Connecting
8.3 Main connection methods for plug-in and withdrawable version
3VL molded-case circuit breakers
114 System Manual, 03/2009, 110 0110 - 02 DS 01
8.3 Main connection methods for plug-in and withdrawable version
Main conductor connection for plug-in and withdrawable version
There are different methods of connecting the circuit breaker main conductors for the plug-in
and withdrawable version.
Plug-in socket: Connection on the front with busbar connection pieces
Plug-in sockets simplify installation and removal of the SENTRON VL circuit breakers. The
circuit breaker has been developed together with the plug-in socket in such a way as to
prevent disconnection in the "ON" position. Busbars or cables can be connected on the front.
A connection cover is supplied and is to be used both for the incoming and the outgoing
side. An additional phase barrier for insulation between the connections is possible (see
Connection covers/barriers and phase barriers). If the circuit breaker is in the connected
position, the primary voltage is supplied via multiple clamping contacts in the guide frame
Plug-in socket (front)
Plug-in sockets with busbar connection
(busbar covers are not shown)
Plug-in socket: Connection on the back with flat busbar terminals
Busbars and cables can be connected on the back. Vertical and horizontal connections are
possible depending on the configuration of the connecting bars.
Plug-in socket (rear)
Plug-in socket with rear flat busbar terminals
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