plugverdict

Type B plugs and sockets

A Type B plug, photographed Type B plug diagram

Type B (NEMA 5-15, grounded)

3 pins Earthed

Photo: Shadypalm88 (English Wikipedia) · CC BY-SA 3.0 · Wikimedia Commons, cropped and resized. All credits.

What fits into a Type B socket

PlugFitsEarth
yeslost
A Type A plug has no earth pin at all, so nothing gets earthed in a Type B socket. Only matters if the thing you are plugging in needs one
yespreserved

Fits but drops the earth: Type A. Harmless on a double-insulated charger; a shock risk on anything with a metal body.

Where a Type B plug goes

Countries using Type B

American Samoa, Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Belize, Bermuda, Bolivia, Bonaire, Sint Eustatius and Saba, British Virgin Islands, Canada, Cayman Islands, Colombia, Costa Rica, Cuba, Curaçao, Dominican Republic, Ecuador, El Salvador, French Polynesia, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Jordan, Laos, Lebanon, Liberia, Mexico, Micronesia, Montserrat, Nicaragua, Niger, Palau, Panama, Paraguay, Peru, Philippines, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Sint Maarten, Taiwan, Thailand, Trinidad and Tobago, Turkmenistan, US Virgin Islands, United States, Venezuela, Vietnam