Short answer
The product is within the definition if it relies on electric current or electromagnetic fields to work, or is intended to generate, transmit, or measure current or electromagnetic fields, and its rated working voltage does not exceed 1,500 V DC or 1,000 V AC. The definition also includes supporting products. Equipment involved in producing, transmitting, or distributing electrical energy is expressly excluded. MIIT implementation guidance also treats military-use equipment, equipment for special or extreme environments, export-only equipment, temporary imports or equipment entering China for repair but not sale, research or test prototypes, exhibition or display items not for sale, and their dedicated or customised supporting products as outside scope.
The Measures apply when a covered product is produced, sold, or imported within China. They assign different duties to designers, producers, importers, and sellers, so record each China activity and actor rather than treating market presence as a single role.
Articles 2 and 3 establish the China activity trigger, the electrical and electronic product definition, the voltage ceilings, inclusion of supporting products, and the exclusion for equipment involved in producing, transmitting, or distributing electrical energy.
Official explanatory guidance. Question 11 identifies additional use-specific exclusions.