High Speed Fuses
Section Contents
Page
General Applications . . . . . . . . . . . . . . . . . . . . . . . . 94-95
North American fuses & accessories . . . . . . . . . . . .94-113
DFJ - High speed Class J fuse . . . . . . . . . . . . . . . . . . .97
Square Body fuses & accessories . . . . . . . . . . . . 114-176
BS 88 fuses & accessories . . . . . . . . . . . . . . . . . .177-185
Ferrule fuses & accessories. . . . . . . . . . . . . . . . . .186-206
High Speed
Fuses
93
High Speed Fuses
General Applications
Rated Voltage
Power Factor
The AC voltage rating of Cooper Bussmann® fuses is given
in volts rms. Fuses tested to IEC are tested at 5% above
their rated voltage. British Style BS 88 fuses are tested at
10% above its rated voltage. UL recognition tests are
performed at the rated voltage.
For other power factor
values, the total clearing
integral can be
calculated as a multiple
of the clearing integrals,
the correction factor K
and the correction factor
X.
1.0
Arc Voltage
0.7
Rated Current
Rated current is given in amps rms. Cooper Bussmann fuses
can continuously carry the rated current.
X
0.9
0.8
Melting Characteristic
The melting
10
6
4
characteristic
2
shows the virtual
10
melting time in
6
4
seconds as a
2
function of the
10
6
prospective current
4
in amperes rms.
2
10
The fuses are
6
4
specially
2
constructed for
10
6
short-circuit
4
protection against
2
high level fault
10
6
currents. Loading
4
2
and operation of
10
the fuse in
6
4
the non2
continuous/dashed
10
6
section of the melt
4
curve must be
2
10
avoided. The curve
2
4
6 8 10
2
4
6 8 10
10
Prospective Current In Amperes RMS
can also be read
as the real melting
time as a function of the RMS value of the pre-arc current.
4
3
1
0
–1
–2
–3
–4
1
2
Clearing Integrals
1.5
The total clearing I2t at
rated voltage and at
power factor of 15% are
given in the electrical
characteristics. For
other voltages, the
clearing I2t is found by
multiplying by correction
factor, K, given as a
function of applied
working voltage, Eg,
(rms).
1.0
3
K
0.2
0.3
0.4
103
9
8
7
6
5
4
Eg
200 300
Watts loss at rated
current is given in the
electrical characteristics.
The curve allows the
calculation of the power
losses at load currents
lower than the rated
current. The correction
factor, K p , is given as a
function of the RMS load
current, Ib , in % of the
rated current .
0.5
COS ␸
1.4
1.2 UL
3
Power Losses
400
500
600 660
1.0
Kp
0.8
0.6
0.5
0.4
0.3
0.2
Ib
0.1
30 40 50
60
70
80 90 100%
Cut-Off Current
A fuse operation relating to short-circuits only. When a fuse
operates in its current-limiting range, it will clear a shortcircuit in less than 1⁄2 cycle. Also, it will limit the instantaneous
0.5
0.4
105
0.3
0.2
Eg
100 200 300 400 500 600 660
Peak Let-Through Current
Virtual Pre-Arcing Time In Seconds
2
0.1
This curve gives the
peak arc voltage, U L ,
which may appear
across the fuse during its
operation as a function
of the applied working
voltage, E g , (rms) at a
power
factor of 15%.
104
103
A
B
2 ≈ 10 2
102
103
104
Prospective Current in Amps RMS
105
106
peak let-through current to a value substantially less than
that obtainable in the same circuit if that fuse were replaced
94
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
General Applications
with a solid conductor of equal impedance.
A asymmetrical current
B symmetrical current
Parallel Connection
When fuses are connected in parallel it is recommended that
the applied voltage does not exceed 0.9 UN (the rated
voltage of the fuse). This is due to the fact that the energy
released within the fuses may be unevenly shared between
the parallel connected barrels.
When fuses are connected in parallel, one must take into
account that the current sharing is not necessarily equal. And
it must be checked, that the maximum load current is not
exceeded.
Fuses in series may not equally divide the applied voltage. It
is recommended that series connected fuses should only be
operated at fault currents that yield melting times less than
10 ms and a recovery voltage per fuse of less than or equal
to 0.9 UN (the rated voltage of the fuse).
Mounting Guidance
The recommendations below have to be followed when
mounting a Cooper Bussmann fuse with end plate threaded
holes.
1. Screw in studs: 5 N•m Max, 3 N•m Min
2. Attachment of the fuse to bussbar by means of nut and
washer:
Thread
Configuration
5
⁄16” – 18, M8
3
⁄8” – 16, M10
3
⁄8” – 24
1
⁄2” – 13, M12
1
⁄2” – 20
*1 N•m = 0.7375 lb-ft
Torque (N•m)*
Max
Min
25
20
45
40
45
40
65
50
65
50
Overloads
The design of Cooper Bussmann® fuses is such that they
can be operated under rather severe operating conditions
imposed by overloads (any load current in excess of the
maximum permissible load current).
In applications, there will be a maximum overload current,
Imax, which can be imposed on the fuse with a
corresponding duration and frequency of occurrence.
Time durations fall into two categories:
1. Overloads longer than one second
2. Overloads less than one second termed “impulse” loads.
The following table gives general application guidelines
which, in the expression Imax < (% factor) x It. It is the
Frequency of Occurrence
Less than once per month
Less than twice per week
Overloads (> 1 sec)
Imax < 80% x It
Imax < 70% x It
Impulse Loads (< 1 sec)
Imax < 70% x It
Imax < 60% x It
Several times per day
Imax < 60% x It
—
When impulse loads are an intrinsic/normal parameter of the
load current either as single pulse or in trains of pulses or
when their level is higher than the melting current at 0.01
seconds (per time-current curve), contact Cooper Bussmann
for application assistance.
In addition to the parameters set forth in the preceding table,
the RMS value of the load current as calculated for any
period of 10 minutes or more should not exceed the
maximum permissible load current.
Furthermore, it is important that a fuse should not be applied
in the non-continuous/dashed portion of the associated
time-current curve.
Any time-current combination point which falls in the
non-continuous/dashed portion of the time-current curve is
beyond the capability of the fuse to operate properly.
DC Operation
Depending upon the short-circuit time constant and the
magnitude of the prospective short-circuit current, the dc
voltage at which a fuse can be applied may be less than its
ac rating. Long time constants require a lower dc voltage.
Conversely, however, higher available prospective shortcircuit currents result in faster fuse openings and thus permit
a fuse to be operated at a higher DC voltage.
Consult Cooper
Bussmann for additional
information and application assistance when
fuses have to operate
under DC conditions.
1.0
Load Current Versus
0.8
Reduction Factor
0.9
Conductor Cross
Section
0.5 0 .6 0.7 0 .8 0.9
≈ (IEC cross section)
1 .0
Reduction of permissible
load current when the conductor cross section is less than
that given in IEC Publication 269-1 & 4 valid for Cooper
Bussmann high speed fuses.
Application Assistance
If you have application problems or need a fuse outside our
standard program, please contact the nearest Cooper
Bussmann representative. Phone numbers are shown on the
back cover.
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
95
High Speed
Fuses
Series Connection
melting current corresponding to the time “t” of the overload
duration as read from the time-current curve of the fuse. The
guidelines in the table below determine the acceptability of
the selected fuses for a given Imax.
High Speed Fuses
North American Fuses
Introduction
General Information
North American Contents
Catalog
Number
DFJ
FWA
FWA
FWX
FWH
KAC
KBC
FWP
FWJ
Amp
Range
1-600
1000-4000
70-1000
35-2500
35-1600
1-1000
35-800
5-1200
35-2000
Volts
600
130
150
250
500
600
600
700
1000
Accessories
Fuse Bases
113
North American Fuse Ranges
Amps
1000-4000
70-1000
35-2500
35-1600
1-1000
5-1200
40-600
35-2000
96
Page
97
98-99
100-101
102-103
104-105
106
107
108-110
111-112
Volts
130
150
250
500
600
700
800
1000
AC
X
X
X
X
X
X
—
X
DC
X
X
X
X
—
X
X
—
Cooper Bussmann offers a complete range of North
American blade and flush-end style fuses and accessories.
Their design and construction were optimized to provide:
• Low energy let-through (I2t)
• Low watts loss
• Superior cycling capability
• Low arc voltage
• Excellent DC performance
North American style fuses provide an excellent solution for
medium power applications. While there are currently no
published standards for these fuses, the industry has
standardized on mounting centers that accept
Cooper Bussmann fuses.
Voltage Rating
All Cooper Bussmann® North American style fuses are tested
at their rated voltage. Cooper Bussmann should be consulted
for applications exceeding those values.
Accessories
External and internal open fuse indication is available for
selected portions of the North American line. Fuse blocks are
available for most applications.
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
Drive Fuse High Speed Fuses
Time-Current Characteristic Curves—Average Melt
Specifications
Description: High speed, current-limiting fuse.
The Cooper Bussmann® Drive Fuse will provide maximum
protection for AC and DC drives and controllers and meet
NEC® branch circuit protection requirements. The Drive Fuse
has the lowest I2t of any branch circuit fuse to protect power
semiconductor devices that utilize diodes, GTOs, SCRs and
SSRs.
Dimensions: See page 15 for Class J dimensions.
Construction: Melamine tube with silver fuse element.
Ratings:
Volts — 600Vac (or less), 450Vdc (or less)
Amps — 1-600A
IR — 200kA RMS Sym., 100kA DC
Agency Information: CE, Std. 248-8, Class J, UL Listed,
Guide JDDZ, File E4273, CSA Certified, Class 1422-02, File
53787.
Current Limitation Curves
High Speed
Fuses
DFJ Class J
Features and Benefits
• Easily coordinated with existing and new variable speed
drives and electric controllers.
• Standard Class J dimensions allowing the use of readily
available fuse blocks, holders, and switches.
• Allows the lowest let-thru energy of any branch circuit
overcurrent protective device.
Typical Applications
• Protection of ac & dc drives
• Equipment using power semi-conductor devices
Catalog Numbers (Amps)
DFJ-1
DFJ-2
DFJ-3
DFJ-4
DFJ-5
DFJ-6
DFJ-8
DFJ-10
DFJ-12
DFJ-15
DFJ-20
DFJ-25
DFJ-30
DFJ-35
DFJ-40
DFJ-45
DFJ-50
DFJ-60
DFJ-70
DFJ-80
DFJ-90
DFJ-100
DFJ-110
DFJ-125
DFJ-150
DFJ-175
DFJ-200
DFJ-225
DFJ-250
DFJ-300
DFJ-350
DFJ-400
DFJ-450
DFJ-500
DFJ-600
Data Sheet: 1048
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
97
High Speed Fuses
North American — FWA 130V: 1000-4000A
Arc Voltage
FWA
This curve gives the peak
arc voltage, UL, which
may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power
factor of 15%.
Specifications
Description: North American
style flush-end high speed fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Volts: — 130Vac
Amps: — 1000-4000A
IR: — 200kA RMS Sym.
— 50kA @130Vdc
Agency Information: CE, UL Recognized on 1000-2000A
fuses
Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The
correction factor, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.
I2t
The total clearing I2t at
rated voltage and at power
factor of 15% are given in
the electrical
characteristics. For other
voltages, the clearing I2t is
found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).
1.5
K
1.0
200
100
Eg
50
0.5
0.6
0.5
0.4
0.3
0.2
Ib
0.1
0.3
0.2
Catalog
Numbers
FWA-1000AH
FWA-1200AH
FWA-1500AH
FWA-2000AH
FWA-2500AH
FWA-3000AH
FWA-4000AH
Eg
0.15
26
B
2.0
3.0
3.5
C
1.0
1.5
1.5
65
D
—
—
1.5
Fig. 1: 1000-3000A
104
130
Thread Depth
Tapped 3⁄8”-24 x 1⁄2”
Tapped 1⁄2”-20 x 1⁄2”
Tapped 1⁄2”-20 x 1⁄2”
Fig. 2: 4000A
1.875
1.875
70
Electrical Characteristics
I2t (A2 Sec)
Rated Current
Clearing
RMS-Amps
Pre-arc
at 130V
1000
170000
460000
1200
270000
730000
1500
520000
1400000
2000
860000
2400000
2500
1500000
4100000
3000
2100000
5700000
4000
3400000
9200000
•
•
•
•
Features and Benefits
Excellent DC performance
Low arc voltage and low energy let-through (I2t)
Low watts loss
Superior cycling capability
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
D
C
B
C
Data Sheet: 720001
98
60
• Watts loss provided at rated current.
• See accessories on page 113.
Fig.
1
1
2
150
80 90 100%
Catalog Numbers
1mm = 0.0394˝ / 1˝ = 25.4mm
B
100
1.0
Kp
0.8
30 40 50
Dimensions (in)
Catalog Number
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
300
Power Losses
Electrical Characteristics
Total Clearing
UL
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
Watts
Loss
60
70
78
108
130
150
257
High Speed Fuses
North American — FWA 130V: 1000-4000A
FWA 1000-4000A: 130V
Time-Current Curve
104
6
4
2
103
6
4
FWA-1000AH
FWA-1200AH
FWA-1500AH
FWA-2000AH
FWA-2500AH
FWA-3000AH
FWA-4000AH
2
102
6
4
High Speed
Fuses
Virtual Pre-Arcing Time In Seconds
2
101
6
4
2
10
0
6
4
2
10–1
6
4
2
10–2
6
4
2
10–3
6
4
2
10–4
2
103
4
6 8
2
4
104
Prospective Current In Amps RMS
6
8
105
Peak Let-Through Curve
2
105
6
Peak Let-Through Current
4
2
FWA-4000AH
FWA-3000AH
104
FWA-2500AH
FWA-2000AH
FWA-1500AH
6
FWA-1200AH
FWA-1000AH
4
2
103
103
2
4
6
104
2
4
6
105
Prospective Short-Circuit Current Symmetrical RMS
2
4
6
Data Sheet: 35785301
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
99
High Speed Fuses
North American — FWA 150V: 70-1000A
FWA
Arc Voltage
This curve gives the peak
arc voltage, UL, which may
appear across the fuse
during its operation as a
function of the applied
working voltage, Eg, (rms)
at a power factor of 15%.
Specifications
Description: North American style
stud-mount fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Volts: — 150Vac/dc
Amps: — 70-1000A
IR: — 100kA Sym. (70-400A)
— 200kA Sym. (450-1000A)
— 20kA @150Vdc (70-800A)
— 100kA @ 80Vdc (70-400A)
Agency Information: CE, UL Recognized
K
1.0
50
0.5
0.3
0.2
0.15
22
1)
2)
Eg
70
102
150
2.656
2.188
Catalog
Number
FWA-70B
FWA-80B
FWA-100B
FWA-125B
FWA-150B
FWA-200B
FWA-250B
FWA-300B
FWA-350B
FWA-400B
FWA-500A
FWA-600A
FWA-700A
FWA-800A
FWA-1000A
Rated
Current
RMS-Amps
70
80
100
125
150
200
250
300
350
400
500
600
700
800
1000
0.125
1.000
0.438
0.4
0.3
0.2
Ib
0.1
60
70
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 150V
470
4000
670
6000
1200
12000
1870
18000
2700
26000
4780
45000
7470
70000
10760
100000
15700
140000
20300
180000
39000
120000
46000
140000
75000
220000
92000
280000
170000
510000
80 90 100%
Watts
Loss
6.9
7.7
9.0
11.2
13.5
17.6
22.5
27.0
30.6
35.2
35.0
47.0
49.0
58.0
60.0
•
•
•
•
Features and Benefits
Excellent DC performance
Low arc voltage and low energy let-through (I2t)
Low watts loss
Superior cycling capability
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
Fig. 2: 500-1000A
3.500
2.438
1.250
0.250
150
0.6
0.5
• Watts loss provided at rated current.
• See accessories on page 113.
1.936
1.156
1.500
0.406
1mm = 0.0394” / 1” = 25.4mm
Data Sheet: 720002
100
100
1.0
Kp
0.8
Catalog Numbers
Dimensions (in)
Fig. 1: 70-400A
1.000
100
30 40 50
1) 500-1000A Range
2) 70-400A Range
0.750 0.312
200
Eg
Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The
correction factor, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.
1.5
The total clearing I2t at rated
voltage and at power factor
of 15% are given in the
electrical characteristics. For
other voltages, the clearing
I2t is found by multiplying by
correction factor, K, given as
a function of applied working
voltage, Eg, (rms).
300
Power Losses
Electrical Characteristics
Total Clearing I2t
UL
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
North American — FWA 150V: 70-1000A
FWA 70-1000A: 150V
Time-Current Curve
104
6
4
2
103
6
4
FWA-500A
FWA-600A
FWA-700A
FWA-800A
FWA-1000A
2
102
6
4
10
High Speed
Fuses
Virtual Pre-Arcing Time In Seconds
2
1
6
4
2
100
6
4
2
10–1
6
4
FWA-70A
FWA-80A
FWA-100A
FWA-125A
FWA-150A
2
10–2
6
4
2
–3
10
FWA-200A
FWA-250A
FWA-300A
FWA-350A
FWA-400A
6
4
2
10–4
2
102
4
6 8
2
4
6
103
Prospective Current In Amps RMS
8
104
Peak Let-Through Curve
106
6
4
FWA-400A
FWA-350A
2
FWA-300A
FWA-250A
104
FWA-200A
Peak Let-Through Current
FWA-150A
6
FWA-100A
4
2
3
10
6
FWA-80A
4
FWA-70A
2
102
2
102
4
6
2
103
4
6
2
104
4
6
2
105
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785310
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
101
High Speed Fuses
North American — FWX 250V: 35-2500A
FWX
Arc Voltage
This curve gives the peak
arc voltage, UL, which may
appear across the fuse
during its operation as a
function of the applied
working voltage, Eg, (rms)
at a power factor of 15%.
Specifications
Description: North American
style stud-mount and flush-end
fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Volts: — 250Vac/dc
Amps: — 35-2500A
IR: — 200kA RMS Sym.
Agency Information: CE, UL Recognized & CSA
Component Acceptance on 35-800A fuses (20kA IR
@250Vdc).
Power Losses
Watts loss at rated current is
given in the electrical char
acteristics. The curve allows
the calculation of the power
losses at load currents lower
than the rated current . The
correction factor, K p , is
given as a function of the
RMS load current, Ib , in %
of the rated current .
1.5
Electrical
Characteristics
K
1.0
Total Clearing I t
2
The total clearing I2t at rated
voltage and at power factor
of 15% are given in the
electrical characteristics.
For other voltages, the
clearing I2t is found by
multiplying by correction
factor, K, given as a
function of applied working
voltage, Eg, (rms).
0.5
1)
0.3
0.2
Eg
0.15
Fig. 1:
35-800A
D
2.59
2.44
2.94
3.03
—
1.50
75
125
200
250
300
1) 35-800A Range
2) 1000-2500A Range
E
2.25
2.19
2.25
2.28
—
—
F
0.34
0.34
0.41
0.41
—
—
G
0.63
1.00
1.00
1.50
—
—
Fig. 2:
1000-1200A
H
0.13
0.19
0.25
0.25
—
—
J
0.52
0.47
0.75
0.78
—
—
Tapped
Thread
Depth
—
—
—
—
3
⁄8”-24 x 1⁄2”
3
⁄8”--24 x 1⁄2”
Fig. 3:
1500-2500A
J
A
A
A D E C
D
B
F
G
800
600
500
400
Catalog
Number
FWX-35A
FWX-40A
FWX-45A
FWX-50A
FWX-60A
FWX-70A
FWX-80A
FWX-90A
FWX-100A
FWX-125A
FWX-150A
FWX-175A
FWX-200A
FWX-225A
FWX-250A
FWX-275A
FWX-300A
FWX-350A
FWX-400A
FWX-450A
FWX-500A
FWX-600A
FWX-700A
FWX-800A
FWX-1000AH
FWX-1200AH
FWX-1500AH
FWX-1600AH
FWX-2000AH
FWX-2500AH
Rated
Current
RMS-Amps
35
40
45
50
60
70
80
90
100
125
150
175
200
225
250
275
300
350
400
450
500
600
700
800
1000
1200
1500
1600
2000
2500
C
C
102
2)
Eg
200
50
100
150
200
250
1) 35-800A Range
2) 1000-2500A Range
1.0
Kp
0.8
0.6
0.5
0.4
0.3
0.2
Ib
0.1
60
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 250V
50
230
60
310
80
390
100
520
140
740
330
1400
430
1850
570
2450
740
3150
1130
4850
1620
6950
2170
9300
2790
12000
3210
14700
3960
18100
4720
21600
6000
27300
10600
48600
14500
66100
22100
101000
28000
128000
41100
188000
48800
190000
59000
230000
44000
360000
92000
750000
120000
880000
160000
1200000
320000
2300000
670000
4700000
70
80 90 100%
Watts
Loss
4.2
5.2
5.7
6.0
8.1
7.2
8.1
9.0
10.0
12.5
15.7
18.5
22
24
27
31
32
39
44
49
54
62
72
84
100
103
140
140
151
163
• See accessories on page 113.
Features and Benefits
• Excellent DC performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
H
B
1)
300
30 40 50
• Watts loss provided at rated current.
B
UL
103
Catalog Numbers
2)
Dimensions (in)
Amp
Rang e
Fig. A
B
C
35-60
1
3.19 0.81 1.59
70-200
1
3.13 1.22 1.59
225-600
1
3.84 1.50 1.59
700-800
1
3.84 2.00 1.59
1000-1200
2
2.59 3.00 1.50
1500-2500
3
2.59 3.50 1.50
1mm = 0.0394” / 1” = 25.4mm
1.4
1.2
Data Sheet: 720005
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
North American — FWX 250V: 35-2500A
FWX 35-800A: 250V
FWX 1000-2500A(H): 250V
Time-Current Curve
Time-Current Curve
104
6
4
104
2
103
3
10
FWX-200A
FWX-350A
FXW-400A
FWX-500A
FWX-600A
FWX-800A
6
4
2
FWX-1000AH
FWX-1200AH
FWX-1500AH
FWX-1600AH
FWX-2000AH
FWX-2500AH
2
10
101
6
4
2
Virtual Pre-Arcing Time In Seconds
100
FWX-35A
FWX-40A
FWX-60A
FWX-70A
FWX-100A
FWX-150A
10–1
10–2
10–3
10–4
102
2
103
Prospective Current In Amps RMS
104
1
High Speed
Fuses
Virtual Pre-arcing Time In Seconds
102
10
6
4
2
100
6
4
2
10–1
6
4
2
10–2
6
4
Peak Let-Through Curve
2
105
10–3
6
4
B
2
FWX-800A
FWX-600A
FWX-400A
FWX-300A
FWX-200A
10–4
2
103
4
6 8
2
4
6
104
Prospective Current In Amps RMS
8
105
Peak Let-Through Current
104
Peak Let-Through Curve
105
6
FWX-2500AH
4
103
A
Peak Let-Through Current
FWX-150A
FWX-100A
FWX-70A
FWX-60A
FWX-45A
FWX-35A
FWX-2000AH
FWX-1600AH
FWX-1500AH
FWX-1200AH
2
FWX-1000AH
104
6
4
102
102
103
104
105
Prospective Short-Circuit Current Symmetrical RMS
2
103
103
2
4
6
104
2
4
6
105
2
4
6
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 359
Data Sheet: 35785299
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
103
High Speed Fuses
North American — FWH 500V: 35-1600A
FWH
Arc Voltage
2.0
Specifications
Description: North American style
stud-mount fuses.
Dimensions: See Dimensions
illustration.
Ratings:
Volts: — 500Vac/dc
Amps: — 35-1600A
IR: — 200kA Sym.
— 50kA @ 500Vdc
Agency Information: CE, UL Recognition & CSA
Component Acceptance on 35-800A only (50kA IR@500Vdc).
UL Recognition on 35-1200A only, CSA Component
Acceptance: 35-1600A.
This curve gives the peak
arc voltage, UL, which
may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power
factor of 15%.
1.6
Electrical Characteristics
Total Clearing I2t
1.5
The total clearing I2t at rated
voltage and at power factor of
15% are given in the electrical
characteristics. For other
voltages, the clearing I2t is
found by multiplying by
correction factor, K, given as a
function of applied working
voltage, Eg, (rms).
1.0
K
0.5
2)
Fig.
1
1
1
1
1
1
1
2
Eg
0.15
100
250
400
500
1) 35-800A Range
2) 1000-1600A Range
Dimensions (in)
Amp
Rang e
35-60
70-100
125-200
225-400
450-600
700-800
1000-1200
1400-1600
A
B
3.188 0.813
3.625 0.947
3.625 1.156
4.340 1.500
4.340 2.000
6.340 2.500
6.969 3.000
See Drawing
C
1.593
1.736
1.836
2.090
2.090
2.090
3.219
D
2.541
2.853
2.892
3.440
3.530
4.970
5.465
E
2.193
2.807
2.768
2.750
2.780
3.440
4.475
F
0.344
0.352
0.344
0.410
0.410
0.530
0.625
G
0.719
0.750
1.000
1.000
1.500
2.000
2.375
H
0.125
0.125
0.188
0.250
0.250
0.380
0.438
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-1200A
A
D
E
C
H
G F
B
J
Fig. 2: 1400-1600A
10.219
0.125
0.5
3.219
0.625
3.5
104
103
800
600
2)
500
1)
400
300
100
Power Losses
Eg
200
300
400
500
1) 35-200 & 1000-1600A Range
2) 225-800A Range
Watts loss at rated
current is given in the
electrical characteristics.
The curve allows the
calculation of the power
losses at load currents
lower than the rated
current. The correction
factor, Kp, is given as a
function of the RMS load
current, Ib, in % of the
rated current.
J
0.518
0.375
0.406
0.750
0.780
1.300
1.120
Catalog
Numbers
FWH-35B
FWH-40B
FWH-45B
FWH-50B
FWH-60B
FWH-70B
FWH-80B
FWH-90B
FWH-100B
FWH-125B
FWH-150B
FWH-175B
FWH-200B
FWH-225A
FWH-250A
FWH-275A
FWH-300A
FWH-325A
FWH-350A
FWH-400A
FWH-450A
FWH-500A
FWH-600A
FWH-700A
FWH-800A
FWH-1000A
FWH-1200A
FWH-1400A
FWH-1600A
Rated
Current
RMS-Amps
35
40
45
50
60
70
80
90
100
125
150
175
200
225
250
275
300
325
350
400
450
500
600
700
800
1000
1200
1400
1600
1.0
Kp
0.8
0.6
0.5
0.4
0.3
0.2
Ib
0.1
30 40 50
60
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 500V
34
150
76
320
105
450
135
670
210
900
210
900
305
1400
360
1600
475
2000
800
3500
1100
4600
1450
6200
1900
8500
4600
23300
6300
32200
7900
40300
9800
49800
13700
63800
14500
72900
19200
96700
24700
127000
29200
149000
41300
206000
55000
298000
76200
409000
92000
450000
122000
600000
200000
1000000
290000
1400000
• Watts loss provided at rated current.
1.625
1.750
6.219
8.969
1.2
70
80 90 100%
Catalog Numbers
1)
0.3
0.2
UL
0.75
4.25
Watts
Loss
8
7.5
7.5
7.5
9.9
10.6
12.7
15
17
25
30
35
40
39
41
46
51
53
58
65
74
84
108
120
129
145
180
210
230
• See accessories on page 113.
Features and Benefits
• Excellent DC performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
•
•
•
•
Data Sheet: 720007
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
High Speed Fuses
North American — FWH 500V: 35-1600A
FWH 35-200A(B) & 900-1600A(A): 500V
Time-Current Curve
10
FWH 250-800A: 500V
Time-Current Curve
103
4
6
4
2
103
6
4
102
FWH-300A
FWH-400A
FWH-500A
FWH-600A
FWH-800A
2
102
6
4
101
Virtual Pre-Arcing Time In Seconds
101
6
4
2
100
6
4
FWH-80B
FWH-90B
FWH-100B
FWH-125B
FWH-150B
FWH-175B
FWH-200B
FWH-35B
FWH-40B
FWH-45B
FWH-50B
FWH-60B
FWH-70B
2
10–1
6
4
2
10–2
6
4
High Speed
Fuses
FWH-900A
FWH-1000A
FWH-1200A
FWH-1400A
FWH-1600A
2
100
10–1
10–2
2
10–3
6
4
10–3
2
10–4
2
4
6
8
102
2
4
6 8
2
103
Prospective Current In Amps RMS
4
6
8
104
10–4
102
Peak Let-Through Curve
103
104
Prospective Current In Amps RMS
105
Peak Let-Through Curve
105
105
B
FWH-1600A
FWH-1400A
6
FWH-1200A
FWH-1000A
4
2
4
104
Peak Let-Through Current
Peak Let-Through Current
10
6
4
2
103
FWH-800A
FWH-600A
FWH-500A
FWH-400A
FWH-300A
FWH-250A
103
FWH-200B
6
FWH-150B
FWH-125B
4
A
FWH-100B
FWH-80B
FWH-60B
FWH-50B
2
FWH-40B
FWH-35B
102
102
102
2
4
6
103
2
4
6
104
2
4
6
105
2
102
103
104
Prospective Short-Circuit Current Symmetrical RMS
105
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785304
Data Sheet: 360
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
105
High Speed Fuses
North American — KAC 600V: 1-1000A
KAC
Catalog Numbers (Amps)
KAC-1
KAC-2
KAC-3
KAC-4
KAC-5
KAC-6
KAC-7
KAC-8
KAC-9
KAC-10
KAC-12
KAC-15
KAC-17.5
KAC-20
Specifications
Description: North American style
stud-mount fuses. These 600V fuses are
supplied as replacements only. For new
installations, Cooper Bussmann recommends
the 700V FWP Series fuse.
Dimensions: See Dimensions illustrations.
Ratings:
Volts: — 600Vac
Amps: — 1-1000A
IR: — 200kA RMS Sym.
Agency Information: CE, UL Recognition
on 1-600A only.
KAC-25
KAC-30
KAC-35
KAC-40
KAC-45
KAC-50
KAC-60
KAC-70
KAC-80
KAC-90
KAC-100
KAC-110
KAC-125
KAC-150
KAC-175
KAC-200
KAC-225
KAC-250
KAC-300
KAC-350
KAC-400
KAC-450
KAC-500
KAC-600
KAC-700
KAC-800
KAC-1000
• See accessories on page 113.
Features and Benefits
• Low arc voltage and low energy let-through (I2t)
• Low watts loss
• Superior cycling capability
Typical Applications
• Power converters/rectifiers
• Reduced voltage starters
Dimensions (in)
Amp
Rang e
1-30A
35-60A
70-100A
110-200A
225-400A
450-800A
1000A
Fig.
1
2
2
2
2
1
1
A
2.875
4.375
5.000
5.140
6.182
6.250
7.250
B1
2.500
–
–
–
–
4.750
4.750
B2
–
3.750
4.063
4.390
4.815
–
–
B3
–
3.500
3.656
3.766
4.565
–
–
C
1.875
2.750
2.750
2.906
3.000
3.063
3.063
D
0.406
0.625
0.750
1.000
1.625
2.000
2.750
E
–
0.343
0.406
0.406
0.562
–
–
F
0.563
0.813
1.000
1.500
2.000
2.500
3.500
G
0.063
0.094
0.125
0.188
0.250
0.250
0.375
H
0.257
0.468
0.609
0.718
0.687
0.563
0.563
1mm = 0.0394˝ / 1˝ = 25.4mm
Fig. 1: 1-30 & 450-1000A
A
B1
C
G
D
F
H
Fig. 2: 35-400A
A
B2
B3
C
D
G
F
E
H
Data Sheet: 720009
106
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
North American — KBC 600V: 35-800A
KBC
Catalog Numbers (Amps)
KBC-100
KBC-110
KBC-125
KBC-150
KBC-175
KBC-200
KBC-225
KBC-250
KBC-300
KBC-350
KBC-400
KBC-450
KBC-500
KBC-600
KBC-800
• See accessories on page 113.
Features and Benefits
• Low arc voltage and low energy let-through (I2t)
• Low watts loss
• Superior cycling capability
Typical Applications
• Power converters/rectifiers
• Reduced voltage starters
High Speed
Fuses
Specifications
Description: North American
style stud-mount and flush-end
fuses. These 600V fuses are
supplied as replacements only.
For new installations, Cooper
Bussmann recommends the 700V
FWP Series fuse.
Dimensions: See Dimensions
illustrations.
Ratings:
Volts: — 600Vac
Amps: — 35-800A
IR: — 200kA RMS Sym.
Agency Information: CE, UL Recognition on 35-600A only.
KBC-35
KBC-40
KBC-45
KBC-50
KBC-60
KBC-70
KBC-80
KBC-90
Dimensions (in)
Amp
Rang e
35-60A
70-100A
110-200A
225-400A
450-600A
800A
Fig.
1
2
1
1
1
3
A
B
C
4.375 3.750 3.500
See Drawing
4.406 3.719 3.594
5.125 4.188 3.563
5.125 4.389 3.687
See Drawing
D
E
F
G
H
I
2.750 0.343 0.625 0.813 0.094 0.468
2.906 0.312 0.875 1.219 0.187 0.375
2.906 0.406 1.000 1.500 0.250 0.719
2.875 0.406 1.500 2.000 0.250 0.757
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-60 and 110-600A
A
B
C
D
E
H
F
G
I
0.312
0.750
1.000
0.125
4.406
3.656
2.906
Fig. 2: 70-100A
Fig. 3: 800A
4.000
3.750
‹/•" - 24 ≈ ⁄/™"
0.750
2.500 2.859
0.750
Data Sheet: 720010
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
107
High Speed Fuses
North American — FWP 700V: 5-1200A
FWP
Specifications
Description: North American
style stud-mount fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Volts: — 700Vac/dc
Amps: — 5-1200A
IR: — 200kA RMS Sym.
— 50kA @700Vdc
Agency Information: CE, UL Recognition & CSA
Component Acceptance on 5-800A
The total clearing I t at rated
voltage and at power factor of
15% are given in the electrical
characteristics. For other
voltages, the clearing I2t is
found by multiplying by
correction factor, K, given as
a function of applied working
voltage, Eg, (rms).
K
1.0
2)
C
1.855
2.750
2.594
2.840
2.840
2.840
2.844
1)
0.3
0.2
3)
Eg
0.15
316
460
604
700
E
2.477
3.312
3.563
3.500
3.530
4.190
5.062
F
0.250
0.344
0.344
0.410
0.410
0.530
0.625
G
0.405
0.725
0.750
1.000
1.500
2.000
1.500
H
0.063
0.125
0.125
0.250
0.250
0.380
0.250
I
0.250
0.542
0.375
0.750
0.780
1.300
0.875
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 5-800A
Fig. 2: 900-1000A
Fig. 3: 1200A
3.500
1.375
0.125
J
0.500
5.966
7.594
A D E C
9.590 6.840
3.844
0.625
1.031
2.750
0.5
3.500
H
B
6
5
Eg
300
500
600
0.750
4.250
Catalog
Numbers
FWP-5B
FWP-10B
FWP-15B
FWP-20B
FWP-25B
FWP-30B
FWP-35B
FWP-40B
FWP-50B
FWP-60B
FWP-70B
FWP-80B
FWP-90B
FWP-100B
FWP-125A
FWP-150A
FWP-175A
FWP-200A
FWP-225A
FWP-250A
FWP-300A
FWP-350A
FWP-400A
FWP-450A
FWP-500A
FWP-600A
FWP-700A
FWP-800A
FWP-900A
FWP-1000A
FWP-1200A
Rated
Current
RMS-Amps
5
10
15
20
25
30
35
40
50
60
70
80
90
100
125
150
175
200
225
250
300
350
400
450
500
600
700
800
900
1000
1200
700
1) 125-600A Range
2) 35-100 & 700-1200A Range
1.0
Kp
0.8
0.6
0.5
0.4
0.3
0.2
Ib
30 40 50
60
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 700V
1.6
10
3.6
20
10
75
26
180
44
340
58
450
34
160
76
320
135
600
210
950
305
2000
360
2400
415
2700
540
3500
1800
7300
2900
11700
4200
16700
5500
22000
7700
31300
10500
42500
17600
71200
23700
95600
31000
125000
36400
137000
45200
170000
66700
250000
54000
300000
78000
450000
91500
530000
120000
600000
195000
1100000
Features and Benefits
• Excellent DC performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
•
•
•
•
70
80 90 100%
Watts
Loss
1.5
4
5.5
6
7
9
12
12
12
15.5
18
21
25
27
28
32
35
43
45
48
58
65
78
94
107
122
125
140
150
170
190
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
Data Sheet: 720012
108
400
• Watts loss provided at rated current. • See accessories on page 113.
1.625
1.750
0.625
G
3.844
10.844
5.154
F
2)
8
Catalog Numbers
0.5
D
2.477
3.708
3.625
4.190
4.280
5.720
5.562
1)
0.1
Dimensions (in)
A
B
2.870 0.563
4.375 0.813
4.406 0.947
5.090 1.500
5.090 2.000
7.090 2.500
6.630 2.000
See Drawing
See Drawing
UL
3
Watts loss at rated current is
given in the electrical
characteristics. The curve
allows the calculation of the
power losses at load
currents lower than the rated
current. The correction factor,
Kp, is given as a function of
the RMS load current, Ib, in
% of the rated current.
1) 35-100A Range
2) 125-600A Range
3) 700-1200A Range
Amp
Rang e Fig.
5-30
1
35-60
1
70-100
1
125-200 1
225-400 1
450-600 1
700-800 1
900-1000 2
1200
3
1.6
1.4
1.2
103
4
1.5
2
2
This curve gives the peak arc
voltage, UL, which may
appear across the fuse
during its operation as a
function of the applied
working voltage, Eg, (rms) at
a power factor of 15%.
Power Losses
Electrical Characteristics
Total Clearing I2t
Arc Voltage
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
North American — FWP 700V: 5-1200A
FWP 5-30A(B): 700V
FWP 35-100A(B) & 700-1200A(A): 700V
Time-Current Curve
Time-Current Curve
104
104
6
4
6
4
2
2
103
103
6
4
6
4
2
2
6
4
6
4
2
Virtual Pre-Arcing Time In Seconds
6
4
2
100
6
4
FWP-5B
FWP-10B
FWP-15B
FWP-20B
FWP-25B
FWP-30B
2
10–1
6
4
101
6
4
FWP-35B
FWP-40B
FWP-50B
FWP-60B
FWP-70B
FWP-80B
FWP-90B
FWP-100B
2
100
6
4
High Speed
Fuses
Virtual Pre-Arcing Time In Seconds
2
101
2
10–1
6
4
2
2
10–2
10–2
6
4
6
4
2
2
10–3
10–3
6
4
6
4
2
2
10–4
FWP-700A
FWP-800A
FWP-900A
FWP-1000A
FWP-1200A
102
102
10–4
2
4
6
8
2
101
4
6
8
2
102
4
6
8
103
2
4
6
8
2
4
6 8
2
103
Prospective Current In Amps RMS
102
Prospective Current In Amps RMS
Peak Let-Through Curve
4
6
8
104
Peak Let-Through Curve
106
104
FWP-1200A
6
FWP-1000A
6
FWP-800A
4
4
FWP-700A
2
FWP-30B
FWP-25B
2
104
6
4
Peak Let-Through Current
Peak Let-Through Current
10
3
2
10
FWP-20B
FWP-15B
FWP-10B
FWP- 5B
2
6
4
6
4
2
103
2
6
FWP-100B
4
101
101
2
4
6
102
2
4
6
103
2
4
6
104
2
4
6
105
FWP-70B
2
FWP-60B
Prospective Short-Circuit Current
FWP-50B
2
FWP-40B
FWP-35B
102
2
4
6
102
2
4
6
103
2
104
4
2
6
105
Prospective Short-Circuit Current
Data Sheet: 35785316
Data Sheet: 35785308
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
109
High Speed Fuses
North American — FWP 700V: 5-1200A
FWP 150-600A: 700V
Time-Current Curve
103
102
FWP-150A
FWP-200A
FWP-300A
FWP-400A
FWP-600A
Virtual Pre-Arcing Time In Seconds
101
100
10–1
10–2
10–3
10–4
102
103
104
105
Prospective
RMS
ProspectiveCurrent
CurrentInInAmperes
Amps RMS
Peak Let-Through Curve
105
B
Peak Let-Through Current
104
FWP-600A
FWP-400A
FWP-300A
FWP-200A
FWP-150A
103
A
102
102
103
104
105
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 361
110
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
High Speed Fuses
North American — FWJ 1000V: 35-2000A
FWJ
Arc Voltage
Specifications
Description: North American
style stud-mount fuses.
Dimensions: See Dimensions
illustration.
Ratings:
Volts: — 1000Vac
Amps: — 35-2000A
IR: — 25kA (35-200A)
— 100kA (250-2000A)
— 50kA @ 800Vdc (35200A, 450-600A)
Agency Information: CE, UL
Recognition File E91958 on
35-600A only.
C
3.110
3.085
3.261
3.500
3.465
3.312
K
1000 1400 1800
Ib
60
70
80 90 100%
Catalog Numbers
0.5
0.3
0.2
Eg
0.15
200
500
800
1000
E
4.180
4.156
4.055
4.150
4.706
4.962
F
0.352
0.352
0.445
0.433
0.562
0.625
G
0.750
1.000
1.000
1.500
2.000
2.750
H
0.125
0.188
0.250
0.250
0.375
0.500
I
0.380
0.407
0.819
0.764
1.201
0.880
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-2000A
A
D
E
C
H
G F
B
J
Data Sheet: 720027
600
Kp
30 40 50
1.0
D
4.235
4.266
4.803
4.811
5.984
5.472
400
High Speed
Fuses
B
0.940
1.125
1.526
2.000
2.500
3.500
800
Eg
Watts loss at rated current is
1.0
given in the electrical
characteristics. The curve 0.8
allows the calculation of the 0.6
0.5
power losses at load
0.4
currents lower than the
0.3
rated current. The
correction factor, Kp, is
0.2
given as a function of the
RMS load current, Ib, in %
of the rated current.
0.1
Dimensions (in)
Amp
Rang e Fig. A
35-60
1 5.000
70-100 1 4.932
125-200 1 5.685
250-400 1 5.768
500-600 1 7.201
800-2000 1 6.811
1200
200
1.5
The total clearing I2t at rated
voltage and at power factor of
15% are given in the electrical
characteristics. For other
voltages, the clearing I2t is
found by multiplying by
correction factor, K, given as
a function of applied working
voltage, Eg, (rms).
UL
1600
Power Losses
Electrical Characteristics
Total Clearing I2t
2000
This curve gives the peak arc
voltage, UL, which may
appear across the fuse
during its operation as a
function of the applied
working voltage, Eg, (rms)
at a power factor of 15%.
Catalog
Numbers
FWJ-35A
FWJ-40A
FWJ-50A
FWJ-60A
FWJ-70A
FWJ-80A
FWJ-90A
FWJ-100A
FWJ-125A
FWJ-150A
FWJ-175A
FWJ-200A
FWJ-250A
FWJ-300A
FWJ-350A
FWJ-400A
FWJ-500A
FWJ-600A
FWJ-800A
FWJ-1000A
FWJ-1200A
FWJ-1400A
FWJ-1600A
FWJ-1800A
FWJ-2000A
Rated
Current
RMS-Amps
35
40
50
60
70
80
90
100
125
150
175
200
250
300
350
400
500
600
800
1000
1200
1400
1600
1800
2000
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 1000V
210
2000
300
2500
470
3500
670
5000
1100
6900
1550
9700
1900
12000
2800
17500
4800
35000
6300
45000
7500
65000
11700
80000
16000
112000
23500
164000
33000
231000
47000
330000
39500
329000
61000
520000
87000
500000
190000
1100000
370000
2100000
470000
2700000
700000
4000000
925000
5300000
1330000
7600000
Watts
Loss
7
8
10
11
12
13
14
15
16
25
30
32
50
56
62
67
95
105
182
206
240
248
267
239
244
• Watts loss provided at rated current.
• See accessories on page 113.
•
•
•
•
Features and Benefits
Excellent DC performance
Low arc voltage and low energy let-through (I2t)
Low watts loss
Superior cycling capability
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
111
High Speed Fuses
North American — FWJ 1000V: 35-2000A
FWJ 35-600A: 1000V
FWJ 800-2000A: 1000V
Time-Current Curve
Time-Current Curve
104
104
6
4
6
4
2
2
103
103
6
4
6
4
2
2
102
102
101
6
4
Virtual Pre-Arcing Time In Seconds
2
Virtual Pre-Arcing Time In Seconds
6
4
FWJ-200A
FWJ-250A
FWJ-300A
FWJ-350A
FWJ-400A
FWJ-500A
FWJ-600A
6
4
2
100
6
4
2
101
6
4
2
100
6
4
2
10–1
6
4
10–1
6
4
2
10–2
6
4
2
10–3
FWJ-800A
FWJ-1000A
FWJ-1200A
FWJ-1400A
FWJ-1600A
FWJ-1800A
FWJ-2000A
2
FWJ-40A
FWJ-50A
FWJ-60A
FWJ-70A
FWJ-80A
FWJ-90A
FWJ-100A
FWJ-125A
FWJ-150A
FWJ-175A
2
10–2
6
4
2
10–3
6
4
6
4
2
10–4
2
10–4
102
2
4
6
8
2
103
4
6
8
2
4
6
8
2
103
4
6
8
104
Prospective Current In Amps RMS
Data Sheet: 35785309
Peak Let-Through Curve
2
FWJ-2000A
FWJ-1800A
FWJ-1600A
FWJ-1400A
FWJ-1250A
FWJ-1000A
FWJ-600A
FWJ-800A
FWJ-400A
FWJ-500A
FWJ-350A
FWJ-300A
FWJ-250A
FWJ-200A
FWJ-175A
FWJ-150A
FWJ-125A
FWJ-100A
FWJ-90A
FWJ-80A
FWJ-70A
FWJ-60A
FWJ-50A
FWJ-40A
105
6
4
Peak Let-Through Current
2
104
6
4
2
103
6
4
2
102
102
2
4
6
2
103
4
6
104
2
4
6
105
2
4
6
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785303
112
104
2
Prospective
Current
In Amperes
Prospective
Current
in AmpsRMS
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
4
6
8
105
High Speed Fuses
North American Fuse Accessories
Fuse Bases (Blocks)
Modular Style
Cooper Bussmann offers a comprehensive line of fuse bases
that provide the user with design and manufacturing flexibility.
Two identical half bases make up a Cooper Bussmann®
modular fuse base. These “split” units can be panel mounted
any distance apart to accommodate any length fuse.
Stud Type (Not sold in pairs)
C5268 Series
Stud Type
Connector Type
High Speed
Fuses
The simpler design is the C5268 Series modular fuse base.
With this design, the fuse terminal and cable (with
termination) are mounted on the same stud, minimizing labor
needed for installation. The stud type base is available in the
configuration shown in the table below.
Catalog
Max Fuse
Stud
Stud Dia.
Number
Amp Rating
Height (in)
& Threads
5
C5268-1
200
1.00
⁄16˝-18
5
C5268-2
200
1.75
⁄16˝-18
5
C5268-3
200
0.75
⁄16˝-18
1
C5268-4
100
1.00
⁄4˝-20
1
C5268-5
100
1.75
⁄4˝-20
BS Style
Connector Type
Cooper Bussmann also offers a modular style fuse base that
utilizes a tin-plated connector (for wire termination and heat
dissipation) and a plated-steel stud (for fuse mounting). The
connector type fuse base is available in the configurations
shown below. Consult Cooper Bussmann for additional
product details.
Modular
Max
Max Fuse
Data Sheet
Base Style
Voltage
Amp Rating
Number
1BS101
600
100
1206
1BS102
600
400
1207
1BS103
600
400
1208
1BS104
600
600
1209
BH-0xxx
700
100
1200
BH-1xxx
2500
400
1201
BH-2xxx
5000
400
1202
BH-3xxx
1250
700
1203
Refer to page 275 for BH style holders.
Fixed Center
Fixed Center Base Style
Cooper Bussmann offers a comprehensive line of fixed
mount style fuse bases under the trademark TRON® rectifier
fuse blocks. The cable and fuse connections are similar to
the stud type fuse base — both are mounted on the same
stud. Consult Cooper Bussmann for complete product details.
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
113