Analysis
NAICS 33593 is the 2022 NAICS industry for wiring device manufacturing, part of 3359 (Other Electrical Equipment and Component Manufacturing). Census lists 52 example activities under it in the official index.
County Business Patterns counts 552 US establishments in this code in 2023, employing 38,363 people at an average annual payroll of $69,549 per employee (52nd percentile of national industries). 19% of the establishments have fewer than five employees, which points to larger operations.
Across its national industries Census lists 52 index entries; typical ones are arrestors and coils, lighting, manufacturing and boxes, electrical wiring (e.g., junction, outlet, switch)….
Its goods appear in 26 statistical lines of the US tariff schedule, mostly under headings 8536 (electrical apparatus for switching or protecting electrical…), 8547 (insulating fittings for electrical machines, appliances or…) and 8535 (electrical apparatus for switching or protecting electrical…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.
It splits into 2 more detailed codes. The largest by establishments is 335931 (Current-Carrying Wiring Device Manufacturing) with 397.
For example, manufacturing ceramic and glass insulators are classified in 327 (Nonmetallic Mineral Product Manufacturing) instead.
Official definition
This industry comprises establishments primarily engaged in manufacturing current-carrying wiring devices and noncurrent-carrying wiring devices for wiring electrical circuits.
Source: US Census Bureau, NAICS 2022 Manual.
Not this code if…
Index entries (52)
- Arrestors and coils, lighting, manufacturing
- Boxes, electrical wiring (e.g., junction, outlet, switch), manufacturing