In Brazil there is no standard voltage. Most federative units use 220 V electricity (three-phase), but some other – mainly northeastern – states are on 380 V (tree-phase). Even within some states themselves, there is not one single voltage. That is why I deemed it necessary to draw up an exhaustive list of all 27 Brazilian federative units and their respective three-phase voltages.
FEDERATIVE UNIT (STATE) |
THREE-PHASE VOLTAGE |
FREQUENCY |
EXCEPTIONS |
| Acre | 220
V |
60 Hz |
|
| Alagoas | 380
V |
60 Hz |
|
| Amapá | 220
V |
60 Hz |
|
| Amazonas | 220
V |
60
Hz |
|
| Bahia | 380
V |
60 Hz |
220 V 220 V / 380 V |
| Ceará | 380
V |
60 Hz |
|
| Distrito Federal | 380
V |
60
Hz |
|
| Espírito Santo | 220
V |
60 Hz |
380 V 220 V / 254 V |
Goiás | 380 V |
60 Hz |
| Maranhão | 380 V |
60 Hz |
|
| Mato Grosso | 220
V |
60 Hz |
380 V |
| Mato Grosso do Sul | 220 V |
60 Hz |
|
| Minas Gerais | 220 V |
60 Hz |
|
| Pará | 220
V |
60 Hz |
|
| Paraíba | 380
V |
60
Hz |
|
| Paraná | 220 V |
60 Hz |
220 V / 254 V / 380 V 380 V |
| Pernambuco | 380
V |
60 Hz |
220 V |
| Piauí | 380
V |
60 Hz |
|
| Rio de Janeiro | 220
V |
60 Hz |
380 V 220 V / 380 V |
| Rio Grande do Norte | 380
V |
60 Hz |
|
| Rio Grande do Sul | 380
V |
60 Hz |
220 V 220 V / 380 V |
| Rondônia | 220 V |
60
Hz |
|
| Roraima | 220
V |
60 Hz |
|
| Santa Catarina | 380
V |
60
Hz |
|
| São Paulo | 220
V |
60 Hz |
220 V / 380 V |
| Sergipe | 380
V |
60 Hz |
220 V / 380 V |
| Tocantins | 380
V |
60 Hz |
|