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general
Legrand’s Smart Plug-In Outdoor Switch with GFCI function provides personal
ground fault protection. Conventional over-current protection devices such
as fuses and circuit breakers cannot protect people from electrical shock.
Those devices are designed to disconnect the power when currents of several
amperes flow from the hot wire to ground. However, currents as low as a few
milliamperes can be dangerous to normal healthy human beings. One ampere
equals 1000 milliamperes.
Many electrical shocks occur when the path of current flow is from the hot wire
through the metal housing of a defective tool or appliance, through the body of
a human being to the ground. Because of the resistance of the human body to
electrical current flow, the current will be quite low relative to that required to
cause conventional over-current protection devices to function. However, it is
likely to be high enough to cause a painful or possibly lethal electric shock to a
human being.
Legrand’s Smart Plug-In Outdoor Switch is designed to remove power from
the equipment loads when these loads have a potentially lethal ground current
in excess of 6 milliamperes. Normal loads will draw current from the Hot
Conductor (black wire) and return it to the power source through the Neutral
Conductor (white wire). Faulty loads can return some of the current to the power
source through a ground path such as a water pipe, gas pipe, wet floor, third
conductor (green wire), or worst of all, through a person who is in contact with an
extrinsic ground.
The Legrand Smart Plug-In Outdoor Switch’s rugged construction allows it to
be used in outdoor or indoor locations, where ground fault protection is desired.
When energized by actuation of the reset button, it will conveniently supply power
to any power tool or appliance whose load requirement does not exceed rated
voltage and currents.
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