www.littelfuse.com © 2016 Littelfuse POWR-GARD
®
Products
Rev: 1-B-042116
POWR-GARD
®
Fuse Datasheet
3 of 3
100,000
90,000
80,000
70,000
60,000
50,000
40,000
30,000
20,000
10,000
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
100,000
90,000
80,000
70,000
60,000
50,000
40,000
30,000
20,000
10,000
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
200,000
100,000
90,000
80,000
70,000
60,000
50,000
40,000
30,000
20,000
10,000
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
PEAK LET- THRU IN AMPERES
600A -
400A -
200A -
100A -
60A -
30A -
1,000
900
800
700
600
500
400
300
200
100
1,000
900
800
700
600
500
400
300
200
100
200,000
100,000
90,000
80,000
70,000
60,000
50,000
40,000
30,000
20,000
10,000
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
AVAILABLE FAULT CURRENT
SYMMETRICAL R.M.S. AMPERES
BASIS FOR DATA:
TEST VOLTAGE:
TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER:
DRAWN BY:
DATE:
REVISION:
DRAWING NO.: SHEET
PEAKLET‐THRUCHARACTERISTICCURVES
LITTELFUSE,INC.
CHICAGO,IL.USA
LLL
03/15/2016
A
2 OF 2
FCC05-JTD
JTD & JTDID 30A - 600A
- DATA GENERATED IN EXCEL -
Current-Limiting Effects of JTD & JTDID (600 V) Fuses
SHORT CIRCUIT
CURRENT
†
APPARENT RMS SYM MET RI CAL CURRENT FOR VARIOUS FUSE RATINGS
30 A 60 A 100 A 200 A 400 A 600 A
5,000 699 1,331 1,903 2,858 4,702 -
10,000 881 1,676 2,397 3,601 5,925 7,689
15,000 1,008 1,919 2,744 4,123 6,782 8,802
20,000 1,110 2,112 3,020 4,537 7,464 9,687
25,000 1,196 2,275 3,254 4,888 8,041 10,436
30,000 1,271 2,418 3,457 5,194 8,545 11,089
35,000 1,338 2,545 3,640 5,468 8,995 11,674
40,000 1,398 2,661 3,805 5,717 9,405 12,205
50,000 1,506 2,867 4,099 6,158 10,131 13,148
60,000 1,601 3,046 4,356 6,544 10,766 13,972
80,000 1,762 3,353 4,795 7,20 3 11,849 15,378
100,000 1,898 3,612 5,165 7,75 9 12,764 16,565
150,000 2,173 4,134 5,912 8,882 14,611 18,963
200,000 2,391 4,551 6,507 9,776 16,082 20,871
†Prospective RMS Symmetrical Amperes Short-Circuit Current
Note: Data derived from Peak Let-Thru Curves
Peak Let-Thru Curve (JTD & JTDID)
JTD SERIES CLASS J FUSE