Apparatus and instruments for conducting, switching, transforming, accumulating, storing, regulating or controlling the distribution or consumption of electricity; power distribution boxes; electrical power distribution blocks; uninterruptable power supply devices; electrical outlet boxes; diagnostic apparatus for electrical installations; electric terminals; electronic and electric apparatus and instruments, including parts therefor, for the production, distribution and supply of energy; electric converters; current rectifiers; line voltage regulators; converters; transformers [electricity]; electric resistances; distribution boards and distribution cabinets, batteries; battery chargers; integrated circuits (chips); printed circuit boards; distribution boards and consoles; electric and electronic switches; inverters (electricity); voltage regulators; sensors; fuses; breakers (circuit breakers); meaters and dosage dispensers; electric and electronic controllers; control and information systems for electronic switches for passing to alternative power lines; switching equipment; high voltage switchgears; low-voltage switchgear; automatic transfer switches; static transfer switches; electrical distribution transformers; computer software and hardware used in uninterruptible power supply systems, particularly in static transfer switches