NEMA 5-15
NEMA 5-15 (Type B)
Invented in
1920s
Invented by
Harvey Hubbell
Availability
Common (US)
The North American mains plug: two flat blades and a round earth pin. The standard outlet plug across the US, Canada and much of Central America.
Technical specifications
Introduced1920s
SignalAC mains
Rating15 A / 120 V
RegionNorth America
Found on
a wall sockethouse wiring / a fixture
Recommended brands
01Leviton
02Hubbell
03Eaton
Where to buy
Europe-focused retailer searches. Some links are affiliate links and may earn a commission.
Common adapters and cables
US plug to IEC C13 power lead
Fun fact
One blade is wider than the other (polarised) so the plug only fits one way, keeping live and neutral correctly oriented.
Tips & tricks
The wider blade is neutral, never file it down to force it into a non-polarised socket.
Philosophy
Flat blades, 120 volts, and a round earth pin: the unmistakable shape of plugging in anywhere in North America.
Applications
Power
