Functions
5.1 Current protection
3VL molded-case circuit breakers
46
System Manual, 03/2009, 110 0110 - 02 DS 01
5.1.3
Setting options
In view of the large number of setting options of the individual overcurrent trip units, an
overview in table form is useful for calculating the optimal operating point.
Table 5- 2
Overcurrent tripping method - setting options
Setting options
L
Overload
protection
S
1)
Short-circuit protection
(short time delay)
I
1)
Short-circuit
protection
(instantaneous)
G
Ground fault protection
Order No.
supplement
Trip unit
I
r
= x I
n
I
sd
= x I
r
t
sd
[s]
I
i
= x I
n
I
g
= I
n
t
g
[s]
DK
M
-
-
-
7 ... 15
-
-
DC
EJ
EC
EM
TM
2)
TM
2)
TM
2)
TM
2)
0,8 ... 1
0,8 ... 1
0,8 ... 1
0,8 ... 1
-
-
-
-
-
-
-
-
5 ... 10
5 ... 10
5 ... 10
5 ... 10
-
-
-
-
-
-
-
-
SP
MP
SB
MB
TA
NA
TB
NB
ETU10M
3)
ETU10M
3)
ETU10
ETU10
ETU10
ETU10
ETU10
ETU10
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SL
ML
SF
MF
TN
NN
ETU12
ETU12
ETU12
ETU12
ETU12
ETU12
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
-
-
-
-
-
-
-
-
-
-
-
-
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
1,25 ... 11
0.6 ... 1 OFF
0.6 ... 1 OFF
0.6 ... 1 OFF
0.6 ... 1 OFF
0.6 ... 1 OFF
0.6 ... 1 OFF
0.1/0.3/Off
0.1/0.3/Off
0.1/0.3/Off
0.1/0.3/Off
0.1/0.3/Off
0.1/0.3/Off
SE
ME
TE
NE
TF
NF
ETU20
ETU20
ETU20
ETU20
ETU20
ETU20
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,4 ... 1
1,5 ... 10
1,5 ... 10
1,5 ... 10
1,5 ... 10
1,5 ... 10
1,5 ... 10
0 ... 0,5
0 ... 0,5
0 ... 0,5
0 ... 0,5
0 ... 0,5
0 ... 0,5
11
11
11
11
11
11
-
-
-
-
-
-
-
-
-
-
-
-
Summary of Contents for SENTRON 3VL series
Page 2: ......
Page 10: ...Table of contents 3VL molded case circuit breakers 10 System Manual 03 2009 110 0110 02 DS 01 ...
Page 350: ...Correction sheet 3VL molded case circuit breakers 350 System Manual 03 2009 110 0110 02 DS 01 ...
Page 358: ...Glossary 3VL molded case circuit breakers 358 System Manual 03 2009 110 0110 02 DS 01 ...
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