Siemens SENTRON 3WA1 Manual page 572

List of abbreviations
Abbreviation
GFx
I t
2
I t
2
g
I t
2
sd
I t
4
I tripping
I
avg
I
cm
I
cs
I
cu
I
cw
ID
IEC
I
g
I
i
I
IT
I
N
I
n
I
n max
IOM
I
r
I
sd
I
THD
L1
L2
L3
L tripping
LED
M
MLFB
N
N 117
NC
NEMA
NO
NIOSH
N tripping
NC
OSHA
570
Meaning
Ground fault extended
Current dependency of the delay time according to a formula whereby
the product of the time and the square of the current is constant
Current dependency of the delay time t
the product of the time and the square of the current is constant
Current dependency of the delay time t
whereby the product of the time and the square of the current is
constant
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 constant
Instantaneous short-circuit trip
Instantaneous average value of the current
Rated short-circuit making capacity
Rated service short-circuit breaking capacity
Rated ultimate short-circuit breaking capacity
Rated short-time withstand current
ID number
International Electrotechnical Commission
Setting for ground-fault protection
Setting for instantaneous short-circuit trip
1-pole short-circuit test current (IT systems)
Setting for N-conductor protection
Rated current
Maximum rated current
Input/output module
Setting for inverse-time delayed overload trip
Setting for short-time-delayed short-circuit trip
Setting for total harmonic distortion (THD) current
Phase 1
Phase 2
Phase 3
Inverse-time delayed overload trip
Light emitting diode
Motor
Machine-readable product designation (German acronym)
Neutral conductor
Australian approval mark
Normally closed contact
National Electrical Manufacturers Association
Normally open contact
National Institute for Occupational Safety and Health
Tripping due to overcurrent in the N-conductor
NC contact
Occupational Safety and Health Administration
according to a formula whereby
g
according to a formula
sd
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06