Masterpact™ MP ci rcuit breaker
time current curves
load monitoring ST 308SR - ST 31 8SR - ST 408SR - ST 41 8SR
woo · '
2
4
5 . 6 . 7 .8 9 1 1 .2 1 5 2
3
4
5
6 7 8 9 1 0
1
5
1
2
3
.4
. 5 .6
.
7
.8 . 9 1
900
output
1c2
output
lc1
800
700
600
500
400
current setting:
1 .2 1 . 5
2
3
4
5
6 7 8 9 1 0
1
5
current setting:
-
300
lr
�
0.8 . . . 1
x
sensor rating (In)
lr
�
0.8
.
. .
1 x
sensor rating (In) -
200
100
90
80
70
60
50
40
30
?0
1 0
9
8
7
6
5
4
3
-
load limit:
l
c
2 �
0.8 ..
1
x
cu rrent
sett1ng (lr)
'
I
I
--
--
-
-
-
time delayed
--
-
-
-
load
decreases
-- below lc2
-
-
1
9
7
6
5
4
I
3
2
-
;
·
-+
I
1
09
08
07
06
05
04
03
-l--
02
1
2
3
5
6 7 .8 .9 1
·-
'
-
-
-
2
I
time delayed
when load
exceeds lc2
i
1 2
1
5
2
3
4
.__
___
- --
---
multiple of current setting
(
lr
)
MERLIN GERIN
10
-
-
- -
-
5
6 7 8 9 1 0
1 5
load limit:
lc1
�
0.8
. . .
1 x
current
setting (
l
r)
---�
I
I
time delayed
when load
decreases
--
below lc1
I
-
-
-
-
. 1
2
3
4
-
2
time delayed
when load
exceeds lc1
5 .6 . 7 .8 9 1 1 .2 1 . 5
2
3
4
multiple of current setting (lr
)
10
-
--
5 6 7 8 9 1 0
1 ?
27
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