Cables, electric; Circuit breakers; Coils, electric; Conductors, electric; Connections for electric lines; Copper wire, insulated; Couplings, electric; Data processing equipment, namely, couplers; Electric connectors; Electric control panels; Electric junction boxes; Electric plugs; Electric switches; Electrical terminators; Interfaces for computers; Power switches; Printed circuit boards; Relays, electric; Switches, electric; Wires, electric; Electric wires and cables