circuit breaker Electrical Supplies Unlimited buys and sells new power Transformers and more in Oceanside, North San Diego County and surrounding areas including Vista, Carlsbad, San Marcos, Fallbrook and 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 your trusted partner in Oceanside, San Diego, for all your electrical needs. At ESU, we specialize in buying, selling, and stocking a comprehensive range of electrical supplies, including transformers, circuit breakers, panelboards, fuses, and more. Catering specifically to electricians in the Oceanside area, we take pride in offering top-quality products that meet the highest industry standards. Our extensive inventory ensures that electricians have access to the essential components they require, empowering them to complete projects efficiently and effectively. With a commitment to reliability and excellence, Electrical Supplies Unlimited is your go-to source for premium electrical solutions in the vibrant San Diego community.

Electrical Supplies Unlimited (ESU) is your one-stop destination for superior electrical components in Oceanside, San Diego. Specializing in buying, selling, and stocking a wide array of products, including transformers, circuit breakers, panelboards, fuses, and more, ESU is dedicated to meeting the diverse needs of electricians in the region. Our comprehensive inventory, coupled with a focus on quality and reliability, ensures that electricians have a reliable partner for sourcing top-notch electrical supplies. Whether you're working on a residential, commercial, or industrial project, ESU provides the essential components that electricians trust. Choose Electrical Supplies Unlimited for unmatched service, a vast selection of electrical products, and a commitment to powering the success of electricians throughout Oceanside 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!