Temp Power Systems in San Diego
Temporary power is a temporary electrical supply system used for construction sites, outdoor events, and other situations where a permanent electrical connection is not yet available or practical. It provides power for tools, lighting, equipment, and safety systems using a setup that can include generators or utility connections, distribution panels, wiring, outlets, and essential safety measures like grounding and GFCIs.
Electrical Supplies Unlimited (ESU) has been proudly supporting San Diego electricians and homeowners for decades with a complete selection of high-quality electrical supplies and tools. From small residential projects to large commercial installations, ESU provides the parts and expertise needed to get the job done right. Their extensive inventory includes everything from panelboards, breakers, and fuses to transformers and temporary power systems, ensuring customers always have access to the essential components they need.
With over 40 years of experience in the electrical supply industry, ESU understands the unique needs of San Diego’s electrical professionals and property owners. The company’s knowledgeable staff goes above and beyond to help customers find the right products—whether it’s replacing outdated components, upgrading electrical panels, or setting up temporary power for a job site. Their commitment to fast service, product availability, and personalized attention has made ESU a trusted name throughout the region.
ESU takes pride in being more than just a supplier—they’re a partner to San Diego’s electricians and contractors. By offering new, surplus, and recycled equipment, they provide cost-effective solutions without compromising quality or performance. Whether you’re sourcing a specific fuse, need a reliable transformer, or are setting up a temporary power system for a construction project, ESU has the tools, parts, and expertise to help you complete your work safely and efficiently.
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!