Circuit Breakers University City San Diego – New & Used Breakers, Panels & Electrical Supplies
Electrical Supplies Unlimited (ESU) is your trusted source for Circuit Breakers in University City San Diego, serving contractors, electricians, property managers, and homeowners throughout University City and surrounding communities including University Heights, Hillcrest, Golden Hill, Bankers Hill, and greater San Diego County.
We buy and sell both new and used circuit breakers, electrical panels, transformers, and electrical equipment. Whether you need replacement breakers, obsolete breakers, or hard-to-find electrical components, ESU provides dependable solutions backed by over 40 years of industry experience.
San Diego’s Trusted Circuit Breaker Supplier Since 1985
ESU has proudly served the San Diego electrical supply industry for more than four decades. As a fully stocked electrical distributor and wholesaler, we carry a wide range of residential, commercial, and industrial electrical supplies designed to meet virtually any project requirement.
Our experienced team specializes in locating discontinued, surplus, and specialty electrical products, helping customers source reliable solutions quickly and efficiently.
Leading Circuit Breaker Brands Available
Our extensive inventory includes major circuit breaker manufacturers and trusted industry brands, including:
General Electric (GE), Siemens / ITE, Cutler Hammer, Square D, Federal Pacific (FPE), Pushmatic, Zinsco, Challenger, Bryant, Westinghouse, Sylvania, Crouse Hinds, Bulldog, and many more.
Complete Electrical Supply Inventory
In addition to circuit breakers, ESU stocks a large inventory of:
- Transformers
- Panelboards up to 600V
- Disconnects & Safety Switches
- Fuses up to 3000 Amps
- Meter Sockets
- Motor Starters & Relays
- Lighting Ballasts & Fixtures
- Bolt Switch Pullouts
- Commercial & Residential Electrical Supplies
We also offer Greenlee tool rentals, conduit benders, wire pullers, and additional electrician equipment for contractors throughout San Diego County.
Specialists in New, Used & Obsolete Circuit Breakers
ESU is San Diego’s go-to source for new, used, surplus, and obsolete circuit breakers. We carry a broad range of amperages and voltages for nearly every major electrical system.
Examples of our inventory include:
- 20 Amp to 125 Amp Zinsco breakers
- 15 Amp to 100 Amp Pushmatic breakers
- 20 Amp to 1200 Amp Siemens breakers
- 15 Amp to 1200 Amp Federal Pacific (FPE) breakers
- Single-phase and 3-phase commercial breakers
Whether you need residential breaker replacements, commercial electrical upgrades, or industrial breaker solutions, our knowledgeable staff can help you select the right product for your project.
Serving University City & Greater San Diego
We proudly provide circuit breakers and electrical supplies throughout:
- Allied Gardens
- Hillcrest
- Golden Hill
- Bankers Hill
- University Heights
- Vista
- Oceanside
- Carlsbad
- San Marcos
- All San Diego County
We also ship many products nationwide for customers outside the San Diego region.
Your Local Circuit Breaker Experts
At Electrical Supplies Unlimited, we combine decades of electrical supply expertise with one of the region’s most diverse inventories of circuit breakers and electrical equipment.
Whether you’re replacing outdated breakers, sourcing specialty equipment, or upgrading electrical infrastructure, ESU delivers dependable products, expert guidance, and exceptional customer service.
Call ESU today at 858.558.2850 to speak directly with one of our electrical supply specialists and find the right circuit breaker or electrical solution for your needs.