Used and surplus industrial electrical components for sale. MRO Exchange stocks a continuously rotating inventory of panel and control system electrical components available for immediate purchase and fast nationwide shipping.

Industrial electrical components are the building blocks of every control panel, machine tool enclosure, and automation system. Contactors switch motor and load circuits. Circuit breakers protect those circuits from overcurrent faults. Power supplies convert and regulate voltage for control systems and field devices. Encoders provide position and motion feedback to drives and controllers. I/O modules interface PLCs and CNC controls with the physical world. Sensors detect the presence, position, and state of objects on machines and production lines.

These components share two characteristics that make the surplus market a practical sourcing channel. First, they fail in service — often suddenly, often in production, and often on older equipment where the specific model is no longer stocked by standard distributors. Second, they are frequently discontinued as manufacturers cycle through product generations, leaving facilities that run older equipment with no direct OEM sourcing option for replacement parts.

MRO Exchange sources and stocks surplus electrical components across all of these categories, with inventory that rotates regularly as new acquisitions come in. Whether you are chasing a specific failed component on a production machine or building out a critical spares inventory for high-uptime equipment, MRO Exchange offers a practical and cost-effective sourcing option for industrial electrical components across the major control and automation platforms.

Every electrical component listed on MRO Exchange ships nationwide from our facility in Illinois at prices well below new OEM and distributor cost. Browse by subcategory above or scroll below to view our full current electrical components inventory.