Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
43
2.2.4.4 Commissioning checklist
Checks and work to be carried out
Before commencing work on the device, observe the safety instructions in Chapter
Safety instructions (Page 19).
1. Open the circuit breaker and discharge the stored energy mechanism.
2. Pull out the racking handle (for withdrawable circuit breakers).
3. Move the circuit breaker to the test position (for withdrawable circuit breakers).
4. Press the red reset buttons to reset the mechanical reclosing lockout.
5. Connect the auxiliary and control voltages.
6. Set the parameters on the electronic trip unit.
7. Parameterize the CubicleBUS² modules.
8. Check the bus wiring and the terminating resistor.
9. Perform a communication test.
10. Test the auxiliary functions.
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