SIC 3644 Noncurrent-Carrying Wiring Devices

Contenidos

• NAICS CODE(S).
• FURTHER READING.

SIC 3644

The noncurrent-carrying wiring devices industry is made up of companies that primarily manufacture hardware used to support electrical systems. Popular products include electrical conduits and fittings, boxes for outlets, switches, and fuses, and pole and transmission line devices. Insulators are also included in this industry, with the exception of those made from glass or ceramics. For information about the history of electrical systems, see SIC 3641: Electric Lamp Bulbs and Tubes and SIC 3643: Current-Carrying Wiring Devices.

NAICS CODE(S)

335932

Noncurrent-Carrying Wire Device Manufacturing

According to the U.S. Census Bureau, 165 establishments operated in this category for part or all of 2004. Industry-wide employment totaled approximately 13,924 workers receiving a payroll of nearly $575 million. Companies in this industry tended to be smaller in size with about 59 percent employing less than 100 workers. The Annual Survey of Manufactures reported that overall shipments for the industry were valued at nearly $4.9 billion in 2005. Additionally, for the overall "wiring device manufacturing" industry (also including current-carrying wiring device manufacturing), a combined total of 30,583 employees (from a total 45,222 employees) worked in production in 2005, putting in more than 62 million hours to earn wages of more than $1.0 billion.

Wiremold Co. of West Hartford, Connecticut, led the industry with nearly $1.2 billion in 2005 sales and 750 employees. In second place was Baltimore, Maryland-based NGK-Locke Inc. with $941 million in operating revenue during 2004 and 3,700 employees. Rounding out the top three was EGS Electrical Group LLC of Skokie, Illinois, with $653 million in 2005 sales and 3,500 employees.

Most noncurrent-carrying wiring products are consumed by the nonresidential construction sector. Of the industry's shipment values in 2005, a leading 52 percent was attributed to electrical conduit and fittings, which includes conduit, connectors, junction boxes, and related products. Pole and transmission line hardware, which was purchased by cable television and utility companies, comprised about 17 percent of shipment values. The remainder of the market was highly fragmented and classified under the miscellaneous other noncurrent-carrying wiring devices and supplies such as boxes, covers, and bar hangers.

Rampant infrastructure growth and commercial development following...