27.1 Manufacture of electric motors, generators, transformers and electricity distribution and control apparatus

This class includes manufacture of all electric motors and transformers: AC, DC and AC/DC. This class includes: - manufacture of electric motors (except internal combustion engine starting motors) - 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 power generators (except battery charging alternators for internal combustion engines) - manufacture of motor generator sets (except turbine generator set units) - rewinding of armatures on a factory basis This class excludes: - manufacture of electronic component-type transformers and switches, see 26.11 - manufacture of electric welding and soldering equipment, see 27.90 - manufacture of solid state inverters, rectifiers and converters, see 27.90 - manufacture of turbine-generator sets, see 28.11 - manufacture of starting motors and generators for internal combustion engines, see 29.31

This class includes: - 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) - manufacture of prime mover generator sets This class excludes: - manufacture of environmental controls and industrial process control instruments, see 26.51 - manufacture of switches for electrical circuits, such as pushbutton and snap switches, see 27.33