Technical data

41
©1995 Square D—All Rights Reserved
11/98
Load Monitoring STR 58U Control Unit
06313082
Multiple of Current Setting (Ir)
.01
.1
.02
.03
.04
.05
.06
.07
.08
.09
1
.2
.3
.4
.5
.6
.7
.8
.9
10
2
3
4
5
6
7
8
9
30
40
20
50
60
70
80
90
100
200
300
400
500
600
700
800
900
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
.1
.02
.03
.04
.05
.06
.07
.08
.09
1
.2
.3
.4
.5
.6
.7
.8
.9
10
2
3
4
5
6
7
8
9
30
40
20
50
60
70
80
90
100
200
300
400
500
600
700
800
900
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
1 1.2 1.5 2 3 4.5 .6 .7
.8
.9 5 106 7 8 9 20 30 40 50 60
70 80 90 100 200 300 400 500 600 700 800 900 1000
.4.3.2
.05 .06 .07 .08 .09
.1
Current Setting
Ir = 0.8–1 x Plug Rating
Ic2 = 0.5 1 x Ir
tr
1
= tr / 2
tr
2
= tr / 4
Ic1 = 0.8 1 x Ir
.12 .15
1 1.2 1.5 2 3 4.5 .6 .7 .8 .9 5 106 7 8 9 20 30 40 50 60
70 80 90
100 200 300 400 500 600 700 800 900
1000
.4.3.2
.05 .06 .07 .08 .09
.1
.12 .15
.01
Time in Seconds
Trip Curves