400Hz Delay Curves (typ)
10000
A choice of delays is offered for 400Hz applications.
Delays 40 and 49 are fast acting, non-delayed
tripping to protect sensitive electronic equipment
(not recommended where known inrush exists).
Delay 41 has a short delay for general purpose
applications. Delay 42 is long enough to start certain
types of motor and most transformers and capacitor
loads. Delay 43 is an extra long delay primarily for
special motor applications.
1000
100
10
1
.1
.01
.001
DELAY 42
0
100 150 200
300
400
500
600
700
800
900
1000
125
PERCENT OF RATED CURRENT
10000
10000
1000
100
10
1
.1
.01
DELAY 40
1000
100
10
1
.1
.01
DELAY 43
.001
0
100 150 200
125
300
400
500
600
700
800
900
1000
.001
0
100 150 200
125
300
400 500 600 700
PERCENT OF RATED CURRENT
800
900
1000
PERCENT OF RATED CURRENT
10000
10000
1000
DELAY 41
1000
DELAY 49
100
100
10
10
1
1
.1
.1
.01
.01
.001
.001
0
100 150 200
300
400
500
600
700
800
900
1000
0
100 150 200
130
300
400
500
600
700
800
900
1000
125
PERCENT OF RATED CURRENT
PERCENT OF RATED CURRENT
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