Page 126 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

®
Protistor Square-body Fuses
NH Plain Blades - 690 VAC
aR - 690 VAC sizes 000 to 3

Times/Current Characteristics

SIZE 000 SIZE 00
t (s) 20 25 80 100 160 250 t (s) 25 32 63 50 80 125 200 315
16 32 40 50 63 125 200 315 20 40 100 160 250
4 10 4
10
a = 130
3 10 3 B1 = 1,25
10 a = 130 A2 = 0,6
B1 = 1,25 B2 = 0,6
A2 = 0,6 Cf3 = 0,8
2 2
10 B2 = 0,6 10
Cf3 = 0,8 C C'
1 1
10 10
C C'
0
0
10 10
-1
-1
10 10
-2 10 -2
10
-3 10 -3
10

-4 -4
10 10 2 3 4
2 3 4 10 10 10 Ip (A)
10 10 10 Ip (A)
Cut off characteristics - Peak let thru current
Ic(kA) SIZE 000 Ic(kA) SIZE 00
5 10 5
10
Ic = 2.5 Ip Ic = 2.5 Ip
Ic = 2 Ip
Ic = 2 Ip
315
315 250
4 4 200
10 250 10
200 125 160
160 100
125
100 80 63
80 50
63 40
50 32
40 25
32 20
25
3 20 3
10 16 10
2
2
10 10
2 3 4 5 6 10 2 10 3 10 4 5 6 Ip (kA)
10 10 10 10 10 Ip (kA) 10 10
2
Total I t and total operating time @ 690 V
SIZE 00
SIZE 000 10.0 ms (3.00 ms) 6.0 ms (0.80 ms)
2
2
2
2 I t(A s) I t(A s) 10.0 ms (5.00 ms)
10.0 ms (3.00 ms) 6.0 ms (0.80 ms) 8.0 ms (1.60 ms) 4.0 ms (0.40 ms)
10.0 ms (5.00 ms) 8.0 ms (1.60 ms) 4.0 ms (0.40 ms)
6
10 5
10 315
250
10 5 315 200
250 10 4 160
200 125
4 160 Value between 100
10
125
100 parentheses pertain 80
3 63
80 10
2
3 63 to prearcing I t
10 50
50 40
40 32
32
25
2
2 25 10
10 20 20
16
10 1 10 1 10 2 10 3 10 4 10 5 Ip (A)
10 2 10 3 10 4 10 5 Ip (A)
SCAC106 03/06