Siemens SENTRON 3WL10 - Page 65

Protection ETU320
LI
ETU350
LSI
ETU360
LSIG
ETU650
LSI
ETU660
LSIG
Ground-fault protection with current measure‐
ment at the star point (G
RET
)
— — — ● ●
MCR protection function - making current release
during closure
— — — ● ●
Monitoring of direction of power 󹪞ow and power
factor determination (with metering function
MF)
— — — ● ●
2nd parameter set — — — ● ●
Equipment ETU320
LI
ETU350
LSI
ETU360
LSIG
ETU650
LSI
ETU660
LSIG
Display (LCD) — — — ● ●
Setting with rotary coding switch ● ● ● — —
Setting via control buttons next to the ETU display — — — ● ●
Data display via control buttons next to the
ETUdisplay
— — — ● ●
Metering function as option MF Basic — — — ● ●
Metering function as option MF Advanced — — — ● ●
Internal I/O module IOM040 with 2 inputs and
2outputs as an option
— — — ● ●
External I/O module IOM300 with 10I and 11O as
an option
— — — ● ●
Front interface for parameterization, testing, and
data read-out
● ● ● ● ●
Communication ETU320
LI
ETU350
LSI
ETU360
LSIG
ETU650
LSI
ETU660
LSIG
Communication Modbus RTU, Modbus TCP, PRO‐
FIBUS, or PROFINET as an option
— — — ● ●
Write protection for communication — — — ● ●
Deactivation of communication for access from
external
— — — ● ●
Self-monitoring / diagnostics ETU320
LI
ETU350
LSI
ETU360
LSIG
ETU650
LSI
ETU660
LSIG
Watchdog monitored (hardware, 󹪝rmware) (trip‐
ping or only alarm)
● ● ● ● ●
Continuous CT and tripping coil monitoring (trip‐
ping or only alarm)
● ● ● ● ●
Protection by temperature monitoring (can be
deactivated)
● ● ● ● ●
Thermal memory (LT adaptation) can be deacti‐
vated
— — — ● ●
Description
2.9Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
64 Equipment Manual, 10/2023, L1V30499596002-03