Functions
5.1 Current protection
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01
47
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]
SG
MG
SH
MH
TH
NH
ETU22
ETU22
ETU22
ETU22
ETU22
ETU22
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
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
SS
MS
ETU30M
3)
ETU30M
3)
0,4 ... 1
0,4 ... 1
-
-
-
-
6/8/11
6/8/11
-
-
-
-
CP
CH
CJ
LCD-ETU40M
3)
LCD-ETU40
LCD-ETU40
0,4 ... 1
0,4 ... 1
0,4 ... 1
-
1,5 ... 10
1,5 ... 10
-
0 ... 0,5
0 ... 0,5
1,25 ... 11
1,25 ... 11
1,25 ... 11
-
-
-
-
-
-
CL
CM
CN
LCD-ETU42
LCD-ETU42
LCD-ETU42
0,4 ... 1
0,4 ... 1
0,4 ... 1
1,5 ... 10
1,5 ... 10
1,5 ... 10
0 ... 0,5
0 ... 0,5
0 ... 0,5
1,25 ... 11
1,25 ... 11
1,25 ... 11
0,4 ... 1
0,4 ... 1
0,4 ... 1
0,1 ... 0,5
0,1 ... 0,5
0,1 ... 0,5
1)
Dependent on frame size, refer to chapter "Dimensioning short-circuit protection according
to frame size (Page 47)"
2)
TM to I
n
= 630 A
3)
Motor protection to I
n
= 500 A
5.1.4
Dimensioning short-circuit protection according to frame size
Short-circuit protection (instantaneous) I
i
= x I
n
)
63 A
100 A
160 A
200 A
250 A
315 A
400 A
630 A
800 A
1000 A 1250 A 1600 A
11
11
11
11
11
11
11
10
8
11
11
9
Short-circuit protection (instantaneous) I
SD
= x I
r
)
63 A
100 A
160 A
200 A
250 A
315 A
400 A
630 A
800 A
1000 A 1250 A 1600 A
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 1
0
1,5 ... 9 1,5 ... 7 1,5 ... 1
0
1,5 ... 1
0
1,5 ... 8
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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