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:
Distribution transformers, electric, manufacturing Substation transformers, electric power distribution, manufacturing Fluorescent ballasts (i.e., transformers) manufacturing Transmission and distribution voltage regulators manufacturing
Cross-References. Establishments primarily engaged in manufacturing electronic component-type transformers are classified in U.S. Industry 334416, Electronic Coil, Transformer, and Other Inductor Manufacturing.
| Go to: | No change 2002 to 2007 | No change 1997 to 2002 | 2002 Economic Census and other data sources |
| 2007 NAICS | 2002 NAICS | 1997 NAICS |
Corresponding Index Entries |
|---|---|---|---|
| 335311 | 335311 | 335311 | Airport lighting transformers manufacturing |
| 335311 | 335311 | 335311 | Arc-welding transformers, separate solid-state, manufacturing |
| 335311 | 335311 | 335311 | Autotransformers for switchboards (except telephone switchboards) manufacturing |
| 335311 | 335311 | 335311 | Autotransformers manufacturing |
| 335311 | 335311 | 335311 | Ballasts (i.e., transformers) manufacturing |
| 335311 | 335311 | 335311 | Boosters, feeder voltage (i.e., electrical transformers), manufacturing |
| 335311 | 335311 | 335311 | Burner ignition transformers manufacturing |
| 335311 | 335311 | 335311 | Control transformers manufacturing |
| 335311 | 335311 | 335311 | Current limiting reactors, electrical, manufacturing |
| 335311 | 335311 | 335311 | Distribution transformers, electric, manufacturing |
| 335311 | 335311 | 335311 | Electric furnace transformers manufacturing |
| 335311 | 335311 | 335311 | Feeder voltage regulators and boosters (i.e., electrical transformers) manufacturing |
| 335311 | 335311 | 335311 | Fluorescent ballasts (i.e., transformers) manufacturing |
| 335311 | 335311 | 335311 | Fluorescent lighting transformers manufacturing |
| 335311 | 335311 | 335311 | Generator voltage regulators, electric induction and step-type (except engine electrical equipment), manufacturing |
| 335311 | 335311 | 335311 | Instrument transformers (except complete instruments) for metering or protective relaying use manufacturing |
| 335311 | 335311 | 335311 | Isolation transformers manufacturing |
| 335311 | 335311 | 335311 | Lamp ballasts manufacturing |
| 335311 | 335311 | 335311 | Lighting transformers manufacturing |
| 335311 | 335311 | 335311 | Lighting transformers, street and airport, manufacturing |
| 335311 | 335311 | 335311 | Line voltage regulators (i.e., electric transformers) manufacturing |
| 335311 | 335311 | 335311 | Luminous tube transformers manufacturing |
| 335311 | 335311 | 335311 | Machine tool transformers manufacturing |
| 335311 | 335311 | 335311 | Power transformers, electric, manufacturing |
| 335311 | 335311 | 335311 | Regulating transformers, power system-type, manufacturing |
| 335311 | 335311 | 335311 | Regulators (i.e., electric transformers), feeder voltage, manufacturing |
| 335311 | 335311 | 335311 | Saturable transformers manufacturing |
| 335311 | 335311 | 335311 | Signaling transformers, electric, manufacturing |
| 335311 | 335311 | 335311 | Specialty transformers, electric, manufacturing |
| 335311 | 335311 | 335311 | Substation transformers, electric power distribution, manufacturing |
| 335311 | 335311 | 335311 | Transformers, electric power, manufacturing |
| 335311 | 335311 | 335311 | Transformers, ignition, for use on domestic fuel burners, manufacturing |
| 335311 | 335311 | 335311 | Transformers, reactor, manufacturing |
| 335311 | 335311 | 335311 | Transformers, separate solid-state arc-welding, manufacturing |
| 335311 | 335311 | 335311 | Transmission and distribution voltage regulators manufacturing |
| 335311 | 335311 | 335311 | Voltage regulating transformers, electric power, manufacturing |
| 335311 | 335311 | 335311 | Voltage regulators, transmission and distribution, manufacturing |
