Commercial Service Electrical Equipment

Electrical Supplies Unlimited (ESU) supplies commercial service electrical equipment for electrical contractors, commercial electricians, building owners, facility managers and industrial customers. We specialize in sourcing new, used, surplus and obsolete electrical equipment for commercial service entrances, electrical distribution systems and building power applications.

ESU can supply a wide range of commercial electrical service equipment, including equipment rated from 100 amps and up, depending on the application and availability. We work with major electrical manufacturers such as Siemens/ITE, Eaton/Cutler-Hammer, Federal Pacific, General Electric, Square D, Challenger and others. With more than 40 years of experience in the electrical supply industry, we help customers locate equipment for new installations, replacement projects, system expansions and older electrical installations.

Commercial Electrical Service Equipment and Distribution Systems

Commercial electrical service equipment is essential to distributing incoming electrical power safely and reliably throughout a building or facility. Depending on the electrical system, this equipment may include service switchboards, panelboards, main disconnects, circuit breakers, safety switches and other electrical distribution components.

Electrical contractors and facility managers often need to replace existing equipment, expand electrical capacity or locate compatible components for older installations. ESU specializes in sourcing new, used, surplus and obsolete electrical equipment, providing another resource when standard distribution channels cannot supply the required model or configuration.

Commercial Switchboards and Panelboards

Commercial electrical switchboards and panelboards are important components of building power distribution systems. Switchboards distribute incoming electrical power to downstream panels, feeders and other equipment. Panelboards distribute power to individual branch circuits while providing overcurrent protection through circuit breakers or fuses.

ESU buys and sells new, used and surplus commercial electrical switchboards and panelboard switches and electrical panels. We work with a variety of manufacturers and can help customers locate equipment for replacement projects, commercial construction and existing electrical distribution systems.

Commercial Circuit Breakers, Disconnects and Safety Switches

Commercial service equipment commonly incorporates circuit breakers and disconnecting devices to provide overcurrent protection and a means of isolating electrical equipment. These components must be selected according to the electrical system's voltage, current rating, available fault current and equipment specifications.

ESU supplies commercial circuit breakers from several major manufacturers, including Siemens, ITE, Eaton, Cutler-Hammer, General Electric, Square D and others. We also source electrical safety switches and disconnect equipment for commercial and industrial applications.

Whether you need a replacement breaker, a complete disconnect or a discontinued component for an older installation, ESU can help identify available sourcing options. We can assist with locating equipment by manufacturer, catalog number, amperage, voltage and other identifying specifications.

Commercial Electrical Transformers and Supporting Equipment

Transformers are frequently used in commercial electrical systems to provide the voltage required by building distribution equipment, machinery, lighting and other electrical loads. ESU buys and sells commercial electrical transformers in a variety of configurations, including single-phase and three-phase units, dry-type transformers and other specialized transformer products.

In addition to power distribution equipment, ESU can help source supporting electrical components such as motor controls and motor starters. These products are commonly used in commercial buildings, manufacturing facilities, mechanical rooms and industrial equipment installations.

New, Used, Surplus and Obsolete Commercial Electrical Equipment

Electrical Supplies Unlimited works with electrical contractors, commercial property owners, industrial facilities, equipment dealers and maintenance departments that need dependable sources for electrical service equipment. We buy and sell new, used, surplus and obsolete products, helping customers locate equipment for new projects as well as existing electrical systems.

Our surplus and used equipment offerings can provide additional sourcing options when customers are looking for discontinued products or trying to control project costs. We also purchase excess electrical inventory and decommissioned equipment from contractors and businesses. If your company has surplus switchboards, panelboards, circuit breakers, transformers or other commercial electrical components, ESU can discuss purchasing options.

Depending on the equipment and its condition, used electrical products may be available after inspection and testing. Product condition, specifications and availability should always be confirmed before purchase.

Commercial Electrical Equipment Identification and Sourcing

Identifying the correct commercial service equipment requires more than matching an amperage rating. Manufacturer, catalog number, voltage, phase, bus rating, enclosure configuration, interrupting capacity and other specifications may affect compatibility. When requesting equipment, provide the original model or part number whenever possible, along with photographs of the equipment nameplate and relevant components.

ESU also works with a network of service providers for certain commercial equipment modifications and evaluation requirements. When a project involves UL listing or certification, the applicable requirements and approval process must be determined by the appropriate qualified organization. Equipment modifications and field evaluations should not be assumed to carry an existing UL listing or certification.

Commercial Electrical Equipment for San Diego and Southern California

ESU serves electrical contractors, businesses and industrial customers throughout San Diego, Orange and Riverside Counties. We also work with customers nationwide to source commercial electrical equipment, including hard-to-find and obsolete products that may not be readily available through traditional electrical distributors.

Whether your project involves a commercial building, manufacturing facility, warehouse, retail property or industrial electrical system, ESU can help you locate the electrical distribution equipment you need.

Contact ESU for Commercial Service Electrical Equipment

Whether you are sourcing a commercial switchboard, replacing an electrical panel component, locating obsolete service equipment or selling surplus electrical inventory, Electrical Supplies Unlimited can help. Our team has more than 40 years of experience buying and selling electrical equipment for commercial and industrial applications.

Call 858-558-2850 to discuss your commercial electrical equipment requirements. Have the manufacturer, model number, electrical ratings and equipment details available whenever possible so we can help identify appropriate sourcing options.