Page 115 - Ferraz semiconductor DIN

Protistor ®

Times/Current Characteristics size 000-00

32A 50A 80A
25A 40A 63A 100A 125A
7000 a=130 Cut off characteristics - Peak let thru
5000 160A A 2 =0.75
3000 B 1 =1.25 current - size 000-00
2000
B 2 =0.80 for tp>100s
70000 ----- : 000 size ----- : 00 size
160 A
1000 B 2 =0.75 for 100≥tp≥5s 50000
700 B 2 =0.60 for 5s>tp Im = 2.3 Ip 125 A
500 30000 100 A
Cf 3 =0.80
300 20000 80 A
200 ----- : 000 size ----- : 00 size 10000 63 A
100 7000 50 A
70 5000
50 Maximum peak let thru current (Im)(A) 3000 40 A
30
Actual prearcing time (s) 10 7 5 3 2 1000 25 A Protistor ® Square-body Fuses: NH Plain Blades gS
32 A
2000
20
700
500
300
0.7 1 200
0.5 200 300 500 700 1000 2000 3000 5000 7000 10000 20000 30000 50000 70000 100000 200000
0.3
0.2 50 Hz RMS Symetrical prospective current (Ip)(A)
0.1
0.07
0.05
0.03 Peak arc voltage vs applied AC voltage size 000
0.02
0.01
0.007 1600
0.005
0.003 1500
0.002
1400
0.001
Peak arc voltage (V)
0.0007 1300
0.0005 1200
0.0003
0.0002 1100
30 50 70 100 200 300 500 700 1000 2000 3000 5000 1000
900
RMS value of prearc current (A) 800
700
600

100 200 300 400 500 600 700
Clearing I²t and arcing time correction
Applied AC voltage (V)
factor vs Applied AC voltage size 000-00

1.3
1.2
Watts loss vs % rated current size 000-00
1.1 1
Clearing I 2 t and arcing time correction factor 0.8 Correction Factor for Watts Loss 0.8
0.9

0.7
0.6
0.6
0.5
0.4
0.3
0.2 0.4
0.2
0.1
100 200 300 400 500 600 700 50 60 70 80 90
Applied AC voltage (V)
% rated current

4