Alarms - Siemens SENTRON 3WL10 Series Manual

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 the ETUs of the 3-series
①
②
③
④
⑤
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 flashing frequency, the LEDs indicate the statuses described
below.
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
LED protection release L
LED protection release S
LED protection release I
LED protection release G
LED ACT
Operation
6.2 Alarms
161