Description
2.8 Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
47
Electronic
ETUs of the 3-series
Electronic with display
ETUs of the 6-series
Trip units
ETU320, ETU350, ETU360
Line / generator protection
ETU650, ETU660
Line / generator / motor protection
Parameter assignment Setting parameters with rotary coding
switch
• Setting the parameters with push-
buttons and reading them off the
display and communication
• Fine adjustment of the parameters
• Reading off the measured values
Enhanced protection function —
• 2nd parameter set (set A/B)
• Making current release (MCR)
• DAS - Arc-fault-mitigation
• Ground fault protection in the star
point
• Phase unbalance
• Further functions in conjunction with
metering function Advanced, which
include the voltage, the directions of
power flow in the protection archi-
tecture or can detect residual cur-
rents more precisely
Communication — Optional
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