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List of abbreviations
Abbreviation
TRIP LT
TRIP ST
TRIP TEST
t
sd
U
c
U
e
U
i
U
imp
U
THD
UVR
UVR-t
VDE
V-TAP
WBT
X
Y1
Z = ...
214
Meaning
Cause for last trip was an overload in a main conductor
Cause for last trip was a short-circuit (delayed)
Test trip for circuit-breaker testing
Delay time of short-circuit trip
Rated control circuit voltage
Rated operational voltage
Rated insulation voltage
Rated impulse withstand voltage
Setting for total harmonic distortion (THD) voltage
UnderVoltage Release (undervoltage release, instantaneous)
UnderVoltage Release - time delay (undervoltage release, delayed)
Verband der Elektrotechnik Elektronik und Informationstechnik e. V. (Ger-
man Association for Electrical, Electronic and Information Technologies)
Internal voltage tap
Web-based training
Terminal marking according to DIN
Closing coil
Supplement to article number "Further options"
Operating Instructions, 12/2022, L1V30828903001-01
3WJ Air Circuit breakers
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