3644  Noncurrent-Carrying Wiring Devices

Establishments primarily engaged in manufacturing noncurrent-carrying
wiring devices. Important products of this industry include conduits
and fittings; electrical insulators, except porcelain and other ceramic
insulators and glass insulators; outlet, switch, and fuse boxes; and
pole line hardware. Establishments primarily engaged in manufacturing
ceramic insulators are classified in industry 3264, and those manufacturing
glass insulators are classified in industry 3229.