33
Protection unit
Ground fault protection
(only for item 0 281 66
and 0 281 68)
Setting of current (9 steps)
Ig=0.2-0.3-0.4-0.5-0.6-0.7-0.8-1
×In-OFF
Setting of time delay (@12×Ig)
(4+4 steps)
tg=0.1-0.2-0.5-1s(t=const)
tg=1-0.5-0.2-0.1s(I t=const)
Setting of time delay (@6Ir)
(4+4 steps)
tr=5-10-20-30s (MEM ON)
tr=30-20-10-5s (MEM OFF)
MEM OFF = thermal memory off
MEM ON = thermal memory on
Long time protection
Setting of current (2x6 steps)
Ir=0,4÷1×In
With 2 switches
(0,4÷0,9, steps of 0,1
0,0÷0,1, steps of 0,02)
Example:
Ir =(0.4+0.06)×In= 0.46 In
Short circuit protection
Setting of current (9 steps)
Isd=1.5-2-2.5-3-4-5-6-8-10xIr
If Ii<Isd, then instantaneous setting
prevails against the magnetic one.
*“Fixed instantaneous short
time protection=Isf=Icw@415V”
@6I
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
@6I
0 281 66
0.3
0.2
0.4
0.5 0.6 0.7
0.8
1
0.1
0.2
0.5
1
0.1
0.2
0.5
1
lg
tg
test
2
3
4
6 8 10
12
15
lcw
li
x
ln
1.5
2.5
2
3 4 5
6
8
10
x
lr
lsd
OFF
0.1
0.2
0.5
1 1 0.5
0.2
0.1
s
tsd l
2
t=k@12lr
lr
0.4
0.5
0.6
0.7 0.8 0.9
+ 0.00
0.02
0.04
0.060.080.1
5
10
20
30 30 20
10
5
MEM-OFF
s
r
tr
N
100%
50%
OFF
x
ln
MAN AUT
ON
x
lr
l>.90
l>1.05
OK
C
Summary of Contents for 0 281 64
Page 1: ...Unité de Protection Juin 17 LE08438AB Réf 0 281 64 65 66 67 68 ...
Page 2: ......
Page 27: ...Protection unit June 17 LE08438AB References 0 281 64 65 66 67 68 ...
Page 28: ......
Page 53: ...53 Protection unit ...
Page 54: ...54 Protection unit ...
Page 55: ...55 Protection unit ...
Page 56: ...LE08438AB ...