Official definition

This U.S. industry comprises establishments primarily engaged in manufacturing industrial and commercial electric apparatus and other equipment (except lighting equipment, household appliances, transformers, motors, generators, switchgear, relays, industrial controls, batteries, communication and energy wire and cable, wiring devices, and carbon and graphite products). Examples of products made by these establishments are power converters (i.e., AC to DC and DC to AC), power supplies, surge suppressors, and similar equipment for industrial-type and consumer-type equipment. Illustrative Examples: Appliance cords made from purchased insulated wire Battery chargers, solid-state, manufacturing Door opening and closing devices, electrical, manufacturing Electric bells manufacturing Extension cords made from purchased insulated wire Inverters manufacturing Surge suppressers manufacturing Uninterruptible power supplies (UPS) manufacturing Cross-References. Establishments primarily engaged in--