Table of Contents
Advertisement
Description
2.7 Possible uses and portfolio
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
S
• 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
INST
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
S
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.
28
Protection function can be enabled/disa‐
bled
Switchover to alternative operating values
with instantaneous short-circuit current
during the switch-on phase (inrush adap‐
tation, startup function)
Setting range for duration t during the
switch-on phase
Setting range I
= I
x ... during the switch-
i
n
on phase
Protection function can be enabled/disa‐
bled
ETU650 LSI
ETU650 LSI
Default value: OFF
Switch over to ON
0.10 to 30 s (in steps of 0.01)
Default value: 0.1
1.5 to 15 (in steps of 0.1)
Default value: 1.5
ETU650 LSI
Default value: OFF
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03
ETU660 LSIG
●
ETU660 LSIG
●
ETU660 LSIG
●
Advertisement
Table of Contents
