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Installing/mounting
7.1 Installation methods
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01
85
Mounting rail connection
The appropriate safety clearances must be observed. Terminal covers or phase barriers are
available for the front connecting bars. Circuit breakers cannot be removed from the plug-in
socket in the "On" position. The circuit breaker will switch to the "tripped" position if attempts
are made to remove it in the "ON" position.
Withdrawable version
SENTRON VL circuit breakers can be used as withdrawable devices. They can be
connected on either the front or the back. Safety covers are provided and are required for
final installation.
In the connected position, the circuit breaker is completely engaged, and all contacts -
supply, outgoing and auxiliary contacts - are connected to the guide frame. The circuit
breaker is ready for operation.
Note
Safety interlock
A safety interlock prevents the circuit breaker from being removed when it is switched on.
The safety interlock causes the circuit breaker to switch off so that the arc which occurs
inside the circuit breaker when current flows can be extinguished.
Summary of Contents for SENTRON 3VL series
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Page 10: ...Table of contents 3VL molded case circuit breakers 10 System Manual 03 2009 110 0110 02 DS 01 ...
Page 350: ...Correction sheet 3VL molded case circuit breakers 350 System Manual 03 2009 110 0110 02 DS 01 ...
Page 358: ...Glossary 3VL molded case circuit breakers 358 System Manual 03 2009 110 0110 02 DS 01 ...
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