NEMA 5-15 (North American 15 A/125 V grounded)
A more common style of NEMA 5-15 duplex outlet, with metal wallplate.
A more common style of NEMA 5-15 duplex outlet, with metal wallplate.
The
type B plug has two flat parallel blades like type A, but has a
round ground or earthing pin (American standard
NEMA 5-15/Canadian standard CSA 22.2, N°42).[7] It is rated for 15
amperes at 125 volts. The ground pin is longer than the live and
neutral blades, so the device is grounded before the power is
connected. The neutral blade in the type B socket is wider than the
live one to prevent type A plugs being inserted upside-down, but
type B plugs often have both pins narrow since the ground pin
enforces polarity.
The 5-15 socket is standard in all of North America (Canada, the
United States and Mexico). It is also used in Central America, the
Caribbean, northern South America (Colombia, Ecuador, Venezuela and
part of Brazil), Japan, Taiwan and Saudi Arabia.
With type B outlets, if you look directly at the outlet with the
ground at the bottom, the neutral slot is on the left, and the live
slot is on the right. They may also be installed with the ground at
the top or on either side, but the pinout going clockwise, starting
with the ground, are always ground, neutral, live. If the plug is
polarized, the widest pin is the neutral connector.
Due to the low power (1.8 kW) available from a 120 V 15A socket a
number of other NEMA connectors for higher currents and 240 V
supplies are also commonly encountered in North American homes.
In the theater, this connector is sometimes known as PBG for
"Parallel Blade with Ground", or Hubble which is a manufacturer's
name and should not be used. |
