Description
2.8 Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
48
Manual, 10/2018, L1V30499596002-01
Two individual series of electronic trip units
ETU, 3-series
•
LI, LSI, LSIG protection function
•
Adjustable neutral protection
•
Rotary coding switch in 3VA design
•
Tripping characteristics with selective design
for the 3WL and 3VA family
•
Operation in the temperature range from
-25 °C to +70 °C
ETU, 6-series
•
LI, LSI, LSIG protection function
•
Adjustable neutral protection
•
Display and modularly expandable functio-
nality
•
Fine adjustment for increased selectivity
requirements
•
Communication-capable
•
Metering function (Basic & Advanced)
•
Enhanced protection functions for tailored
applications & specific network requirements
•
Residual current protection
•
Ground fault protection in the star point
•
Interactive I/O functionalities
•
Operation in the temperature range from
-25 °C to +70 °C