Page 333 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

®
Other Protistor Fuses
Ferrule Fuses
14x51 & 22x58 URC / URD - 600 to 690 VAC

DC Application data

14x51 URC - URD 14x51 URC - URD

L (ms) Um(V)
R 1000
80
900
70
800
60
700
50
600
40
500
30
100 200 300 400 500 600
20 U(V)
10
Minimum breaking current: see time-current characteristics
0
100 200 300 400 500 600
U(V)

22x58 URD 22x58 URD

Um(V)
L (ms) 1100
R
80
1000
70
900
60
800
50
700
40
600
30
100 200 300 400 500 600 700
20 U(V)
10

0
100 200 300 400 500 600
U(V)

This curve indicates the permissible value of time cons- This curve shows the peak value Um of the arc voltage which
tant L/r as a function of DC working voltage appears across the fuse-link as a function of the operating voltage U.

SCAC185
12/04