Establishments primarily engaged in manufacturing electric motors (except engine starting motors) and power generators; motor generator sets; railway motors and control equipment; and motors, generators, and control equipment for gasoline, electric, and oil-electric buses and trucks. Establishments primarily engaged in manufacturing turbo-generators are classified in Industry 3511; those manufacturing starting motors and battery charging generators for internal combustion engines are classified in Industry 3694; and those manufacturing generators for welding equipment are classified in Industry 3548.

• Armatures, industrial
• Coils for motors and generators
• Collector rings for motors and generators
• Commutators, electric motor
• Control equipment for buses and trucks
• Converters, phase and rotary: electrical equipment
• Dynamos, electric: except automotive
• Dynamotors
• Exciter assemblies, motor and generator
• Frequency converters (electric generators)
• Generating apparatus and parts, electrical: except internal combustion
• Generator sets: gasoline, diesel, and dual fuel
• Generators and sets, electric: except internal combustion engine,
• Generators for gas-electric and oil-electric vehicles
• Generators for storage battery chargers, except internal combustion
• Inverters, rotating: electrical
• Motor generator sets, except automotive and turbo generators
• Motor housings
• Motors, electric: except engine starting motors and gear motors
• Power generators
• Railway motors and control equipment, electric
• Resolvers
• Rotary converters (electrical equipment)
• Rotor retainers and housings
• Rotors for motors
• Servomotors
• Sliprings for motors and generators
• Starting equipment, for streetcars
• Stators for motors
• Storage battery chargers, engine generator type
• Synchronous condensers and timing motors, electric
• Synchros
• Torque motors, electric