Power, Distribution, and Specialty Transformer Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current. Illustrative Examples: Fluorescent ballasts (i.e., transformers) manufacturing Substation transformers, electric power distribution, manufacturing Distribution transformers, electric, manufacturing Transmission and distribution voltage regulators manufacturing
Hierarchy
| Code | Title | Description |
|---|---|---|
| 33 | Manufacturing 2-digit sector | The Sector as a Whole The Manufacturing sector comprises establishments engaged in the mechanical, physical, or chemical transformation of materials, substances, or components into new products. The assembling of component parts of manufactured products is considered manufacturing, except in cases where the activity is appropriately classified in Sector 23, Construction. Establishments in the Manufacturing sector are often described as plants, factories, or mills and characteristically use power-driven machines and material handling equipment. However, establishments that transform materials or substances into new products by hand or in the worker's home and those engaged in selling to the general public products made on the same premises from which they are sold, such as bakeries, candy stores, and custom tailors, may also be included in this sector. Manufacturing establishments may process materials or may contract with other establishments to process their materials for them. Both types of establishments are included in manufacturing. Selected industries in the Manufacturing sector are comprised solely of establishments that process materials for other establishments on a contract or fee basis. Beyond these dedicated contract manufacturing industries, establishments that process materials for other establishments are generally classified in the Manufacturing industry of the processed materials. The materials, substances, or components transformed by manufacturing establishments are raw materials that are products of agriculture, forestry, fishing, mining, or quarrying as well as products of other manufacturing establishments. The materials used may be purchased directly from producers, obtained through customary trade channels, or secured without recourse to the market by transferring the product from one establishment to another, under the same ownership. The new product of a manufacturing establishment may be finished in the sense that it is ready for utilization or consumption, or it may be semi-finished to become an input for an establishment engaged in further manufacturing. For example, the product of the alumina refinery is the input used in the primary production of aluminum; primary aluminum is the input to an aluminum wire drawing plant; and aluminum wire is the input for a fabricated wire product manufacturing establishment. The subsectors in the Manufacturing sector generally reflect distinct production processes related to material inputs, production equipment, and employee skills. In the machinery area, where assembling is a key activity, parts and accessories for manufactured products are classified in the industry of the finished manufactured item when they are made for separate sale. For example, an attachment for a piece of metalworking machinery would be classified with metalworking machinery. However, component inputs from other manufacturing establishments are classified based on the production function of the component manufacturer. For example, electronic components are classified in Subsector 334, Computer and Electronic Product Manufacturing, and stampings are classified in Subsector 332, Fabricated Metal Product Manufacturing. Manufacturing establishments often perform one or more activities that are classified outside the Manufacturing sector of NAICS. For instance, almost all manufacturing has some captive research and development or administrative operations, such as accounting, payroll, or management. These captive services are treated the same as captive manufacturing activities. When the services are provided by separate establishments, they are classified in the NAICS sector where such services are primary, not in manufacturing. The boundaries of manufacturing and the other sectors of the classification system can be somewhat blurry. The establishments in the Manufacturing sector are engaged in the transformation of materials into new products. Their output is a new product. However, the definition of what constitutes a new product can be somewhat subjective. As clarification, the following activities are considered manufacturing in NAICS: <table width=100%><tr><td width=10%> </td><td><dl><dt style='padding-left: 10px; text-indent: -10px;'>Milk bottling and pasteurizing;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Water bottling and processing;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Fresh fish packaging (oyster<br/> shucking, fish filleting);</dt><dt style='padding-left: 10px; text-indent: -10px;'>Apparel jobbing (assigning<br/> materials to contract<br/> factories or shops for<br/> fabrication or other contract<br/> operations) as well as<br/> contracting on materials<br/> owned by others;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Printing and related activities;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Ready-mix concrete production;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Leather converting;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Grinding lenses to<br/> prescription;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Wood preserving;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Lapidary work for the trade;</dt></dl></td><td width=10%> </td><td><dl><dt style='padding-left: 10px; text-indent: -10px;'>Electroplating, plating, metal<br/> heat treating, and<br/> polishing for the trade;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Fabricating signs and<br/> advertising displays;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Rebuilding or remanufacturing<br/> machinery (i.e., automotive<br/> parts);</dt><dt style='padding-left: 10px; text-indent: -10px;'>Making manufactured homes<br/> (i.e., mobile homes) or<br/> prefabricated buildings,<br/> whether or not assembling/<br/> erecting at the customers'<br/> site;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Ship repair and renovation;</dt><dt style='padding-left: 10px; text-indent: -10px;'>Machine shops; and</dt><dt style='padding-left: 10px; text-indent: -10px;'>Tire retreading.</dt></dl></td><td width=10%> </td></tr></table> Conversely, there are activities that are sometimes considered manufacturing, but which for NAICS are classified in another sector (i.e., not classified as manufacturing). They include: 1. Logging, classified in Sector 11, Agriculture, Forestry, Fishing and Hunting, is considered a harvesting operation; 2. Beneficiating ores and other minerals, classified in Sector 21, Mining, Quarrying, and Oil and Gas Extraction, is considered part of the activity of mining; 3. Constructing structures, assembling prefabricated buildings, and fabricating at the construction site by contractors are classified in Sector 23, Construction; 4. Breaking bulk and reselling in smaller lots, including packaging, repackaging, or bottling products, such as liquors or chemicals; assembling and selling computers on a custom basis; sorting and reselling scrap; mixing and selling paints to customer order; and cutting metals to customer order for resale are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade; and 5. Publishing and the combined activity of publishing and printing, classified in Sector 51, Information, transform information into a product for which the value to the consumer lies in the information content, not in the format in which it is distributed (i.e., the book or software compact disc). |
| 335 | Electrical Equipment, Appliance, and Component Manufacturing 3-digit subsector | Industries in the Electrical Equipment, Appliance, and Component Manufacturing subsector manufacture products that generate, distribute, and use electrical power. Electric Lighting Equipment Manufacturing establishments produce lighting fixtures, electric light bulbs, and parts (except glass parts and light emitting diodes (LEDs)), and other lighting equipment. Household Appliance Manufacturing establishments make both small and major electrical appliances and parts. Electrical Equipment Manufacturing establishments make goods, such as electric motors, generators, transformers, and switchgear apparatus. Other Electrical Equipment and Component Manufacturing establishments make devices for storing electrical power (e.g., batteries), for transmitting electricity (e.g., insulated wire), and wiring devices (e.g., electrical outlets, fuse boxes, and light switches). |
| 3353 | Electrical Equipment Manufacturing 4-digit industry group | Industries in the Electrical Equipment, Appliance, and Component Manufacturing subsector manufacture products that generate, distribute, and use electrical power. Electric Lighting Equipment Manufacturing establishments produce lighting fixtures, electric light bulbs, and parts (except glass parts and light emitting diodes (LEDs)), and other lighting equipment. Household Appliance Manufacturing establishments make both small and major electrical appliances and parts. Electrical Equipment Manufacturing establishments make goods, such as electric motors, generators, transformers, and switchgear apparatus. Other Electrical Equipment and Component Manufacturing establishments make devices for storing electrical power (e.g., batteries), for transmitting electricity (e.g., insulated wire), and wiring devices (e.g., electrical outlets, fuse boxes, and light switches). |
| 33531 | Electrical Equipment Manufacturing 5-digit NAICS industry | This industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers; electric motors, generators, and motor generator sets; switchgear and switchboard apparatus; relays; and industrial controls. |
| 335311 | Power, Distribution, and Specialty Transformer Manufacturing 6-digit U.S. detail | This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current. Illustrative Examples: Fluorescent ballasts (i.e., transformers) manufacturing Substation transformers, electric power distribution, manufacturing Distribution transformers, electric, manufacturing Transmission and distribution voltage regulators manufacturing |
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Classification References
- 01Establishments primarily engaged in manufacturing electronic component-type transformers are classified in U.S. Industry 334416, Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing.
Index Items
Airport lighting transformers manufacturing
Arc-welding transformers, separate solid-state, manufacturing
Autotransformers for switchboards (except telephone switchboards) manufacturing
Autotransformers manufacturing
Ballasts (i.e., transformers) manufacturing
Boosters, feeder voltage (i.e., electrical transformers), manufacturing
Burner ignition transformers manufacturing
Control transformers manufacturing
Current limiting reactors, electrical, manufacturing
Distribution transformers, electric, manufacturing
Electric furnace transformers manufacturing
Feeder voltage regulators and boosters (i.e., electrical transformers) manufacturing
Fluorescent ballasts (i.e., transformers) manufacturing
Fluorescent lighting transformers manufacturing
Generator voltage regulators, electric induction and step-type (except engine electrical equipment), manufacturing
Instrument transformers (except complete instruments) for metering or protective relaying use manufacturing
Isolation transformers manufacturing
Lamp ballasts manufacturing
Lighting transformers manufacturing
Lighting transformers, street and airport, manufacturing
Line voltage regulators (i.e., electric transformers) manufacturing
Luminous tube transformers manufacturing
Machine tool transformers manufacturing
Power transformers, electric, manufacturing
Regulating transformers, power system-type, manufacturing
Regulators (i.e., electric transformers), feeder voltage, manufacturing
Saturable transformers manufacturing
Signaling transformers, electric, manufacturing
Specialty transformers, electric, manufacturing
Substation transformers, electric power distribution, manufacturing
Transformers, electric power, manufacturing
Transformers, ignition, for use on domestic fuel burners, manufacturing
Transformers, reactor, manufacturing
Transformers, separate solid-state arc-welding, manufacturing
Transmission and distribution voltage regulators manufacturing
Voltage regulating transformers, electric power, manufacturing
Voltage regulators, transmission and distribution, manufacturing
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External Resources
Census.gov NAICS Detail
Official US Census Bureau definition and scope for NAICS 335311.
National Association of Manufacturers
Major trade association providing resources, research, and advocacy for the manufacturing industry, including transformers.
U.S. Census Bureau
Official government directory of industries listing NAICS code 335311 and related manufacturing sectors.
Electronics for America
Industry association representing the electronics manufacturing sector, including power and transformer production, with industry news and research.
