Masterpact ® circuit breaker
time current curves
overcurrent protection STR 280
1 000
900
BOO
7000
6000
500
400
0
0
0
0
0
300 0
5 6 7 8 9 1 1 2 1 5 2
4 5 6 7 8 9 10
current setting
0
20
30 40 50
eo \2 /6 °0
2000
lr
=
0.8 .
.
. 1 x plug rating
0
0
0
0
100
90
80
70
60
50
0
0
40 0
300
20 0
0
0
0
100
9
8
7
0
0
0
0
0
0
9
8
7
6
5
4
3
2
1
9
8
6
5
4
.3
2
1
09
.08
07
06
05
04
. 03
.02
.01
5 .6 .7 .8 9 1 1.2 1.5 2
instantaneous pickup
1 - 1 .5 .
.
. 1 0 x lr
'
4 5 6 7 8 9 10
20
30 40 50 60 ;2 a5 :§:;
§
0
N
g 8 § 8 8 888
CD r- co OJ �
N
§ § § § § §§§
I.D <D r- co m �
'
'
0
0
§
multiple of current setting {lr)
9000
8000
7000
6000
5000
4000
3000
2000
1
9
8
7
000
00
00
00
00
00
6
5
4 00
3 00
2 00
1
9
00
0
0
0
0
8
7
6
5
4
3
2
9
8
6
5
4
3
2
1
.9
8
.7
.6
5
.4
.3
.2
1
0
0
0
0
7
06
5
0
.0
0
.0
MP1010A.O
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