Description
2.8 Electronic trip unit
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
95
Activation limits for ETUs without an external supply
ETUs of the 3-series
3-series electronic trip units are equipped with rotary selector switches. A description of the
operating principle of the rotary selector switches and operating instructions can be found in
chapter Guide to setting the tripping characteristic (Page 73).
Displays on 5-series and 8-series electronic trip units
5-series and 8-series electronic trip units are equipped with an LCD. The displayed values
are refreshed once per second.
Note
The backlighting of the LCD is only active with an external voltage supply (e.g. COM060,
EFB300, 24 V module).
