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URB
URB 13
FUSES
Electrical Characteristics
Size
Rated voltage
Operating class
Rated breaking capacity
00
AC 690/700 V
aR
600 V / 300 kA · 700 V / 200 kA
Rated
Part No.
Part No.
Part No.
Power
Pre-arcing
Total
current
with Topindicator
without Topindicator
Topindicator and
loss
l
2t-value
l
2t-value @ 660 V
fitting for microswitch
WA
2sA2s
35 A
20 189 20
20 189 21
20 412 20
8
66
360
40 A
20 189 20
20 189 21
20 412 20
10
90
500
50 A
20 189 20
20 189 21
20 412 20
12
140
770
63 A
20 189 20
20 189 21
20 412 20
14
250
1,400
80 A
20 189 20
20 189 21
20 412 20
17
470
2,600
100 A
20 189 20
20 189 21
20 412 20
21
730
4,000
125 A
20 189 20
20 189 21
20 412 20
25
1,300
7,200
160 A
20 189 20
20 189 21
20 412 20
31
2,800
15,400
180 A
20 189 20
20 189 21
20 412 20
34
4,200
23,100
200 A
20 189 20
20 189 21
20 412 20
37
5,000
27,500
250 A
20 189 20
20 189 21
20 412 20
44
8,500
46,800
315 A
20 189 20
20 189 21
20 412 20
53
15,600
86,000
350 A
20 189 20
20 189 21
20 412 20
57
20,000
110,000
400 A
20 189 20
20 189 21
20 412 20
68
28,400
156,000
Cut-off-characteristics
Time / Current Characteristics
RMS Prospective Current
Prospective Short Circuit Current
t(s)
Ic
(kA)
I(A)
I(kA)
Arc voltage-Diagram
U
L
____
V
AC
K
B
K
W
U
B
____
V
AC
U
B
____
V
AC
I
B
___
I
N
Reduction factor for total I2t-value
Reduction factor for power loss
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