CNAE BrazilSubclass

CNAE Brazil 4321-5/00—Electrical installation and maintenance

Subclass · Classificação Nacional de Atividades Econômicas (2.3 (2025))

Where 4321-5/00 sits

  1. F Construction
  2. 43 Specialized services for construction
  3. 43.2 Electrical, plumbing, and other installations in buildings
  4. 43.21-5 Electrical installations
  5. 4321-5/00 Electrical installation and maintenance

What 4321-5/00 includes

  • The installation, alteration, maintenance, and repair in all types of constructions of: • electrical systems (cables of any voltage, wiring, electrical materials, etc.) • cables for telephone and communications installations • cables for computer networks and cable television, including fiber optics • collective and parabolic antennas • lightning rods • lighting systems • fire alarm systems • burglar alarm systems • electronic control and building automation systems
  • The installation of electrical heating equipment

What 4321-5/00 excludes

  • The installation of elevators, escalators and moving walkways, when performed by the manufacturing unit (2822-4/01) and (2822-4/02)
  • The construction of electrical power transmission and distribution networks, including rural electrification services (4221-9/02)
  • Works for the implementation of telecommunications services (construction and maintenance of long and medium-distance telecommunications networks) (4221-9/04)
  • The installation of heating systems (solar collector, gas and oil), except electric (4322-3/01)
  • The installation of fire prevention systems (4322-3/03)
  • The installation, maintenance and repair of elevators, escalators and moving walkways, when performed by a specialized unit (4329-1/03)
  • The assembly or installation of lighting and signaling systems and equipment on public roads, ports and airports (4329-1/04)
  • The monitoring, including through remote means, of electronic security and fire alarm systems, including their installation and maintenance (8020-0/01)

4321-5/00 in other systems

ANZSICAustralia · New Zealand
CNAESpain
ICNEAChina
ISICUnited Nations (global)
MSICMalaysia
NACEEuropean Union
NOGASwitzerland
SICUnited States (legacy)
SNISweden
WZGermany

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