The table below summarises the plug types, voltage and frequency of electrical current in both Cayman Islands and Dominican Republic.
|Cayman Islands||Dominican Republic|
|Plug Types||A, B||A|
|Frequency of electrical current||60Hz||60Hz|
In Cayman Islands 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 Cayman Islands. You will not need an adaptor.
You will need this adaptor:
Socket Type B
(Cayman Islands) to Plug Type A
The voltages found in Cayman Islands (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 Cayman Islands and Dominican Republic is exactly the same (60Hz). Timing devices and appliances that use motors will function as expected under this frequency.