2007 NAICS Definition
This industry comprises establishments primarily engaged in manufacturing current-carrying wiring devices and noncurrent-carrying wiring devices for wiring electrical circuits.
Manufacturing ceramic and glass insulators--are classified in
Cross-References. Establishments primarily engaged in--
- Subsector 327, Nonmetallic Mineral Product Manufacturing; and
- Manufacturing electronic component-type connectors, sockets, and switches--are classified in Industry 33441, Semiconductor and Other Electronic Component Manufacturing.

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