Siemens SENTRON 3WL10 - Page 29

It is therefore suitable for combining with 3RWsoft starters or frequency converters because
they strongly limit the high inrush currents.
MSP for starter combinations with ETUs of the 6-series
• With use of the rating plug "L OFF".
The overload protection is deactivated:
• Deactivation of the instantaneous short-circuit protection "S"
Short-time-delayed short-circuit protection ETU650 LSI ETU660 LSIG
S Protection function can be enabled/disa‐
bled
●
• Selection and parameterization of the setting options (current and time) for instantaneous
short-circuit protection for the switch-on phase (inrush adaptation) according to the
application.
Instantaneous short-circuit protection INST ETU650 LSI ETU660 LSIG
INST Switchover to alternative operating values
with instantaneous short-circuit current
during the switch-on phase (inrush adap‐
tation, startup function)
●
Default value: OFF
Switch over to ON
Setting range for duration t during the
switch-on phase
0.10 to 30s (in steps of 0.01)
Default value: 0.1
Setting range I
i
= I
n
x … during the switch-
on phase
1.5 to 15 (in steps of 0.1)
Default value: 1.5
Suitable for all motor starter combinations
The3VA27 molded case circuit breaker or 3WL10 air circuit breaker as a motor starter protector
The ETUs of the 6-series can also be used for motor protection applications. For this purpose,
these ETUs provide the following setting parameters for protecting motors:
• Deactivation of the instantaneous short-circuit protection "S"
Short-time-delayed short-circuit protection ETU650 LSI ETU660 LSIG
S Protection function can be enabled/disa‐
bled
●
Default value: OFF
The short-time-delayed short-circuit protection is not required for motor protection
applications because no discrimination is required for coordination with downstream circuit
breakers.
• Selection and parameterization of the setting options (current and time) for instantaneous
short-circuit protection for the switch-on phase (inrush adaptation) according to the
application.
Description
2.7Possible uses and portfolio
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
28 Equipment Manual, 10/2023, L1V30499596002-03