Racking The Circuit Breaker In The Guide Frame - Siemens SENTRON 3WA1 Manual

Description
2.2 Circuit breakers and non-automatic circuit breakers
2.2.4.3

Racking the circuit breaker in the guide frame

The withdrawable circuit breaker can be moved to three positions by means of the
racking handle. The current position is indicated by the position indicator on the circuit
breaker, see Chapter Circuit breakers (Page 28).
Depending on the position, the main and auxiliary contacts are connected or isolated:
Position
CONNECT
(connected
position)
TEST
(test
position)
DISCONNEC
T
(disconnecte
d position)
A signal diagram for the positions can be found in Chapter Position signaling switch
module for guide frame (Page 274).
Racking the circuit breaker
NOTICE
Material damage due to over-rotation of the racking handle
Over-rotation of the racking handle beyond its end stop can damage the racking
mechanism.
Once the end stop is reached, the racking handle must be rotated counterclockwise to
the rack-in position.
42
Pictogram Main circuit
display connection
CONNECT Connected
TEST Disconnected
and isolated
DISCON Disconnected
and isolated
Auxiliary Shutter
circuits
Connected Open
Connected Closed
Disconnecte Closed
d
Equipment Manual, 02/2023, 92310000002-06
Comment
Disconnector
condition
fulfilled
Tests of accessories
on the auxiliary
circuit
possible
Removal/insertion of
the circuit breaker
possible
3WA1 air circuit breaker