Type B electrical plug has two flat parallel pins and a round grounding (earth) pin. Earth pin is longer than the other two so that the device is grounded before the power is connected. American and Japanese plus are similar in design. Type B plugs are rated at 15 amps.

Latin American and Caribbean countries that use Type B Plugs:
Antigua and Barbuda
Aruba
Bahamas
Bermuda
British Virgin Islands
Cayman Islands
Colombia
Costa Rica
Cuba
Dominican Republic
Ecuador
El Salvador
Guatemala
Guyana
Haiti
Honduras
Jamaica
Mexico
Nicaragua
Panama
Peru
Saint Kitts and Nevis
Trinidad and Tobago
Turks and Caicos
United States Virgin Islands
Venezuela