Low Voltage Fuses
BLC, CR and CS types
Super Rapid Fuses
BLC, CR and CS types
Super Rapid Fuses
150–1500 Volts AC
10–4700 Amps
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Description
The FUJI BLC, CR and CS types are
extremely reliable fuses which have
been specially developed to provide
protection for silicon diodes and
thyristors and are suitable for inverters
using semiconductors or transformersrectifiers. FUJI Super Rapid Fuses are
designed with a very small total I 2 t
value which gives them a high speed
interrupting action in the face of
abnormal currents.
In addition the arc voltage generated at
the time of interruption has a low value
so that faults will not influence related
electric machinery and equipment.
These fuses can carry out the
protection of many types of circuits
rating from the semiconductor
overcurrents to destructive shortcircuiting faults-i.e. when the
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SD-36
BLC
SM-388
CR2L
SI-431
CS5F
semiconductors short or circuits fail the
sound elements will be quickly isolated
from the fault circuits.
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Features
• The total clearing I 2t is small and the
semiconductor circuit is completely
protected.
• Since the peak arc voltage at the
time of interruption is low damage to
other equipment does not occur.
SI-429
CS10F
• High interrupting capacity of 200kA
at 1000V AC
• The CS type is provided with a blown
fuse indicator. An alarm contact
block (1NO or 1NC) can also be
attached.
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UL recognized: CR2L/UL,CR2LS/UL,
CR6L/UL
(File No. E92312)
CSA certificated: CR2LS/UL
(File No. LO4000-4090)
TÜV: CR2LS/UL (10-100A),
CR2L/UL (150-350A)
(Rep. No. E9450643E02)
CR6L/UL (50-300A)
(Rep. No. E9560543E02)
Specifications
Rated
current
(A)
12
20
23
45
75
90
120
140
30
50
75
100
125
140
150
175
200
225
260
300
325
350
400
450
500
550
600
Rated Peak
voltage arc
voltage
(V)
550V
1550
AC 1550
1550
1380
1250
1250
1200
1200
250V
Max.
AC 500
Max.
interrupting I2t
Watt
loss
Fuse-link
Rated
current
(Amp ×sec.)
2
× 103
0.09
0.27
0.39
1.8
5
11.5
33
100
0.35
0.85
2.3
4.0
6.5
7.0
9.5
13
17
22
27
38
49
60
103
140
160
200
215
Type
(W)
5.1
8.5
10
19
32
38
51
59
4.0
6.0
9.0
12.0
14.0
16.0
18.0
21.0
23.0
26.0
30.0
35.0
37.0
37.0
39.0
46.0
48.0
51.0
56.0
BLC012-1
BLC020-1
BLC023-1
BLC045-1
BLC075-1
BLC090-1
BLC120-1
BLC140-1
CR2L-30
CR2L-50
CR2L-75
CR2L-100
CR2L-125
CR2L-140
CR2L-150
CR2L-175
CR2L-200
CR2L-225
CR2L-260
CR2L-300
CR2L-325
CR2L-350
CR2L-400
CR2L-450
CR2L-500
CR2L-550
CR2L-600
(A)
10
20
30
50
75
100
20
30
50
75
100
Rated Peak
Max.
voltage arc
interrupting I2t
voltage (Amp2×sec.)
× 103
(V)
250V
Max.
0.04
AC 500
0.17
0.35
0.85
2.3
4.0
600V
Max.
0.14
AC 1200
0.35
1.8
3.0
7.0
150
200
250
300
350
400
500
600
18
30
70
95
150
200
390
700
Watt
loss
Fuse-link
Type
(W)
1.2
3.0
4.0
6.0
9.0
12.0
4.0
7.0
9.0
12.5
15
CR2LS-10
CR2LS-20
CR2LS-30
CR2LS-50
CR2LS-75
CR2LS-100
CR6L-20
CR6L-30
CR6L-50
CR6L-75
CR6L-100
22.0
34.0
37.0
40.0
45.0
55
60
70
CR6L-150
CR6L-200
CR6L-250
CR6L-300
CR6L-350
CR6L-400
CR6L-500
CR6L-600
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Interrupting capacity
CR2LS . 100kA at 250V AC
CR6L .... 100kA at 600V AC
Interrupting capacity
BLC ...... 100kA at 550V AC
CR2L .... 100kA at 250V AC
Fuji Electric FA components & Systems Co., Ltd./D & C Catalog
Information subject to change without notice
08/35
