Description
2.8 Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
80 Manual, 10/2018, L1V30499596002-01
Pre-alarms PAL response thresholds - function trigger
Enabling/disabling of PAL response threshold
overload current I
r pal(1)
● ●
Enabling/disabling of PAL response threshold
r pal(2)
● ●
Setting range for PAL response threshold over-
load current I
r pal(1)
= I
r
x …
50%, 100% (in steps of 1%)
50%, 100% (in steps of 1%)
Setting range for PAL response threshold over-
load current I
r pal(2)
= I
r
x …
50%, 100% (in steps of 1%)
50%, 100% (in steps of 1%)
Enabling/disabling of PAL response threshold
● ●
Enabling/disabling of PAL response threshold
n pal(2)
● ●
Setting range for PAL response threshold
rated current I
n pal(1)
= I
n
x …
0.1 to 10 (in steps of 0.01)
0.1 to 10 (in steps of 0.01)
Setting range for PAL response threshold
overload current I
n pal(2)
= I
n
x …
0.1 to 10 (in steps of 0.01)
0.1 to 10 (in steps of 0.01)
Crossing the response threshold rated current I
n
pal(1)
Direction: from bottom, or from top
Default value: bottom → top Default value: bottom → top
Crossing the response threshold rated current I
n
pal(2)
Direction: from bottom, or from top
Default value: bottom → top Default value: bottom → top
Checking the phase sequence / alarm
1)
Checking the phase sequence can be enab-
● ●
Setting range for phase sequence L1L2L3; L3L2L1
L1L2L3; L3L2L1
1)
Trip COS PHI can be enabled/disabled
Setting range for checking the COS PHI 0.50 to 0.95 (in steps of
0.01)
0.50 to 0.95 (in steps of
0.01)
Frequency adaptation with the ETU of the 3-
series with a DIP switch, with the ETU of the 6-
50Hz; 60Hz
Default value: 50Hz
50Hz; 60Hz
Default value: 50Hz
Nominal voltage adaptation
Nominal voltage 100 V AC to 690 V AC
100 V AC to 690 V AC
1)
Only available with MF Basic or MF Advanced metering function