The table below summarises the plug types, voltage and frequency of electrical current in both Costa Rica and Dominican Republic.
| Costa Rica | Dominican Republic | |
|---|---|---|
| Plug Types | A, B | A |
| Voltage | 120V | 110V |
| Frequency of electrical current | 60Hz | 60Hz |
In Costa Rica there's more than one plug type in use.
What type of plug does your appliance have?
No adaptor needed
Dominican Republic uses Socket Type A, which is the same as the plug type of your appliances from Costa Rica. You will not need an adaptor.
You will need this adaptor:
Socket Type
(Costa Rica) to Plug Type A
(Dominican Republic)
The voltages found in Costa Rica (120V) and Dominican Republic (110V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Costa Rica and Dominican Republic is exactly the same (60Hz). Timing devices and appliances that use motors will function as expected under this frequency.