DC/50/60Hz Delay Curves (typ)
(Multi-frequency)
A choice of delays is offered for combined DC and 50/60Hz
operation. Delay 70 is fast acting, non-delayed tripping to
protect sensitive electronic equipment (not recommended
where known inrush exists). Delay 71 has a short delay for
general purpose applications. Delay 72 is long enough to start
certain types of motors and most transformer and capacitor
loads. Delay 73 is an extra long delay primarily for special
motor applications.
10000
10000
1000
100
10
1
.1
.01
.001
DELAY 70
1000
100
10
1
.1
.01
.001
DELAY 72
0
100 150 200
125
300
400
500
600
700
800
900
1000
0
100 150 200
125
300
400
500
600
700
800
900
1000
10000
PERCENT OF RATED CURRENT
10000
PERCENT OF RATED CURRENT
1000
100
10
1
.1
.01
.001
DELAY 71
1000
100
10
1
.1
.01
.001
DELAY 73
0
100 150 200
125
300
400
500
600
700
800
900
1000
0
100 150 200
125
300
400
500
600
700
800
900
1000
PERCENT OF RATED CURRENT
PERCENT OF RATED CURRENT
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