Siemens SENTRON 3VL series - Auxiliary Switches and Alarm Switches

Functions
4.2 Internal accessories
3VL IEC molded case circuit breakers
54 System Manual, 11/2013, 110 0110 - 02 DS 03
4.2.4
Auxiliary switches and alarm switches
Auxiliary and alarm switches are used to indicate the switching status of the molded case circuit
breaker
Auxiliary switches show the position of the main contacts ("ON" or "OFF").
Alarm switches transmit a signal when the molded case circuit breaker trips due to a short-
circuit or overcurrent, or when the shunt release, undervoltage release, test button, or RCD
module trips.
Family 1
Family 2
VL160X
VL160
VL250
VL400
VL630
VL800
VL1250
VL1600
Leading auxiliary switches when switching ON and OFF
The leading auxiliary switches (changeover switches) are available as accessories for front-
operated rotary operating mechanisms and door-coupling rotary operating mechanisms.
The following applications are possible:
Leading auxiliary switch for switching from "ON" to
"OFF"
Leading auxiliary switch for switching f
rom "OFF" to
"ON"
Each version, leading auxiliary switch for switching
on and off, can be equipped with one or two
changeover switches. The connecting cables of the
auxiliary switches are 1.5 m long.
Leading auxiliary switch when switching from "OFF" to "ON" (leading NO contact)