WESTCODE
An
IXYS Company
American Square Body Fuse – Short Blades
Date:- 18 Mar, 2005
Data Sheet Issue:- 1
Ultra Rapid
Semiconductor Protection Fuse
American Square Body Type
American Short Blades
Voltage Rating 700V
Current Rating 50A to 1600A
Sizes 0, 1, 2, 3
Key Features:
690V voltage rating complying with IEC, DIN and VDE standards
Exceptionally low I
2
t, power losses
Non Magnetic construction, highly reliable low voltage indicator system
Conform to UL, IEC, DIN and VDE standards
Increased technical performance give higher ratings and a reduction in volume and weight
All models with integrated trip-indicator
Microswitch system reference MS 3V 1-5
Data Sheet 070USxBxxxxB
Issue 1
Page 1 of 8
March, 2005
WESTCODE
An
IXYS Company
American Square Body Fuse – Short Blades
Main Characteristics:
Size
Voltage
U
N
(V)
Ref:
070US0B0050B
070US0B0063B
070US0B0080B
070US0B0100B
070US0B0125B
070US0B0160B
Current
rating
I
N
(A)
50
63
80
100
125
160
200
250
315
350
400
450
500
-
550
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(kA
2
s)
0.12
0.20
0.33
0.47
0.85
1.6
3
5.8
12
15.5
23
26
41
52
Total Clearing
I
2
t @ U
N
(kA
2
s)
0.68
1.1
1.8
2.5
4.5
8.5
15.5
30
62
80
120
150
240
300
Watt Losses
0.8I
N
I
N
4.5
7.5
9.5
13
15
18.5
21.5
25
22.5
30
32.5
44
44
45
9
14
19
26
30
37
43
50
55
60
65
88
88
90
Tested
Interrupting
rating
0
700V
070US0B0200B
070US0B0250B
070US0B0315B
070US0B0350B
070US0B0400B
070US0B0450B
070US0B0500B
070US0B0550B
170kA @700V
Notes:
Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference : MS 3V 1-5
Shaded data; not included on curves, refer to factory
Size
Voltage
U
N
(V)
Ref:
070US1B0160B
070US1B0200B
070US1B0250B
070US1B0315B
070US1B0350B
Current
rating
I
N
(A)
160
200
250
315
350
400
450
500
550
630
700
800
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(kA
2
s)
1.3
2.6
4.7
7.5
10.5
19
26.5
37
52
75
95
140
Total Clearing
I
2
t @ U
N
(kA
2
s)
7.0
13.5
25
40
55
100
140
195
280
390
490
800
Watt Losses
0.8I
N
I
N
27.5
22.5
25.5
32.5
33.5
34
35
36
37.5
42.5
42.5
60
35
45
52
65
67
68
70
72
75
85
95
120
Tested
Interrupting
rating
1
700V
070US1B0400B
070US1B0450B
070US1B0500B
070US1B0550B
070US1B0630B
070US1B0700B
070US1B0800B
170kA @700V
Notes:
Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference : MS 3V 1-5
Shaded data; not included on curves, refer to factory
Data Sheet 070USxBxxxxB
Issue 1
Page 2 of 8
March, 2005
WESTCODE
An
IXYS Company
American Square Body Fuse – Short Blades
Size
Voltage
U
N
(V)
Ref:
070US2B0400B
070US2B0450B
070US2B0500B
070US2B0550B
Current
rating
I
N
(A)
400
450
500
550
630
700
800
900
1000
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(kA
2
s)
15
20
28
37
54
76
115
170
240
Total Clearing
I
2
t @ U
N
(kA
2
s)
80
115
145
195
280
400
600
900
1250
Watt Losses
0.8I
N
I
N
32.5
40
45
47.5
52.5
55
60
62.5
67.5
75
80
90
95
105
110
120
125
135
Tested
Interrupting
rating
170kA @700V
2
700V
070US2B0630B
070US2B0700B
070US2B0800B
070US2B0900B
070US2B1000B
200kA @ 700V
Notes:
Minimum operating voltage for integrated trip indicator = 20V
Microswitch reference : MS 3V 1-5
Size
Voltage
U
N
(V)
Ref:
070US3B0500B
070US3B0550B
070US3B0630B
070US3B0700B
Current
rating
I
N
(A)
500
550
630
700
800
900
1000
1100
1250
1400
1600
Pre-arcing
I
2
t @ 1 ms
I
2
t
p
(kA
2
s)
19
27
40
55
95
135
170
240
350
480
500
Total Clearing
I
2
t @ U
N
(kA
2
s)
100
140
210
300
490
700
900
1260
1850
2500
3000
Watt Losses
0.8I
N
I
N
52.5
55
60
62.5
65
67.5
77.5
80
90
100
120
105
110
120
125
130
135
155
160
180
200
240
Tested
Interrupting
rating
3
700V
070US3B0800B
070US3B0900B
070US3B1000B
070US3B1100B
070US3B1250B
070US3B1400B
170kA @700V
200kA @ 700V
160kA @ 650V
650V
Notes:
065US3B1600B
Minimum operating voltage for integrated trip indicator = 20V
Micro switch reference : MS 3V 1-5
Shaded data; not included on curves, refer to factory
Electrical Characteristics:
Times vs current characteristics
The curves shown on page 4 indicate the pre-arcing time for each rated current as a function of RMS
value of pre-arcing current I:
-
-
Tolerances on this current ± 8%
Beyond 30 sec or 10 sec, small overloads must be eliminated by another device.
Curve CC’ represents the maximum times taken by the associated device to clear small overloads; only its
horizontal line is represented.
Its oblique line must be plotted according to sketch in top right corner:
- The intersection of the fuse and CC’ curves indicates the minimum breaking current I
pm
of the fuse.
Data Sheet 070USxBxxxxB
Issue 1
Page 3 of 8
March, 2005
WESTCODE
An
IXYS Company
American Square Body Fuse – Short Blades
Times vs current characteristics
Size 0
Size 1
Size 2
Size 3
Data Sheet 070USxBxxxxB
Issue 1
Page 4 of 8
March, 2005
WESTCODE
An
IXYS Company
American Square Body Fuse – Short Blades
Total clearing I²T:
The horizontal curves given below indicated the maximum values of total operating I
2
t (I
2
t
t
) as a function
of prospective current Ip @ 660V, cosϕ = 0.15. Oblique lines indicate the corresponding total operating
time T
t
, with pre-arcing time in brackets.
Size 0
Size 1
Size 2
Size 3
Data Sheet 070USxBxxxxB
Issue 1
Page 5 of 8
March, 2005
PCB Design
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