Siemens SENTRON 3VL160X System Manual page 108

Connecting
7.3 Main connection methods for plug-in and withdrawable version
Withdrawable version: Connection on the front with busbar connection pieces
The withdrawable version enables the insertion and removal of the 3VL molded case circuit
breaker without requiring the disconnection of incoming or outgoing cables or busbars. A
special operating mechanism, attached to the stationary assembly, is used to insert or
remove the molded case circuit breaker. A mechanical interlock prevents the circuit breaker
from being moved from the connected position to the disconnected position when it is
switched on. The molded case circuit breaker will trip before the multiple clamping contacts
between the molded case circuit breaker and the guide frame open. A locking device with
padlock is provided on the stationary arm of the withdrawable unit. The customer can lock
the circuit breaker in either the disconnected or connected position.
Withdrawable version with front busbar
Withdrawable version: Connection on the back with flat busbar terminals
It is possible to configure the busbars for horizontal connection when the withdrawable
assembly with rear flat busbar terminals is used. A separate kit is available for vertical
connection of molded case circuit breakers up to and including VL250.
Withdrawable version with rear flat busbar
108
connections and terminal covers
connections (rear)
Withdrawable version with front busbar
connections
Withdrawable version with front flat busbar
connections (front)
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03