Siemens Sentron 3VA - Testing the Tripping Mechanism

Accessories
4.5 Manual operators
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
275
4.5.4.4
Testing the tripping mechanism
Testing the tripping mechanism
The <PUSH TO TRIP> button can be used to check whether the tripping mechanism is
working properly.
Procedure
1. Turn the door mounted rotary operator to the OFF (O) position.
2. Open the panel door.
3. Use a tool to turn the shaft to the ON (I) position in order to close the molded case circuit
breaker.
Alternatively, you can use the supplementary handle for the door mounted rotary operator
to close the molded case circuit breaker, see Supplementary handle for door mounted
rotary operator (Page 276).
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 panel door.
The molded case circuit breaker can now be closed again.