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Inserting the circuit breaker
1. Check that the position indicator on the guide frame is showing the DISCONNECT (DISCON)
position.
If a different position is displayed, use the racking handle to set the DISCONNECT position
(see Section "Moving between switch positions" below).
2. Place the circuit breaker into the racking rails of the guide frame and push it as far as it will
go.
3. Insert the racking handle, see Section "Inserting and removing the racking handle" above.
4. Turn the hand crank clockwise until the position indicator shows TEST and the circuit breaker
engages.
It is then not possible to turn the racking handle any further and the PUSH before Operating
enabling pushbutton is now flush with the front of the guide frame.
In the TEST position, the internal accessories are contacted and can be tested.
Moving between switch positions
Note
The circuit breaker engages in each switch position. To move it to the next switch position, you
have to press the unlocking button PUSH for Operating again.
Precondition: Hand crank handle is inserted (see Section "Inserting the racking handle"
above).
1. If you want to move the circuit breaker to the next switch position, press the unlocking button
PUSH before Operating again and turn the racking handle until the circuit breaker reaches the
breaker position and engages.
2. Stow the racking handle in the storage compartment again, see Section "Removing the
racking handle" below.
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03
PUSH
BEFORE
OPERATING
DISCON
TEST CONNECT
Operation
6.1 Operation
189
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