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Semiconductor (A) fuses
Semiconductor (AC) fuses
American Round Fuses
Form 101 Range
A60X
Semiconductor Protection Fuses
Watts Loss @ Rated Current
Ampere Watts Ampere Watts Ampere Watts
600 VAC Fault Load
Rating Loss (W) Rating Loss (W) Rating Loss (W)
10 3.8 100 11 700* 57
Fig. A
15 4.5 125 12 700** 52
20 4.0 150 14 800* 67
25 7.3 175 16 800** 59
30 8.7 200 19 1000 72
600 VAC Fault Load
35 5.2 225 21 1200 86
40 6.3 300 29 1500 107
50 7.4 350 35 1600 117
Fig. B
60 9.1 400 37 1800 133
70 7.6 450 42 2000 148
2
I t Data – 600 Volts AC, 100kA 80 8.9 500 47 2500 183
90 9.7 600 56
2
Fuse I t data *Type 4 **Type 128
Ampere Clearing at 600V
Rating Melting 1 Fuse 2 Fuses Watts Loss vs. % Rated Current (Types 1 & 4)
(Fig. A) in series(Fig. B)
2
2
2
(A s) (A s) (A s)
1 .06 .11 .09
2 .22 .45 .36
3 .50 1.0 .80
4 .90 1.8 1.4
5 1.4 2.8 2.2
6 2.0 4.0 3.2
7 2.7 5.4 4.3
8 3.6 7.1 5.7
10 16 40 30 CORRECTION FACTOR FOR WATTS LOSS
12 22 64 48
15 35 100 70
20 60 170 130
25 95 275 210
30 140 400 290
35 270 1,800 1,200
40 350 2,400 1,600
45 450 3,000 2,000
50 550 3,600 2,400
60 800 5,400 3,600
70 4,000 13,000 9,800
80 5,300 17,000 13,000 PERCENT RATED CURRENT
90 6,700 22,000 16,000
100 8,300 27,000 20,000 Watts Loss vs. % Rated Current (Type 128)
125 13,000 42,000 31,000
150 19,000 60,000 45,000
175 25,000 80,000 61,000
200 33,000 110,000 80,000
225 42,000 140,000 100,000
250 52,000 170,000 125,000
300 75,000 240,000 180,000
350 100,000 340,000 240,000
400 130,000 490,000 320,000
450 170,000 620,000 400,000
500 210,000 770,000 500,000
600 300,000 1,100,000 720,000 CORRECTION FACTOR FOR WATTS LOSS
700 430,000 1,700,000 1,000,000
800 560,000 2,250,000 1,400,000
1000 875,000 3,500,000 2,200,000
1200 1,250,000 5,000,000 3,100,000
1500 2,000,000 7,900,000 4,900,000
1600 2,200,000 9,000,000 5,600,000
1800 2,800,000 11,000,000 7,100,000
2000 3,500,000 14,000,000 8,900,000
PERCENT RATED CURRENT
SCAC23
12/04