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

Including:

• 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