Fuse Class letter designation given fuse identify its operating and
construction characteristics.
Ground Fault Circuit device designed interrupt current circuit ground
Interrupter (GFCI) fault sensed.
German Institute for Recognized since 1975 the standards organization that
Standardization (DIN) represents German interests nationally and internationally. GFCI installed near the receptacles it
protects, overcurrent protection required separately.This usually accomplished when metal link the
fuse melts. For this reason, some circuits are equipped with a
ground fault circuit interrupter (GFCI).
120 Volts
Ground
Ground Fault Circuit Interrupter
Trip Coil
Sensing and
Test Circuit
Hot Wire
Neutral
. Some have time delay.
Service Entrance
Load Center
Transformer Secondary
Neutral Bonded Enclosure
Grounding Electrode Conductor
Grounding Electrode
Neutral
Ground Fault condition which current takes unintentional path to
ground. Fuses are available various
sizes and types.
Ground connection the earth conductive object such an
equipment chassis. Renewable fuses allow the user replace the link
and non-renewable fuses not. GFCI
circuit breaker combines protection for ground faults, overloads,
and short circuits one device. Ground faults can endanger people and damage
equipment.15
Fuse device designed open circuit when its rated current is
exceeded
