High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL): 1-50A,
Striker Optional
FWP (14 x 51mm)
Arc Voltage
Specifications
Description: Ferrule style high
speed fuses with and without
indicating striker.
Dimensions: See dimensions
illustrations.
Ratings:
Volts: — 690Vac (IEC)
— 700Vac (UL)
FWP with
— 800Vdc (5-50A)
striker option.
Amps: — 1-50A
IR: — 200kA RMS Sym.
— 50kA @800Vdc
Agency Information: CE, UL Recognition JFHR2.E91958,
CSA Component Acceptance file Class 1422-30, 1422-90
(53787) for versions without indicator only. Designed and
tested to IEC 60269: Part 4.
Electrical
Characteristics
Total Clearing I2t
1.4
1.2
1.0
0.9
0.8
0.7
0.6
The total clearing I2t at
rated voltage and at power
factor of 15% are given in
0.5
the electrical
1)
characteristics. For other 0.4
2)
voltages, the clearing I2t is
0.3
found by multiplying by
200
correction factor, K, given
as a function of applied working
voltage, Eg, (rms).
1.4
1.2
103
9
8
7
6
Power Losses
3
Catalog Numbers
300
400
500
1) 5-30A Range
2) 32-50A Range
600
Eg
700
Without Striker
50.8
(2.000")
14.3
(0.563")
15.5
(0.610")
With Striker
5 (0.197")
Size
51 (2.00")
13 (0.511")
•
•
•
•
4
200
1.0
Kp
0.8
300
400
500
600
Eg
700
0.6
0.5
0.4
0.3
0.2
Ib
0.1
30 40 50 60 70 80 90 100%
Electrical Characteristics
Rated
I2t (A2 Sec)
Current
Minimum
Clearing At
Watts
RMS-Amps
Melting
Rated Voltage Loss
14 x 51mm
(9⁄16" x 2")
14 x 51mm
(9⁄16” x 2”)
*Striker range is 600Vdc only
• Watts loss provided at rated current.
• See accessories on page 243.
59 (2.323")
14.3
(0.563")
Catalog
Numbers
Without Striker
FWP-1A14F
FWP-2A14F
FWP-2.5A14F
FWP-3A14F
FWP-4A14F
FWP-5A14F
FWP-10A14F
FWP-15A14F
FWP-20A14F
FWP-25A14F
FWP-30A14F
FWP-32A14F
FWP-40A14F
FWP-50A14F
With Striker*
FWP-10A14FI
FWP-15A14FI
FWP-20A14FI
FWP-25A14FI
FWP-30A14FI
FWP-32A14FI
FWP-40A14FI
FWP-50A14FI
UL
5
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
Dimensions - mm (in)
234
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%.
1
2
2.5
3
4
5
10
15
20
25
30
32
40
50
10
15
20
25
30
32
40
50
—
—
—
—
—
1.6
3.6
8.6
26.0
46.5
58
68
84
200
3.6
8.6
26.0
46.5
58
68
84
200
—
—
—
—
—
11.0
38.5
70
230
375
485
600
750
1800
38.5
70
230
375
485
600
750
1800
Features and Benefits
Excellent cycling capability and DC performance
Low arc voltage and low energy let-through (I2t)
Low watts loss in a compact size
Used with finger-safe holders/blocks
Data Sheet: 720025
For product data sheets, visit www.cooperbussmann.com/DatasheetsEle
—
—
—
—
—
1.5
4
5.5
6
7
9
7.6
8
9
4
5.5
6
7
9
7.6
8
9
High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL): 1-50A,
Striker Optional
Without Striker
FWP 5-50A: 660V/700V (14 x 51mm)
Time-Current Curve
104
6
4
2
103
6
4
2
Virtual Pre-Arcing Time In Seconds
102
FWP-25A14F
FWP-30A14F
FWP-32A14F
FWP-40A14F
FWP-50A14F
6
4
2
101
6
4
2
100
10–1
6
4
FWP-5A14F
FWP-10A14F
FWP-15A14F
FWP-20A14F
2
6
4
2
10–2
6
4
2
10–3
6
4
2
10–4
2
4
6
8
2
101
4
6
8
2
102
4
6
8
103
High Speed
Fuses
Prospective Current In Amps RMS
Peak Let-Through Curve
104
FWP-50A14F
FWP-40A14F
FWP-32A14F
FWP-30A14F
FWP-25A14F
6
4
2
Peak Let-Through Current
103
6
4
2
FWP-20A14F
FWP-15A14F
FWP-10A14F
FWP-5A14F
102
6
4
2
101
101
2
4
6
102
2
4
6
103
2
4
6
104
Prospective Short-Circuit Current Symmetrical RMS
2
4
6
105
2
Data Sheet: 35785307
For product data sheets, visit www.cooperbussmann.com/DatasheetsEle
235
Bussmann
®
Ferrule
FWP 660V/700V (IEC/U.L.)
Size
Electrical Characteristics
I2t (A2S)
Rated
Current
Clearing
RMS-Amps
Pre-arc
at 660V
1-50A
®
Ordering Information
1
—
—
2
—
—
3
—
—
4
—
—
5
1.6
11
6
—
—
14 ≈ 51mm
10
3.6
22
(·Ω¡§∑)
15
10
75
20
26
180
25
44
320
30
58
450
32
68
600
40
84
750
50
200
1800
n Interrupting rating 200kA RMS Symmetrical.
n Watts loss provided at rated current.
n (700 Vdc/Interrupting rating 50kA) U.L. Recognition.
n CSA Component Acceptance: 5 - 30A.
Watts
Loss
Part
Number
Carton
Qty.
Carton
Weight
(kg)
—
—
—
—
1.5
—
4
5.5
6
7
9
7.6
8
9
FWP-1A14F
FWP-2A14F
FWP-3A14F
FWP-4A14F
FWP-5A14F
FWP-6A14F
FWP-10A14F
FWP-15A14F
FWP-20A14F
FWP-25A14F
FWP-30A14F
FWP-32A14F
FWP-40A14F
FWP-50A14F
10
0.225
Dimensions
Curves
Figure
Number
BIF #
Fig. 1
35785307
1 kg = 2.2 lbs.
1 lb = 0.45 kg
R
Dimensions
Fig. 1: 1-50 Amp Range
50.8
(2.000")
14.3
(0.563")
15.5
(0.610")
Dimension in mm.
1mm = 0.0394∑
1∑ = 25.4mm
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,
E g , (RMS).
1.4
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.4
1.2
103
9
8
7
6
K
Power Losses
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 .
1.0
Kp
0.8
UL
0.6
0.5
0.4
0.3
5
1)
0.2
4
2)
0.3
200
Arc Voltage
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%.
Eg
Eg
3
300
400
500
600
700
200
300
400
500
600
700
0.1
30 40 50
Ib
60
70
80 90 100%
1) 5-30 Amp Range
2) 32-50 Amp Range
7-18-01
SB01191
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann
Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly
present comprehensive product data and provide technical information that will help the end user with design
applications. Bussmann reserves the right, without notice, to change design or construction of any products and
to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without
notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested
by the user in all possible applications.
Form No.
Page 1 of 1
BIF Doc #720025
BIF Document
Semiconductor Fuse
1-50A, 700 Volts
35785307
Size 14≈51
104
6
4
2
103
6
4
2
FWP-25A14F
FWP-30A14F
FWP-32A14F
FWP-40A14F
FWP-50A14F
2
10
Virtual Pre-Arcing Time In Seconds
6
4
2
101
6
4
2
100
6
4
FWP-5A14F
FWP-10A14F
FWP-15A14F
FWP-20A14F
2
10–1
6
4
2
10–2
6
4
2
10–3
6
4
2
10–4
2
4
6
8
101
2
4
6
8
102
2
4
6
8
103
Prospective Current In Amperes RMS
Pre-Arcing
Time-Current Characteristic Curves
FWP 1A14F-50A14F
1-17-01
SB00233
BUSSMANN
P.O. Box 14460
St. Louis, MO 63178-4460
U.S.A.
Phone: 636-394-2877
Fax:
800-544-2570
Int’l Fax: 636-527-1413
Approved:
NN
Rev. Date:
SEPT-97
BUSSMANN U.K.
Burton-on-the-Wolds
Leicestershire LE12 5TH
England
Phone: 44-1509-882737
Fax:
44-1509-882786
Page
Pub. Date:
BUSSMANN DENMARK
5 Literbuen
DK-2740 Skovlunde
Copenhagen, Denmark
Phone: 45-4485-0900
Fax:
45-4485-0901
Bussmann reserves the right without notice to change design and/or discontinue distribution of this product.
1 of 2
JAN-98
BIF Document
Semiconductor Fuse
1-50A, 700 Volts
357815307
Size 14≈51
104
FWP-50A14F
FWP-40A14F
FWP-32A14F
FWP-30A14F
FWP-25A14F
6
4
Peak Let-Through Current
2
103
6
4
2
FWP-20A14F
FWP-15A14F
FWP-10A14F
FWP-5A14F
2
10
6
4
2
101
101
2
4
6
102
2
4
6
103
2
4
6
104
2
4
6
105
2
Prospective Short-Circuit Current Symmetrical RMS
Peak Let-Through
Cut-Off Current Characteristic Curves
FWP 1A14F-50A14F
1-17-01
SB00233
Approved:
NN
Rev. Date:
SEPT-97
Page
Pub. Date:
2 of 2
JAN-98
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF document are by definition
uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann
reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to
change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.