circuit breaker Electrical Supplies Unlimited buys and sells new Transformers and more for Santa Ana and Costa Mesa areas in Orange County and surrounding areas including Newport Beach, Irvine, San Juan Capistrano, San Clemente, Dana Point, 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.

Looking for a reliable source for electrical supplies in Santa Ana, Orange County? Look no further than Electrical Supplies Unlimited (ESU). Whether you're an electrician working on a commercial project or a homeowner tackling a DIY electrical upgrade, ESU has you covered. We specialize in buying, selling, and stocking a wide range of electrical components, including new, surplus, and recycled items. From power transformers and circuit breakers to panels, fuses, switches, and more, we offer everything you need to complete your electrical projects with confidence. Our commitment to quality and customer satisfaction ensures that you'll find top-notch products at competitive prices. Trust ESU to be your trusted partner for all your electrical supply needs in Santa Ana and beyond.

Electrical Supplies Unlimited (ESU) is your go-to destination for electrical supplies in Santa Ana, Orange County. Whether you're a professional electrician or a homeowner embarking on a DIY project, ESU has the products and expertise to meet your needs. We specialize in buying, selling, and stocking a comprehensive range of electrical components, including power transformers, circuit breakers, panels, fuses, switches, and much more. Our extensive inventory features new, surplus, and recycled items, providing you with options that fit your budget and project requirements. With our commitment to quality and customer satisfaction, you can trust ESU to deliver reliable products at competitive prices. Visit us today to discover why we're the preferred choice for electrical supplies in Santa Ana 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. If you have excess Transformer inventory for sale in Santa Ana, give ESU a call!

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!