Siemens SINOVA - List of Abbreviations; Technical Abbreviations (I-Z)

3WJ Air Circuit breakers
212 Operating Instructions, 12/2022, L1V30828903001-01
List of abbreviations
B
Abbreviation
Meaning
O
1, 2
Output information
1, 2
(Mechanical circuit breaker interlocking)
ANSI
American National Standards Institute
AUX
Auxiliary switch
AWG
American Wire Gauge
BIM
Breaker identification module
BSS
Breaker status sensor
CB1, 2, 3
Circuit breakers 1, 2, 3 (mechanical circuit breaker interlocking)
CC
Closing coil
COM
Communication module
COMM.
Communication
CONNECT
Connected position
CSA
Canadian Standards Association
CT
Current transformer
D
Duty cycle, see OP (ON period)
DAS+
Dynamic Arc-Flash Sentry
DC
Direct current
DIN
Deutsches Institut für Normung e. V. (German Institute for Standardization)
DISCON
Disconnected position
ESD
Electrostatic sensitive device
EN
European Standard
ESD
Electrostatic sensitive device
ETU
Electronic trip unit
EXTEND.
Enhanced protective function
F5
Tripping solenoid
FS
(Frame) size
G alarm
Ground-fault alarm
G tripping
Ground-fault tripping
GF
Ground fault
I
1, 2
Input information
1, 2
(Mechanical circuit breaker interlocking)
I
2
t
Current dependency of the delay time according to a formula whereby the
product of the time and the square of the current is constant
I
2
t
g
Setting for current-dependent delay time of ground-fault tripping at I
2
t
g
= const
I
2
tsd
Setting for current-dependent delay time of short-circuit trip at I
2
tsd = const
I
4
t Current dependency of the delay time according to a formula whereby the
product of the time and the value of the fourth power of the current is con-
stant
I tripping
Instantaneous short-circuit trip
Iavg
Instantaneous average value of the current