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A
ablative material
ambient temperature compensation
anode
anode fall region
arc
arc baffle
arc chute
arc runner
arc thermal time constant
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9
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N
O
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R
S
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B
back emf
back-up
bi-metal
BJT or bipolar junction transistor
blocking voltage
bolted three-phase fault
branch current breaker
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N
O
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R
S
T
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W
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C
cascade operation
cathode
circuit breaker
clearance
component damage curve
constriction resistance
contact arc
contact drop
contact resistance
contact spot
coordination
coordination delay
creep thermal circuit breaker
creepage
CSA (Canadian Standards Association)
CT or currect transformer
current limiter
current-zero
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D
damping constant
Darlington BJT
DC offset
DEK (German Electrotechnical Commission)
delta system
Detection period
detection threshold
device junction temperature
DIN (Dentsches Institut fur Normung)
dual-element fuse
dynamic switching loss
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O
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E
eddy current
electromechanical circuit breaker
electromotive force (emf)
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F
Faraday's Law
ferromagnetic material
field emission
flat arc
follow-up service - (Listed product)
follow-up service - (Recognized product)
forced commutation
forward voltage drop
fuse
fusible link
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N
O
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G
GS (Gerprufte Sicherheit)
GTO or gate turn-off thyristor
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H
harmonized
hot wire thermal circuit breaker
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I
i2t
IEC (International Electrotechnical Commission)
ignition temperature
IGT or insulated gate transistor
impedance angle
inrush
interruption period
interruptive capacity
ionized gas
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J
Joule heating (i2R)
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L
latch release mechanism
leakage flux
let-through i2t
listing service
locked rotor current
Lorentz force
lumped model
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N
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M
magnetic blow-out
magnetic circuit breaker
Magnetic Ohm's Law
magnetic permeability
magnetizing curve
magnetizing flux
magnetomotive force (mmf)
manufacturer's specified value
MCT or MOS controlled thyristor
Mil Stds.
Military Q.P.L. - (Qualified Products List)
molded case circuit breaker
MOS
MOSFET (or metal-oxide-semiconductor field effect transistor)
must protect curve
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N
negative differential resistance
negative sequence
nuisance trips
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N
O
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O
offset fault current
Ohm's Law
overcurrent
overcurrent protection device
overdamped
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N
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P
passive elements
per unit
phasor
phasor diagram
pinch off
plasma column
pn junction
polarized snubber circuit
positive sequence
power factor
pre-fault current
prospective fault current
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R
rated current (for a device other than an overcurrent protection device)
rated current (for an overcurrent protection device)
Recognition Service
Recognized Component Directory
reluctance
right hand rule
RMS (root mean square)
run-up period
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S
SCR or semiconductor controlled rectifier
selectivity
sensitivity
sequence network
service mark
short arc
skin effect
slow-blow fuse
smoke curve
snap thermal circuit breaker
snubber circuit
soft-start
solid-state power switch
spreading resistance
stress relief circuitry
switching angle
symmetric RMS amps
symmetrical components
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T
tesla
thermal circuit breaker
thermal emission
thermal-magnetic circuit breaker
Thevenin's network
Thevenin's theorem
thyristor
time constant
total clearing time
TRIAC
trip curve
TUV (Technischer Uberwachungs-Verein)
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U
ultimate trip current
unbalanced fault
underdamped
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Z
V
VDE (Verband Deutscher Elektrotechniker)
virtual displacement
voltage clipper
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W
weak link
webers
White Card
work function
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X
X over R ratio
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Y
Yellow Card
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Z
zener-avalanche diode
zero sequence
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