputation is what makes us! Or just call to find out yourself at 858.558.2850.

We purchase most major brands including Acme, Westinghouse, Cutler Hammer, ITE Siemens, FPE  Federal Pacific, Square D, General Electric and Zinsco products. We are a fully stocked Electrical Distributor and Electrical Wholesaler with many different lines in stock.

Our inventory consists of a large selection of Circuit Breakers, Transformers, Disconnects, Panelboards to 600v, Fuses up to 3000 Amps, Bolt Switch Pullouts, Motor Starters and Relays, Meter sockets, Lighting ballasts, Metal Halide and Sox bulbs. We also carry Lithonia Commercial and residential lighting fixtures as well.




We are transformer and electrical hardware experts. Do not hesitate to call us at 858.558.2850 to find out how ESU can help you with your excess Transformer needs.

Your one stop go-to guys. Always at your service!