Siemens 3VA1 100 A Manual page 247

Molded case circuit breakers
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Testing the tripping mechanism
The button <PUSH TO TRIP> can be pressed to perform a function test on the tripping
mechanism.
Procedure
1. Turn the door mounted rotary operator to the OFF (O) position.
2. Open the cubicle door.
3. Use a tool to turn the shaft to the ON (I) position in order to close the molded case circuit
breaker.
Alternatively, the supplementary handle for the door mounted rotary operator can also be
used to close the breaker.
4. Press the button <PUSH TO TRIP> with a tool such as a screwdriver.
The door mounted rotary operator moves from position ON (I) to position TRIP. The
molded case circuit breaker is now in the tripped state.
5. Turn the door mounted rotary operator counter-clockwise to the limit stop (RESET
position, just beyond OFF (O)).
The manual operator remains in the OFF (O) position.
6. Close the cubicle door.
The molded case circuit breaker can now be closed again.
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02
Accessories
4.5 Manual operators
247

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