Pin and Sleeve Connectors in San Diego
ESU Sells New, Used & Recycled Transformers and Electrical Supplies including Twist Locks for the San Diego, Orange County, Riverside and LA areas!
One of the specialty product lines we often supply is Twist Lock. A twist-lock in electrical supplies is a type of connector that requires a twisting motion to lock the plug into the receptacle, providing a secure connection that is difficult to disconnect accidentally. These connectors are used in settings where continuous power is critical or vibration is expected, such as in hospitals, industrial facilities, construction sites, and outdoor events to prevent interruptions for machinery, tools, and lighting.
Key features and uses
Secure connection: The plug must be twisted to engage its locking blades, creating a secure connection that is resistant to being pulled out, unlike standard straight-blade plugs.
Reliable power: They are ideal for applications that require a constant and reliable power source, as they prevent accidental unplugging from vibrations or movement.
Versatile applications: You can find twist-lock connectors used for powering heavy-duty equipment like welders and pumps, temporary power systems for construction, and stage lighting and audio at events.
For Circuit Breakers, our San Diego location stocks most major brands such as Square D, Siemens, ITE, Cutler Hammer, General Electric, and more. Along with Circuit Breakers, our inventory includes panelboards up to 600V, disconnects, fuses up to 3000 amps, meter sockets, lighting ballasts, and specialty bulbs. With a reputation built on reliability and expertise, ESU, Inc. continues to be San Diego’s go-to electrical distributor and wholesaler for both standard and hard-to-find electrical supplies.
In addition to our extensive inventory, we also buy new and used electrical equipment. Whether you're upgrading, downsizing, or clearing out surplus stock, we’re interested in purchasing equipment from major brands such as SquareD, Siemens, ITE, Cutler Hammer, General Electric, Federal Pacific, Pushmatic, Zinsco, Crouse Hinds, Challenger, Westinghouse, Sylvania, and Bryant. We're especially looking for items like Circuit Breakers, Transformers, Disconnects, Panelboards up to 600V, Fuses up to 3000 Amps, Bolt Switch Pullouts, Meter Sockets, Lighting Ballasts, and specialty bulbs including Metal Halide and Sox. Reach out today to turn your unused inventory into cash.
ESU Inc also rents electrical equipment. Greenlee Wire Pullers, Conduit benders as well as many other electrician tools.
Talk directly to one of our specialists, Ed, Scott, Kevin or Chris at 858.558.2850 for assistance. Have an emergency? Call our emergency hotline 619-540-2952