Status of the circuit breaker
3.2 The ETU600 electronic trip unit as an information center
3WA Air Circuit Breaker Communication
16
System Manual, 11/2021, 92310000004-02
3.2
The ETU600 electronic trip unit as an information center
The ETU600 electronic trip unit of the 3WA air circuit breaker provides a wide range of
information:
•
Tripping cause
•
Status of the ETU
•
Status of the mechanical system
•
Status of position of withdrawable circuit breaker in the guide frame
•
Information about the DAS+ maintenance mode
•
Active warnings
•
Active alarms
•
ETU error messages (self-monitoring and diagnostics function of ETU600)
•
Status of the main contacts of the circuit breaker
The information can be called up via registry entries.
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