High speed fuses
6
Contents
Description
Page
General applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
North American fuses and accessories . . . . . . . . . . . . . . . . . . . . 6-4
DFJ - high speed Class J fuse . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Square body fuses and accessories . . . . . . . . . . . . . . . . . . . . . 6-22
BS 88 fuses and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Ferrule fuses and accessories. . . . . . . . . . . . . . . . . . . . . . . . . 6-103
TM
High speed
fuses
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-1
High speed fuses
6
General applications
Rated voltage
The AC voltage rating of Eaton 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.
Rated current
Rated current is given in amps rms. Eaton fuses can
continuously carry the rated current.
Power factor
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.
X
1.0
0.9
0.8
Melting characteristic
Clearing integrals
104
6-2
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%.
2
103
6
4
2
102
6
4
2
101
6
4
2
100
6
4
Power losses
2
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 .
10–1
6
4
2
10–2
6
4
2
10–3
6
4
2
10–4
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).
0.7
Arc voltage
6
4
2
101
4
6
8 102
2
4
6
8 103
Prospective Current In Amperes RMS
1.5
1.0
K
0.3
0.4
0.5
COS w
103
9
8
7
6
5
4
3
200 300
1.0
Kp
0.8
400
500
Eg
600 660
0.6
0.5
0.4
0.3
0.2
0.1
30 40 50
60
70
Ib
80 90 100%
105
0.3
Eg
100 200 300 400 500 600 660
BUSSMANN SERIES FULL LINE CATALOG
1.4
1.2 UL
0.2
A fuse operation relating to short-circuits only. When a fuse
operates in its current-limiting range, it will clear a short-
0.5
0.4
0.2
0.1
Cut-off current
Peak Let-Through Current
Time In Seconds
The melting
characteristic
shows the virtual
melting time in
seconds as a
function of the
prospective current
in amps rms. The
fuses are specially
constructed for
short-circuit
protection against
high level fault
currents. Loading
and operation of
the fuse in the noncontinuous/dashed
section of the melt
curve must be
avoided. The curve
can also be read
as the real melting
time as a function
of the RMS value
of the pre-arc current.
104
103
A
B
2 ≈ 10 2
102
103
104
Prospective Current in Amps RMS
105
106
circuit in less than 1⁄2 cycle. Also, it will limit the instantaneous
peak let-through current to a value substantially less than
1007—July 2015
Eaton.com/bussmannseries
High speed fuses
6
General applications
that obtainable in the same circuit if that fuse were replaced
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.
Series connection
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 Bussmann series 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:
Torque (N•m)*
max
min
25
20
45
40
45
40
65
50
65
50
Overloads
The design of Eaton 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
Several times per day
Overloads (> 1 sec)
Imax < 80% x It
Imax < 70% x It
Imax < 60% x It
Impulse Loads (< 1 sec)
Imax < 70% x It
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 Eaton 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 Eaton for
additional information and
application assistance
when fuses have to
operate under DC
conditions.
Load current versus
conductor cross
section
Reduction Factor
1 .0
High speed
fuses
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
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.
0 .9
0 .8
Reduction of permissible
≈ (IEC cross section)
load current when the
conductor cross section is less than that given in IEC
Publication 269-1 and 4 valid for Bussmann series high
speed fuses.
0 .5 0 .6
0 .7
0 .8
0 .9
1 .0
Application assistance
If you have application problems or need a fuse outside our
standard program, please contact the nearest Eaton
representative.
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-3
High speed fuses
6
North American
Introduction
General information
North American contents
Catalog
number
DFJ
FWA
FWA
FWX
FWH
KAC
KBC
FWP
FWJ
Accessories
Fuse bases
Amps
1000-4000
70-1000
35-2500
35-1600
1-1000
5-1200
40-600
35-2000
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
Volts
130
150
250
500
600
700
800
1000
AC
X
X
X
X
X
X
—
X
North American fuse ranges
6-4
DC
X
X
X
X
—
X
X
—
BUSSMANN SERIES FULL LINE CATALOG
Page
6-5
6-6
6-8
6-10
6-12
6-14
6-15
6-16
6-19
Eaton 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
6-21
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 Bussmann
series fuses.
Voltage rating
All Eaton North American style fuses are tested at their rated
voltage. Eaton 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.
1007—July 2015
Eaton.com/bussmannseries
High speed fuses
Drive fuse
6
Catalog numbers (amps)
DFJ Class J
Specifications
Description: High speed, current-limiting fuse. The
Bussmann series DFJ 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 1-5 for Class J dimensions.
Construction: Melamine tube with silver fuse
element.
Ratings:
Volts — 600Vac (or less), 450Vdc (or less, 15-600A)
Amps — 1-600A
IR — 200kA RMS Sym., 100kA DC
Agency information: CE, UL Listed, Std. 248-8, Class J,
Guide JDDZ, File E4273, CSA Certified, Class 1422-02, File
53787.
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 and DC drives
• Equipment using power semiconductor devices
Catalog
number
DFJ-1
DFJ-2
DFJ-3
DFJ-4
DFJ-5
DFJ-6
DFJ-8
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
Rated current
RMS amps
1
2
3
4
5
6
8
12
15
20
25
30
35
40
45
50
60
70
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
I2t (A2 Sec) @ 600Vac / 100kA
Pre-arc
Clearing
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
4
110
8
365
12
610
20
1000
55
1100
90
1900
90
1900
140
2800
290
6000
450
3100
650
4600
1010
7200
1460
10500
1710
9500
3580
20000
5080
28000
6310
35000
9850
54500
11420
51000
17000
74500
23500
103000
38800
170000
62200
272000
44600
270000
79500
480000
138000
830000
Watts
loss
–
–
–
–
–
–
–
–
4.1
4.0
4.9
5.5
6.8
8.6
8.6
8.7
8.5
12
13
13
13
17
15
19
23
24
29
30
36
39
40
56
52
57
Time-current characteristic curves—average melt
Current limitation curves
High speed
fuses
Data Sheet: 1048
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-5
High speed fuses
6
North American
FWA 130V: 1000-4000A
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 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 JFHR2.E91958 on
1000-2000A fuses
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).
Catalog number
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
Dimensions - in
1mm = 0.0394˝ / 1˝ = 25.4mm
Fig.
1
1
2
B
2.0
3.0
3.5
1.5
1.0
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.
K
0.5
0.15
26
C
1.0
1.5
1.5
65
D
—
—
1.5
Fig. 1: 1000-3000A
104
Catalog
numbers
FWA-1000AH
FWA-1200AH
FWA-1500AH
FWA-2000AH
FWA-2500AH
FWA-3000AH
FWA-4000AH
Eg
130
Thread depth
Tapped 3⁄8”-24 x 1⁄2”
Tapped 1⁄2”-20 x 1⁄2”
Tapped 1⁄2”-20 x 1⁄2”
•
•
•
•
•
•
•
•
1.875
C
B
Typical applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
C
Data Sheet: 720001
6-6
BUSSMANN SERIES FULL LINE CATALOG
100
1007—July 2015
Eaton.com/bussmannseries
Eg
150
0.6
0.5
0.4
0.3
0.2
0.1
30 40 50
60
70
Features and benefits
Excellent DC performance
Low arc voltage and low energy let-through (I2t)
Low watts loss
Superior cycling capability
D
B
1.0
Kp
0.8
50
• Watts loss provided at rated current.
Fig. 2: 4000A
1.875
100
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
Catalog numbers
0.3
0.2
200
Power losses
Electrical characteristics
Total Clearing I2t
300
UL
Ib
80 90 100%
Watts
loss
60
70
78
108
130
150
257
High speed fuses
North American
6
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
Virtual Pre-Arcing Time In Seconds
2
101
6
4
2
0
10
6
4
2
10–1
6
4
2
10–2
6
4
2
10–3
6
4
2
2
103
4
6 8
2
4
104
Prospective Current In Amps RMS
6
8
High speed
fuses
10–4
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
2
4
6
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785301
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-7
High speed fuses
6
North American
FWA 150V: 70-1000A
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 (70-1000A)
*1000A rated @ 80Vdc.
Agency information: CE, UL Recognized JFHR2.E91958
Electrical characteristics
Total clearing I2t
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).
2
Dimensions - in
Fig. 1: 70-400A
1.5
1.0
0.3
0.2
0.15
22
1)
70
102
1.936
1.156
Eg
150
0.125
1.000
Fig. 2: 500-1000A
0.438
3.500
2.438
1.250
1.000
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
1) 500-1000A Range
2) 70-400A Range
2.656
2.188
0.750 0.312
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.
Catalog numbers
2)
0.250
1.500
Rated
current
RMS-amps
70
80
100
125
150
200
250
300
350
400
500
600
700
800
1000
•
•
•
•
•
•
•
•
Typical applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
Data Sheet: 720002
1007—July 2015
1.0
Kp
0.8
50
100
Eaton.com/bussmannseries
Eg
150
0.6
0.5
0.4
0.3
0.2
0.1
30 40 50
60
70
Ib
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
0.406
BUSSMANN SERIES FULL LINE CATALOG
100
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
• Watts loss provided at rated current.
• See accessories on page 6-21.
1mm = 0.0394” / 1” = 25.4mm
6-8
200
Power losses
K
0.5
300
UL
High speed fuses
North American
6
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
Virtual Pre-Arcing Time In Seconds
2
101
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
10–3
6
4
FWA-200A
FWA-250A
FWA-300A
FWA-350A
FWA-400A
2
–4
10
2
102
4
6 8
2
4
6
103
Prospective Current In Amps RMS
8
104
High speed
fuses
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
4
6
102
2
103
4
6
2
104
4
6
2
105
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785310
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-9
High speed fuses
6
North American
FWX 250V: 35-2500A
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.
50kA@250Vdc (35-800A)
Agency information: CE, UL Recognized JFHR2.E56412
and CSA Component Acceptance file Class 1422-30, (53787)
on 35-800A fuses (50kA IR @250Vdc).
Electrical characteristics
Total clearing 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
1)
0.5
Catalog numbers
0.15
Fig. 1:
35-800A
D
2.59
2.44
2.94
3.03
—
1.50
75
125
200
250
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
—
—
H
0.13
0.19
0.25
0.25
—
—
J
0.52
0.47
0.75
0.78
—
—
300
Tapped
thread
depth
—
—
—
—
3
⁄8”-24 x 1⁄2”
3
⁄8”--24 x 1⁄2”
Fig. 3:
1500-2500A
A
A
A D E C
C
B
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
F
G
H
Data Sheet: 720005
6-10
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
800
600
500
400
1)
300
200
50
1.0
Kp
0.8
100
2)
150
200
Eg
1) 35-800A Range
2) 1000-2500A Range
250
0.6
0.5
0.4
0.3
0.2
0.1
30 40 50
60
70
Ib
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 6-21.
Features and benefits
• Excellent DC performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
B
UL
103
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
• Watts loss provided at rated current.
D
B
Eg
1) 35-800A Range
2) 1000-2500A Range
Fig. 2:
1000-1200A
J
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
2)
0.3
0.2
Dimensions - in
Amp
range
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
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 .
1.4
1.2
•
•
•
•
Typical applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
High speed fuses
6
North American
FWX 35-800A: 250V
FWX 1000-2500A(H): 250V
Time-current curve
Time-current curve
104
6
4
104
2
103
FWX-200A
FWX-350A
FXW-400A
FWX-500A
FWX-600A
FWX-800A
102
2
FWX-1000AH
FWX-1200AH
FWX-1500AH
FWX-1600AH
FWX-2000AH
FWX-2500AH
2
10
101
6
4
2
100
Virtual Pre-Arcing Time In Seconds
Virtual Pre-arcing Time In Seconds
103
6
4
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
101
6
4
2
0
10
6
4
2
10–1
6
4
2
10–2
6
4
Peak let-through curve
2
105
B
10–3
6
4
FWX-800A
FWX-600A
FWX-400A
FWX-300A
FWX-200A
2
Peak Let-Through Current
103
4
6
8
2
4
6
104
Prospective Current In Amps RMS
8
105
High speed
fuses
104
2
10–4
Peak let-through curve
105
6
FWX-2500AH
FWX-150A
FWX-100A
FWX-70A
FWX-60A
FWX-45A
FWX-35A
A
102
102
4
103
104
Prospective Short-Circuit Current Symmetrical RMS
Peak Let-Through Current
10
3
105
FWX-2000AH
FWX-1600AH
FWX-1500AH
FWX-1200AH
2
FWX-1000AH
104
6
4
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
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-11
High speed fuses
6
North American
FWH 500V: 35-1600A
This curve gives the peak
arc voltage, UL, which
may appear across the
fuse during its operation
as a function of theapplied
working voltage, Eg, (rms)
at a power
factor of 15%.
Specifications
Description: North American style
stud-mount fuses.
Dimensions: See dimensions
illustration.
Ratings:
Volts: — 500Vac/dc (35-800A only)
Amps: — 35-1600A
IR: — 200kA Sym.
— 50kA @ 500Vdc (35-800A)
Agency information: CE, UL Recognized JFHR2.E91958
FWH-_B (35-200A, 1000-1200A), JFHR2.E56412
FWH-_A (225-600A), CSA Component Acceptance Class
1422-30, File 53787 (35-1600A).
Electrical characteristics
Total clearing 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).
Amp
Range
35-60
70-100
125-200
225-400
450-600
700-800
1000-1200
1400-1600
Dimensions - in
Fig.
1
1
1
1
1
1
1
2
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
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-1200A
C
1.593
1.736
1.836
2.090
2.090
2.090
3.219
1.5
1.0
0.5
0.3
0.2
Catalog numbers
2)
250
400
1) 35-800A Range
2) 1000-1600A Range
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
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
Eg
500
H
0.125
0.125
0.188
0.250
0.250
0.380
0.438
J
0.518
0.375
0.406
0.750
0.780
1.300
1.120
H
G F
0.125
1)
0.15
100
D
2.541
2.853
2.892
3.440
3.530
4.970
5.465
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.
B
J
0.5
10.219
0.625
3.219
3.5
BUSSMANN SERIES FULL LINE CATALOG
103
800
600
2)
500
400
300
100
1.0
Kp
0.8
1007—July 2015
Eaton.com/bussmannseries
1)
200
300
400
Eg
500
1) 35-200 and 1000-1600A Range
2) 225-800A Range
0.6
0.5
0.4
0.3
0.2
0.1
30 40 50
60
70
Ib
80 90 100%
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 6-21.
Features and benefits
• Excellent DC performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
Data Sheet: 720007
6-12
1.2
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
0.75
4.25
6.219
8.969
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
UL
1.6
Power losses
K
A
D
E
C
Fig. 2: 1400-1600A
2.0
Arc voltage
•
•
•
•
Typical applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
High speed fuses
6
North American
FWH 35-200A(B) and 900-1600A(A): 500V
Time-current curve
FWH 250-800A: 500V
Time-current curve
103
104
6
4
2
103
6
4
102
FWH-300A
FWH-400A
FWH-500A
FWH-600A
FWH-800A
2
102
6
4
101
6
4
Virtual Pre-Arcing Time In Seconds
Virtual Pre-Arcing Time In Seconds
101
FWH-900A
FWH-1000A
FWH-1200A
FWH-1400A
FWH-1600A
2
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
100
10–1
10–2
2
10–3
6
4
10–3
2
10
–4
2
4
6
8
2
4
6 8
2
103
Prospective Current In Amps RMS
102
4
6
8
104
10–4
102
105
High speed
fuses
Peak let-through curve
103
104
Prospective Current In Amps RMS
Peak let-through curve
105
105
B
FWH-1600A
FWH-1400A
6
FWH-1200A
FWH-1000A
4
2
104
Peak Let-Through Current
Peak Let-Through Current
104
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
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-13
High speed fuses
6
North American
KAC 600V: 1-1000A
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
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
Catalog numbers (amps)
Specifications
Description: North American style
stud-mount fuses. These 600V fuses are
supplied as replacements only. For new
installations, Eaton recommends the 700V
FWP fuse.
Dimensions: See dimensions illustrations.
Ratings:
Volts: — 600Vac
Amps: — 1-1000A
IR: — 200kA RMS Sym.
Agency information: CE, UL Recognized
JFHR2.E56413 on 1-600A only.
See accessories on page 6-21.
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
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
range
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
1mm = 0.0394˝ / 1˝ = 25.4mm
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
Fig. 1: 1-30 and 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
6-14
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
High speed fuses
North American
KBC 600V: 35-800A
Specifications
Description: North American style
stud-mount and flush-end fuses.
These 600V fuses are
supplied as replacements only.
For new installations, Eaton
recommends the 700V FWP fuse.
Dimensions: See dimensions
illustrations.
Ratings:
Volts: — 600Vac
Amps: — 35-800A
IR: — 200kA RMS Sym.
Agency information: CE, UL Recognized JFHR2.E56412 on
35-600A only.
Amp
range
35-60A
70-100A
110-200A
225-400A
450-600A
800A
Dimensions - in
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
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-60 and 110-600A
E
KBC-35
KBC-40
KBC-45
KBC-50
KBC-60
KBC-70
KBC-80
KBC-90
KBC-100
KBC-110
KBC-125
KBC-150
KBC-175
KBC-200
KBC-225
KBC-250
Catalog numbers (amps)
6
KBC-300
KBC-350
KBC-400
KBC-450
KBC-500
KBC-600
KBC-800
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
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
A
B
C
D
H
F
G
High speed
fuses
I
0.312
0.750
1.000
2.906
3.656
0.125
4.406
Fig. 2: 70-100A
Fig. 3: 800A
2.859
2.500
‹/•" - 24 ≈ ⁄/™"
0.750
3.750
4.000
4.000
0.750
3.750
Data Sheet: 720010
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-15
High speed fuses
6
North American
FWP 700V: 5-1200A
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: — 700Vac/dc
Amps: — 5-1200A
IR: — 200kA RMS Sym.
— 50kA @700Vdc
Agency information: CE, UL Recognized JFHR2.E91958
FWP-_B (5-100A, 700-1200A), JFHR2.E56412 FWP-_A
(125-600A) and CSA Component Acceptance file Class
1422-30, (53787) on 5-800A
1.5
Electrical characteristics
Total clearing 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).
Amp
range
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
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
C
1.855
2.750
2.594
2.840
2.840
2.840
2.844
1.0
0.5
0.3
0.2
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.
K
2)
1)
0.15
316
D
2.477
3.708
3.625
4.190
4.280
5.720
5.562
Power losses
E
2.477
3.312
3.563
3.500
3.530
4.190
5.062
Catalog numbers
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
3)
460
604
1) 35-100A Range
2) 125-600A Range
3) 700-1200A Range
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
700
H
0.063
0.125
0.125
0.250
0.250
0.380
0.250
Eg
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
J
5.966
7.594
A D E C
9.590 6.840
3.844
5.154
0.625
F
B
3.500
H
2.750
0.5
3.844
10.844
0.625
1.031
G
0.125
0.500
1.625
1.750
4.250
0.750
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
BUSSMANN SERIES FULL LINE CATALOG
UL
1.6
1.4
1.2
103
1)
8
6
5
4
3
300
400
2)
500
1007—July 2015
Eaton.com/bussmannseries
Eg
700
1.0
Kp
0.8
0.6
0.5
0.4
0.3
0.2
0.1
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
600
1) 125-600A range
2) 35-100 & 700-1200A range
• Watts loss provided at rated current. • See accessories on page 6-21.
Data Sheet: 720012
6-16
2
•
•
•
•
70
Ib
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
High speed fuses
6
North American
FWP 5-30A(B): 700V
FWP 35-100A(B) and 700-1200A(A): 700V
Time-current curve
Time-current curve
104
6
4
104
6
4
2
2
103
103
6
4
6
4
2
2
6
4
6
4
2
Virtual Pre-Arcing Time In Seconds
Virtual Pre-Arcing Time In Seconds
2
101
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
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
2
4
6 8
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
4
High speed
fuses
FWP-800A
4
FWP-700A
2
FWP-30B
FWP-25B
3
2
104
6
4
Peak Let-Through Current
Peak Let-Through Current
10
2
FWP-20B
FWP-15B
FWP-10B
FWP- 5B
2
10
6
4
6
4
2
3
10
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
2
10
2
4
6
102
2
103
4
6
2
104
4
2
6
105
Prospective Short-Circuit Current
Data Sheet: 35785316
Data Sheet: 35785308
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-17
High speed fuses
6
North American
FWP 150-600A: 700V
Peak let-through curve
Time-current curve
10
3
105
B
102
FWP-150A
FWP-200A
FWP-300A
FWP-400A
FWP-600A
101
Virtual Pre-Arcing Time In Seconds
Peak Let-Through Current
104
FWP-600A
FWP-400A
FWP-300A
FWP-200A
FWP-150A
103
100
A
102
102
103
10–1
10–2
10–3
10–4
102
103
104
105
Prospective
RMS
ProspectiveCurrent
CurrentInInAmperes
Amps RMS
Data Sheet: 361
6-18
104
Prospective Short-Circuit Current Symmetrical RMS
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
105
High speed fuses
6
North American
FWJ 1000V: 35-2000A
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
illustration.
Ratings:
Volts: — 1000Vac/800Vdc
Amps: — 35-2000A
IR: — 25kA (35-200A)
— 100kA (250-2000A)
— 50kA @ 800Vdc
(35-200A, 450-600A)
Agency information: CE, UL
Recognized JFHR8.E91958 on
35-600A only.
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).
Dimensions - in
B
0.940
1.125
1.526
2.000
2.500
3.500
1mm = 0.0394” / 1” = 25.4mm
Fig. 1: 35-2000A
C
3.110
3.085
3.261
3.500
3.465
3.312
1.0
Catalog numbers
0.5
0.3
0.2
0.15
200
D
4.235
4.266
4.803
4.811
5.984
5.472
1200
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
K
500
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
800
G
0.750
1.000
1.000
1.500
2.000
2.750
A
D
E
C
H
0.125
0.188
0.250
0.250
0.375
0.500
Eg
1000
I
0.380
0.407
0.819
0.764
1.201
0.880
H
G F
B
J
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
• Watts loss provided at rated current.
• See accessories on page 6-21.
•
•
•
•
•
•
•
•
UL
800
400
Kp
200
30 40 50
600
60
Eg
1000 1400 1800
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
70
Ib
80 90 100%
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
High speed
fuses
Amp
range
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
1.5
1600
Power losses
Electrical characteristics
Total clearing I2t
2000
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
Data Sheet: 720027
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-19
High speed fuses
6
North American
FWJ 35-600A: 1000V
FWJ 800-2000A: 1000V
Time-current curve
10
Time-current Curve
104
4
6
4
2
2
103
103
6
4
102
Virtual Pre-Arcing Time In Seconds
2
101
6
4
Virtual Pre-Arcing Time In Seconds
FWJ-200A
FWJ-250A
FWJ-300A
FWJ-350A
FWJ-400A
FWJ-500A
FWJ-600A
6
4
2
100
6
4
101
6
4
2
10–3
FWJ-800A
FWJ-1000A
FWJ-1200A
FWJ-1400A
FWJ-1600A
FWJ-1800A
FWJ-2000A
6
4
2
100
6
4
2
10–1
10–2
6
4
2
10–1
2
2
6
4
2
2
102
6
4
6
4
6
4
2
FWJ-40A
FWJ-50A
FWJ-60A
FWJ-70A
FWJ-80A
FWJ-90A
FWJ-100A
FWJ-125A
FWJ-150A
FWJ-175A
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
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
5
10
6
4
Peak Let-Through Current
2
104
6
4
2
3
10
6
4
2
102
102
2
4
6
2
103
4
6
104
2
4
6
105
2
4
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785303
6-20
6
8
104
2
Prospective
Current
In Amperes
Prospective
Current
in AmpsRMS
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6
4
6
8
105
High speed fuses
6
North American fuse accessories
Fuse bases (blocks)
Modular style
Eaton offers a comprehensive line of fuse bases that provide
the user with design and manufacturing flexibility. Two
identical half bases make up a Bussmann series modular
fuse base. These “split” units can be panel mounted any
distance apart to accommodate any length fuse.
Stud Type (not sold in pairs)
The simpler design is the C5268 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
Connector type
BS style
Stud type
Connector type
High speed
fuses
Eaton 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 Eaton 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
C5268
Refer to page 9-41 for BH holders.
BUSSMANN SERIES FULL LINE CATALOG
1007—July 2015
Eaton.com/bussmannseries
6-21