Siemens SENTRON 3VL System Manual page 334

Spare parts/accessories
15.2 Electromechanical components
Auxiliary conductor plug-in system
If a SENTRON VL circuit breaker is installed in a withdrawable or plug-in assembly, the
auxiliary conductor connection system connects the internal and external accessories (e.g.
auxiliary switch and alarm switch, shunt release, undervoltage release, motorized operating
mechanisms) to the terminals on the plug-in socket.
Figure 15-2
This plug-in connection enables two indentically equipped and wired circuit breakers to be
interchanged easily. Each socket contains 8 terminals.
The VL160X, VL160, VL250 circuit breakers can be equipped with two sockets or a total of
16 terminals.
The VL400, VL630, VL800, VL1250 and VL1600 circuit breakers with 3 sockets or
24 terminals.
Leading auxiliary switches for switching on and off
The leading auxiliary switches (changeover switches) are available as accessories for front
rotary operating mechanisms and door-coupling rotary operating mechanisms.
The following applications are possible:
● Leading auxililary switch for switching from "ON" to "OFF"
● Leading auxililary switch for switching from "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.
Figure 15-3
334
Auxiliary conductor plug-in system
Rotary operating mechanism with leading auxiliary switches
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01