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This class includes the manufacture of power, distribution and specialty transformers; electric motors, generators and motor generator sets; switchgear and switchboard apparatus; relays and industrial controls. The electrical equipment manufactured in this class is for distribution level voltages. This class includes: - manufacture of distribution transformers, electric - manufacture of arc-welding transformers - manufacture of fluorescent ballasts (i.e. transformers) - manufacture of substation transformers for electric power distribution - manufacture of transmission and distribution voltage regulators - manufacture of electric motors (except internal combustion engine starting motors) - manufacture of power generators (except battery charging alternators for internal combustion engines) - manufacture of motor generator sets (except turbine generator set units) - manufacture of prime mover generator sets - rewinding of armatures on a factory basis - manufacture of power circuit breakers - manufacture of surge suppressors (for distribution level voltage) - manufacture of control panels for electric power distribution - manufacture of electrical relays - manufacture of duct for electrical switchboard apparatus - manufacture of electric fuses - manufacture of power switching equipment - manufacture of electric power switches (except pushbutton, snap, solenoid, tumbler)
This class excludes: - manufacture of electronic component-type transformers and switches, see 2610 - manufacture of environmental controls and industrial process control instruments, see 2651 - manufacture of switches for electrical circuits, such as pushbutton and snap switches, see 2733 - manufacture of electric welding and soldering equipment, see 2790 - manufacture of solid state inverters, rectifiers and converters, see 2790 - manufacture of turbine-generator sets, see 2811 - manufacture of starting motors and generators for internal combustion engines, see 2930