Brazil’s Plug and Power Standards

Brazil uses a unique set of electrical standards that differ from many other countries. Here are the key details:

1. Voltage and Frequency
   • Voltage: Most regions in Brazil use 127V (common in Rio de Janeiro, São Paulo, and eastern states) or 220V (common in Brasília, Minas Gerais, and southern states). Voltage can vary by city or even neighborhood.
   • Frequency: 60Hz nationwide.
2. Plug Types
   • Type N (NBR 14136 Standard):
     • The official standard since 2011, replacing older plug types.
     • Type N sockets accept two round pins (live/neutral) and a grounding pin (optional).
     • Three variants exist:
       • Type N (10A): 4.0 mm pins, for 10A devices.
       • Type N (20A): 4.8 mm pins, for 20A devices.
       • Type N (Universal): Hybrid socket compatible with both Type N plugs and older Type C plugs.
   • Older Standards:
     • Type C (Europlug, two round pins) is still found in older buildings but is being phased out.
     • Some regions previously used Type J (Swiss-style) or Type A/B (flat pins), but these are now rare.
3. Compatibility
   • Type N sockets cannot accept common European Type C/F or North American Type A/B plugs without an adapter.
   • Universal Type N sockets may accept Type C plugs (without grounding).
4. Safety Notes
   • Always check local voltage (127V or 220V) before plugging in devices.
   • Dual-voltage appliances (e.g., laptops, phone chargers) are safe, but single-voltage devices may require a transformer.
   • Adapters for Type N are widely available, but ensure they match the socket’s amperage (10A or 20A).
5. Regulatory Body
   • Standards are regulated by INMETRO (National Institute of Metrology, Quality, and Technology).

Key Takeaway: Travelers to Brazil should carry a Type N adapter and verify their device’s voltage compatibility. Dual-voltage appliances (labeled 100-240V) are ideal for flexibility.