Surplus Electrical Power TransformersElectrical Supplies Unlimited buys and sells new power Transformers and more for Carlsbad, North San Diego County and surrounding areas including Oceanside, Encinitas, Del Mar, Cardiff, Vista, San Marcos, Escondido 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.

Electrical Supplies Unlimited (ESU) is your trusted source for premium electrical components in Carlsbad, San Diego. At ESU, we pride ourselves on being a comprehensive hub for electricians, offering a wide range of high-quality electrical supplies. Whether you're in need of transformers, circuit breakers, panelboards, fuses, or any other essential component, ESU has you covered. Our commitment to excellence extends to every aspect of our business, from sourcing top-tier products to providing unparalleled customer service. As your go-to supplier, we streamline the procurement process, ensuring that electricians in Carlsbad and throughout San Diego have convenient access to the vital equipment they require to power up their projects efficiently and safely.

Electrical Supplies Unlimited (ESU) is your premier destination for electrical solutions in Carlsbad, San Diego. As a reliable supplier catering specifically to electricians, we specialize in buying, selling, and stocking a diverse range of electrical transformers, circuit breakers, panelboards, fuses, and more. ESU prides itself on delivering not just products, but a seamless experience for electricians seeking quality components for their projects. With our extensive inventory and commitment to customer satisfaction, we strive to be the preferred choice for electricians in Carlsbad and the broader San Diego area. Trust ESU to provide the essential electrical supplies you need, empowering you to meet your project requirements with confidence and efficiency.

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.

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!