98 S&C Instruction Sheet 461-504
Fuse Link
Ampere Rating
K-Speed T-Speed QA/QR
KS
NE
(N-Speed
McGraw-
Edison)
NK
(N-Speed
Kearney)
ST
①
CO
①
6K
6T
3QR
10KS
5NE
5NK
5ST
101CO
8K
8T
5QR
15KS
8NE
7NK
7ST
102CO
10K
10T
7QR
20KS
10NE
10NK
10ST
103CO
12K
12T
8QR
25KS
15NE
15NK
15ST
15K
15T
10QR
30KS
20NE
20NK
20ST
20K
20T
15QR
40KS
25NE
25NK
25ST
25K
25T
20QR
50KS
30NE
30NK
30ST
30K
30T
25QR
65KS
40NE
40NK
40ST
40K
40T
30QR
80KS
50NE
50NK
50ST
50K
50T
40QR
100KS
60NE
65NK
65ST
65K
65T
50QR
125KS
75NE
80NK
80ST
80K
80T
60QR
150KS
85NE
100NK
100ST
100K
100T
75QR
200KS
100NE
125NK
125ST
140K
140T
100QR
125NE
150NK
150ST
200K
200T
125QR
150NE
175NK
200ST
150QR
200NE
200NK
175QR
200QR
Type H
Inverse Segment
Definition
Coil Rating
H-A
●
Type H, A curve
5A, 10A, 15A, 25A,
35A, 50A
H-B
Type H, B curve
5A, 10A, 15A, 25A,
35A, 50A
H-C
Type H, C curve
5A, 10A, 15A, 25A,
35A, 50A
Hydraulic Recloser
Type 4H, V4H
Inverse Segment
Definition
Coil Rating
(V)4H-A
●
Type 4H or Type
V4H, A curve
5A, 10A, 15A, 25A,
35A, 50A, 70A,
100A, 140A, 200A
(V)4H-B
Type 4H or Type
V4H, B curve
5A, 10A, 15A, 25A,
35A, 50A, 70A,
100A, 140A, 200A
(V)4H-C
Type 4H or Type
V4H, C curve
5A, 10A, 15A, 25A,
35A, 50A, 70A,
100A, 140A, 200A
Type L
Inverse Segment
Definition
Coil Rating
L-A
●
Type L, A curve
25A, 35A, 50A, 70A,
100A, 140A, 200A
L-B
Type L, B curve
25A, 35A, 50A, 70A,
100A, 140A, 200A
L-C
Type L, C curve
25A, 35A, 50A, 70A,
100A, 140A, 200A
L-D
Type L, D curve
25A, 35A, 50A, 70A,
100A, 140A, 200A
Type V4L, V4E
Inverse
Segment
Definition
Coil Rating
V4L(E)-A
●
Type V4L or Type
V4E, A curve
15A, 25A, 35A, 50A,
70A, 100A, 140A,
200A
V4L(E)-B
Type V4L or Type
V4E, B curve
15A, 25A, 35A, 50A,
70A, 100A, 140A,
200A
V4L(E)-C
Type V4L or Type
V4E, C curve
15A, 25A, 35A, 50A,
70A, 100A, 140A,
200A
V4L(E)-D
Type V4L or Type
V4E, D curve
15A, 25A, 35A, 50A,
70A, 100A, 140A,
200A
Type E
Inverse
Segment
Definition
Coil Rating
E-A
●
Type E, A curve
5A, 10A, 15A, 25A,
35A, 50A, 70A, 100A
E-B
Type E, B curve
5A, 10A, 15A, 25A,
35A, 50A, 70A, 100A
E-C
Type E, C curve
5A, 10A, 15A, 25A,
35A, 50A, 70A, 100A
E-D
Type E, D curve
5A, 10A, 15A, 25A,
35A, 50A, 70A, 100A
Type 4E
Inverse
Segment
Definition
Coil Rating
4E-A
●
Type 4E, A curve
50A, 70A, 100A,
140A, 200A
4E-B
Type 4E, B curve
50A, 70A, 100A,
140A, 200A
4E-C
Type 4E, C
curve
50A, 70A, 100A,
140A, 200A
4E-D
Type 4E, D
curve
50A, 70A, 100A,
140A, 200A
Type DV
Inverse
Segment
Definition
Coil Rating
DV-A
●
Type DV, A curve
100 A, 140 A
DV-B
Type DV, B curve
100 A, 140 A
DV-C
Type DV, C curve
100 A, 140 A
DV-D
Type DV, D curve
100 A, 140 A
DV-E
Type DV, E curve
100 A, 140 A
Appendix A
①
ST curves are S&C Standard Fuse emulation curves.
CO curves are S&C Coordinating Fuse emulation curves.
●
Curves are available that emulate both the Maximum
Clearing Time and the Average Clearing Time.