Page 10 - Ferraz semiconductor UL

Semiconductor (A) fuses
Semiconductor (AC) fuses

American Round Fuses

Form 101 Range
A30QS

Semiconductor Protection Fuses

2
Watts Loss at Rated Current Clearing I t at 300VDC,
100kA, L/R = 10ms
Ampere Watts Loss (W) Ampere Watts Loss (W)
Rating Rating
Type 1 Type 4 Type 4 Type 128
2
Ampere Clearing I t Ampere Clearing I t
2
1 0.9 175 27 Rating (A s X 10 ) Rating (A s X 10 )
2
2
3
3
2 1.0 200 30
3 1.4 225 33 35 0.45 450 100
4 1.7 250 41 40 0.58 500 130
5 2.0 275 44 50 0.96 550 150
6 2.3 300 47 60 1.3 600 190
7 2.6 350 49 70 1.3 700 200
8 3.0 400 56 80 2.1 800 260
10 4.0 450 53 90 2.5 900 300
12 4.9 500 59 100 3.3 1000 360
15 6.4 550 65 125 5.0 1200 710
20 8.8 600 69 130 5.0 1500 1200
25 10.5 700 90 73 150 7.5 1600 1400
30 12.4 800 108 84 175 8.3 1800 1600
35 6.4 900 94 200 12 2000 2100
40 7.0 1000 105 225 18 2500 3300
45 9.0 1200 110 250 20 3000 4300
50 9.9 1500 140 275 25 3500 5900
60 11.6 1600 150 300 29 4000 7700
70 11 1800 170 350 50 4500 9900
80 11 2000 190 400 66
90 13 2500 230
100 13 3000 340
125 16 3500 380
130 16 4000 450
150 19 4500 500
DC Voltage Capability vs.
Watts loss vs. Percent Rated Current Circuit Time Constant (ms)

CORRECTION FACTOR FOR WATTS LOSS TYPE 4, 128 DC VOLTAGE TYPE 4, 128

PERCENT RATED CURRENT L/R TIME CONSTANT (MS)

SCAC9
12/04