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
ꢀ 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 transformers-
rectifiers. FUJI Super Rapid Fuses are
designed with a very small total I2t
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
SD-36
SM-388
SI-431
SI-429
BLC
CR2L
CS5F
CS10F
semiconductors short or circuits fail the
sound elements will be quickly isolated
from the fault circuits.
• 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.
ꢀ Features
• The total clearing I2t is small and the
semiconductor circuit is completely
protected.
ꢀ 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)
protection of many types of circuits
rating from the semiconductor
overcurrents to destructive short-
circuiting faults-i.e. when the
• Since the peak arc voltage at the
time of interruption is low damage to
other equipment does not occur.
(Rep. No. E9450643E02)
CR6L/UL (50-300A)
(Rep. No. E9560543E02)
ꢀ Specifications
Rated Rated Peak
current voltage arc
Max.
Watt
Fuse-link
Type
Rated Rated Peak
current voltage arc
Max.
Watt
Fuse-link
Type
interrupting I2t loss
interrupting I2t loss
voltage (Amp2×sec.)
voltage (Amp2×sec.)
× 103
× 103
(A)
12
(V)
1550
(W)
(A)
10
(V)
Max.
AC 500
(W)
550V
0.09
5.1
8.5
10
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
250V
0.04
1.2
3.0
CR2LS-10
CR2LS-20
CR2LS-30
CR2LS-50
CR2LS-75
CR2LS-100
CR6L-20
CR6L-30
CR6L-50
CR6L-75
CR6L-100
20
30
0.17
0.35
0.85
2.3
20
23
AC 1550
1550
0.27
0.39
1.8
5
4.0
45
1380
19
50
6.0
75
1250
32
75
9.0
08
90
1250
11.5
33
100
38
100
4.0
12.0
120
140
1200
51
20
30
600V
Max.
0.14
0.35
1.8
3.0
7.0
4.0
7.0
9.0
12.5
15
1200
59
AC 1200
30
50
75
250V
Max.
0.35
4.0
6.0
9.0
12.0
14.0
16.0
18.0
50
AC 500
0.85
2.3
4.0
6.5
7.0
9.5
75
100
100
125
140
150
150
200
250
300
350
400
500
600
18
22.0
34.0
37.0
40.0
45.0
55
CR6L-150
CR6L-200
CR6L-250
CR6L-300
CR6L-350
CR6L-400
CR6L-500
CR6L-600
30
70
95
175
200
225
260
300
325
350
13
21.0
23.0
26.0
30.0
35.0
37.0
37.0
150
200
390
700
17
22
27
38
49
60
60
70
Interrupting capacity
CR2LS . 100kA at 250V AC
CR6L .... 100kA at 600V AC
400
450
500
550
600
103
140
160
200
215
39.0
46.0
48.0
51.0
56.0
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