LEGRAND 0 281 64 Mode D'emploi page 34

Protection unit
Setting of time delay
(4+4 steps)
tsd=0.1-0.2-0.5-1s (t=const)
tsd=1-0.5-0.2-0.1s (i t=const)
Instantaneous short circuit
protection
Setting of current (9 steps)
Ii=2-3-4-6-8-10-12-15x In or Icw
At setting "Icw", Ii protection gets
disabled increasing the selectivity.
Neutral protection
Setting of current (3 steps)
N=OFF-50%-100%
Protection against over temperature
(not adjustable) t >95°C
*"Fixed instantaneous short
time protection=Isf=Icw@ 415V"
34
OK C
lg tg
test
OK C
0.5 0.6 0.7 1 1
0.5
0.8 0.5
0.4
OK 0.2 C
0.3 1 0.2 0.1
0.2
0.1
OFF
lg tg
test
1
0.5 0.6 0.7 1
0.5
lg tg
0.5 test
0.4 0.8 tsd l
0.2 2
lsd
li t=k@12lr
1
0.5 0.6 0.7 1
0.5
6 8 10
0.3 1 0.2 3 4 5 0.1 1 1 0.5
MAN AUT 0.5
0.8
0.4 0.2
0.2 0.1 2.5 6 0.5
4 12 0.2
OFF
0.3 1 0.2 0.1
15 2 8 0.1
3 0.2
0.2 0.1
OFF
10
2 lcw
1.5
0.1
tsd l
2
x ln lsd lr t=k@12lr
li x s
6 8 10 3 4 5 1 1 0.5
MAN AUT
tsd l
2
lsd t=k@12lr
li 2.5
4 12 6 0.5
0.2
tr MEM-OFF
lr
6 8 10 1 1 0.5
3 4 5
MAN AUT 0.06 0.08 0.1 8
3 0.7 0.8 0.9 15 2 0.2 30 30 20 0.1
12 2.5 6 0 281 66 0.5
4 0.2
lcw 10 20
0.6 2 0.04 1.5 10
0.1
15 2 8 0.2 0.1
3
0.5 0.02 10 5
x ln lcw x 10 lr s
2
1.5
0.1
0.4 + 5
0.00
x ln x lr
s
@6I r
s
lr x ln tr MEM-OFF
0.06 0.08 0.1
0.7 0.8 0.9 30 30 20
0 281 66
tr MEM-OFF
lr 0.04 20
0.6 10
N
0.06 0.08 0.1
0.7 0.8 0.9 30 30 20
0.02 10
0.5 0 281 66 5
100%
0.04 20
0.6 10
ON lr
x
0.4 + 5
0.00
0.5 0.02 10 5
50%
@6I r
s
x ln
0.4 + 5
0.00
l>.90
OFF
@6I r
s
l>1.05 x ln
N
100%
N
ON x lr
100%
50%
ON lr
x
l>.90
OFF
50%
l>1.05
l>.90
OFF
l>1.05
OK C
MAN AUT
lg tg
test
OK C
0.5 0.6 0.7 1
1
0.5
0.5
0.4 0.8
OK 0.2 C
1 0.2 0.1
0.3
MAN AUT
0.2
0.1
OFF
MAN AUT
lg tg
test
0 281 66
0.5 0.6 0.7 1 1
0.5
lg tg
test
0.8 0.5 tsd l
0.4
0.2 2
li lsd t=k@12lr
0.5 0.6 0.7 1
1
0.5
0.3 6 8 10 1 0.2 3 4 5 0.1 1 1 0.5
0.5
0.4 0.8
0.2
0.2 2.5 6
4 12 0.1 0.5 0.2
OFF
1 0.2 0.1
0.3
8
3 15 2 0.2 0.1
0.2
0.1
0 281 66
OFF
lcw 10
2 1.5
0.1
tsd l
0 281 66 2
lsd
li x ln x lr t=k@12lr s
6 8 10
3 4 5 1 1 0.5
tsd l
2
li lsd t=k@12lr
12 2.5 6 0.5
4 0.2
tr
lr MEM-OFF
6 8 10 3 4 5 1 1 0.5
0.06 0.08 0.1
15 2 8 30 30 20 0.1
3 0.7 0.8 0.9 0.2
2.5 6 0.5
4 12 0.2
10
2 lcw 0.04 20
0.6 1.5 10
0.1
15 2 8
3 0.2 0.1
0.02 10 5
0.5
x ln lr
2 lcw x 10 s
1.5
0.1
+ 5
0.4
0.00
x ln x lr s
@6I r
tr MEM-OFF s
lr x ln
0.06 0.08 0.1
0.7 0.8 0.9 30 30 20
tr
lr 20 MEM-OFF
0.6 0.04 10
N
0.06 0.08 0.1
0.7 0.8 0.9 30 30 20
0.5 0.02 10 5
100%
0.6 0.04 20
10
lr
ON x
0.4 + 5
0.00
0.5 0.02 10 5
50%
@6I r
s
x ln
+ 5
0.4 0.00
l>.90
OFF
@6I r s
l>1.05 x
ln
N
100%
N
ON lr
x
50% 100%
lr
ON x
l>.90
OFF
50%
l>1.05
l>.90
OFF
l>1.05
OK C
lg tg
test
OK C
0.5 0.6 0.7 1
1
0.5
0.5
0.4 0.8
OK 0.2 C
1 0.2 0.1
0.3
0.2
0.1
OFF
lg tg
test
0.5 0.6 0.7 1 1
0.5
lg tg
test
0.8 0.5 tsd l
0.4
0.2 2
li lsd t=k@12lr
0.5 0.6 0.7 1
1
0.5
0.3 6 8 10 1 0.2 3 4 5 0.1 1 1 0.5
0.5
0.4 0.8
0.2
0.2 2.5 6
4 12 0.1 0.5 0.2
OFF
1 0.2 0.1
0.3
8
3 15 2 0.2 0.1
0.2
0.1
OFF
lcw 10
2 1.5
0.1
tsd l
2
lsd
li x ln x lr t=k@12lr s
6 8 10
3 4 5 1 1 0.5
tsd l
2
li lsd t=k@12lr
2.5 6 0.5
4 12 0.2
tr
lr MEM-OFF
6 8 10 3 4 5 1 1 0.5
0.06 0.08 0.1
15 2 8 30 30 20 0.1
3 0.7 0.8 0.9 0.2
2.5 6
4 12 0.5 0.2
10
2 lcw 0.04 20
0.6 1.5 10
0.1
15 2 8
3 0.2 0.1
0.02 10 5
0.5
x ln lr
lcw x 10 s
2 1.5
0.1
0.4 + 5
0.00
x ln x lr s
@6I r
tr MEM-OFF s
lr x ln
0.06 0.08 0.1
0.7 0.8 0.9 30 30 20
tr
lr 20 MEM-OFF
0.6 0.04 10
N
0.06 0.08 0.1
30 30 20
0.7 0.8 0.9
0.5 0.02 10 5
100%
0.6 0.04 20
10
ON x lr
0.4 + 5
0.00
0.5 0.02 10 5
50%
@6I r
s
x ln
+ 5
0.4 0.00
l>.90
OFF
@6I r s
l>1.05 x
ln
N
100%
N
ON lr
x
50% 100%
lr
ON x
l>.90
OFF
50%
l>1.05
l>.90
OFF
l>1.05
NEUTRAL PROTECTION
Position Protection
OFF No protected
50% Protected at 50% Ir-Isd-Ii
100% Protected at Ir-Isd-Ii