Siemens SENTRON 3WL10 - Alarms

6.2 Alarms
The electronic trip units permanently monitor their own status and the status of all connected
devices.
Indications of the current status are output via the LEDs (electronic trip units of the 3‑series)
or via the display / warning displays (electronic trip units of the 6‑series) of the ETU.
Indications of ETUs of the 3-series
.75
.7
.6
.5
.4
.8
.85
.9
.95
1
3
2.5
2
1.5
1
3.5
4
6
8
10
4
3
2
1.5
OFF
6
8
10
12
15
.4
L
S
I
G
.3
.2
.1
OFF
.5
.6
.7
.8
1
5
3
2
1
.75
8
10
14
21
25
.4
.3
.2
.1
OFF
.08
.15
.22
.3
.4
.8
.6
.4
.2
.1
.1
.2
.4
.6
.8
I
r
= x I
n
I
sd
= x I
n
I
i
= x I
n
I
N
= x I
n
I
N
= x I
n
ACT
OFF
50%
100%
200%
Hz
60
50
t
r
@6xI
r
I
2
t
sd
t
sd
I
2
t
g
t
g

① LED protection release L
② LED protection release S
③ LED protection release I
④ LED protection release G
⑤ LED ACT
The electronic trip units of the 3-series display the indications and alarms on the LEDs on
their front face.
Note
The diagram shows the maximum possible number of LEDs. Depending on the version of your
ETU, they may also have fewer LEDs.
Depending on the color and 󹪞ashing frequency, the LEDs indicate the statuses described
below.
Operation
6.2Alarms
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 191