Specifications

Time Current Characteristic Curve
Ground Fault Protection
28
400A, 800A, 1200A, and 1600A
.5
.1
.2
.3
.4
.5
.1
.2
.3
.4
I
2
t
Fixed
MAX RATING
= 400A
100
20
25
30
40
50
60
70
80
90
Ground
Fault
Delay
Ground
Fault
Pickup
lg=
% MAX
Secs
Rating
@.5
MAX Rating
.5
.1
.2
.3
.4
.5
.1
.2
.3
.4
I
2
t
Fixed
MAX RATING
= 800A
100
20
25
30
40
50
60
70
80
90
Ground
Fault
Delay
Ground
Fault
Pickup
lg=
% MAX
Secs
Rating
@.5
MAX Rating
Ground
Fault
Delay
.5
.1
.2
.3
.4
.5
.1
.2
.3
.4
I
2
t
Fixed
MAX RATING
= 1200A
100
Ground
Fault
Pickup
20
25
30
40
50
60
70
80
90
lg=
% MAX
Secs
Rating
@.5
MAX Rating
.5
.1
.2
.3
.4
.5
.1
.2
.3
.4
I
2
t
Fixed
MAX RATING
= 1600A
75
20
26
32
38
44
50
56
62
68
Ground
Fault
Delay
Ground
Fault
Pickup
lg=
% MAX
Secs
Rating
@.5
MAX Rating
I
g
=% (MAX Rating)
I
g
=% (MAX Rating)
I
g
=% (MAX Rating)I
g
=% (MAX Rating)