Applications
3.2 Use of the 3VA1 breaker as a switch disconnector
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02
131
Protection of 3VA1 switch disconnectors at 50 / 60 Hz by a 3VA1 molded case circuit breaker
More combinations can be found on the Internet (
http://www.siemens.com/3VA-
Documentation).
Combinations with other protective devices can be configured at any time by means of
SIMARIS design or using the characteristics maximum let-through energy I
2
t
max
and
maximum let-through current I
c max
of the 3VA1 switch disconnector. You will find these
characteristics in the technical product data sheets and in the table in chapter Overview of
3VA1 as switch disconnectors (Page 130).
In the event of a fault, all switching devices in the affected branch must be function-tested
(see Regular maintenance (Page 419)).
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