Page 321 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

®
Other Protistor Fuses
Ferrule Fuses
10x38 URB/URD - 500 to 600 VAC

Corrective factor - Peak arc voltage

Corrective factor Peak arc voltage

K 600 V UR
1 : 0.1 up to 0.8 A
1

0,6 These mean curves show
1
the variation of the
0,2 2
total clearing time (I t )
t
200 400 600 U(V) and the total clearing
duration t as a function
t
of operating voltage U.
K
500 V UR
1,2 1 : 1 up to 5 A
1 2 : 6 up to 30 A
0,8
0,6
1 This curve shows the peak value Um of
0,4
0,2 2 the arc voltage which appears across the
fuse link as a function of the operating
100 300 500 U(V)
voltage U @ cos ϕ = 0.15.

D.C. Application data for fuses with trip indicator

500 V URD IN ≥ 6A 500 V URD IN ≥ 6A

L
(ms)
R
80
70
60
50
40
30
20

10
0 This curve shows the peak value Um of
100 200 300 400 500 600 U(V) the arc voltage which appears across the
fuse link as a function of the operating
voltage U.

SCAC173
12/04