High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL): 1-50A,
striker optional
FWP (14 x 51mm)
Specifications
Description:
Ferrule style high
speed fuses with and without
indicating striker.
Dimensions:
See Dimensions
illustrations.
Ratings:
Volts: — 690Vac (IEC)
— 700Vac (UL)
FWP with
Amps: — 1-50A
striker option.
IR: — 200kA RMS Sym.
— 50kA @700Vdc
Agency Information:
CE, UL Recognition, CSA
Component Acceptance for versions without indicator only.
Electrical Characteristics
Total Clearing I
2
t
The total clearing I
2
t at
rated voltage and at power
factor of 15% are given
in the electrical
characteristics. For other
voltages, the clearing I
2
t is
found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).
1.4
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1)
2)
300
400
500
600
E
g
700
K
Arc Voltage
This curve gives the peak
1.4
1.2
arc voltage, UL, which may
3
10
appear across the fuse
9
8
during its operation as a
7
function of the applied
working voltage, Eg, (rms)
6
at a power factor of 15%.
5
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, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.
Catalog Numbers
4
3
200
300
400
500
600
E
g
700
U
L
1.0
K
p
0.8
0.6
0.5
0.4
0.3
0.2
0.1
I
b
0.3
200
1) 5-30A Range
2) 32-50A Range
Dimensions - mm (inches)
Without Striker
50.8
(2.000")
14.3
(0.563")
Catalog
Numbers
Size
Without Striker
FWP-1A14Fa
FWP-2A14Fa
FWP-2.5A14Fa
FWP-3A14Fa
FWP-4A14Fa
FWP-5A14Fa
14 x 51mm
FWP-10A14Fa (
9
⁄
16
" x 2")
FWP-15A14Fa
FWP-20A14Fa
FWP-25A14Fa
FWP-30A14Fa
FWP-32A14Fa
FWP-40A14Fa
FWP-50A14Fa
With Striker
FWP-10A14FI
FWP-15A14FI
FWP-20A14FI 14 x 51mm
FWP-25A14FI
(
9
⁄
16
” x 2”)
FWP-30A14FI
FWP-32A14FI
FWP-40A14FI
FWP-50A14FI
30 40 50 60 70 80 90 100%
Electrical Characteristics
Rated
I
2
t (A
2
Sec)
Current
Minimum
Clearing At
Watts
RMS-Amps
Melting
Rated Voltage Loss
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
—
—
—
—
—
1.5
4
5.5
6
7
9
7.6
8
9
4
5.5
6
7
9
7.6
8
9
15.5
(0.610")
With Striker
59 (2.323")
51 (2.00")
14.3
(0.563")
13 (0.511")
Features and Benefits
• Excellent cycling capability and dc performance
• Low arc voltage and low energy let-through (
I2
t)
• Low watts loss in a compact size
• Used with finger-safe holders/blocks
•
•
•
•
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
5 (0.197")
Data Sheets: E5781724 rev. B (without striker)
170K5342/43 (with striker)
202
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL): 1-50A,
striker optional
FWP 5-50A: 660V/700V (14x 51mm)
Time-Current Curve
10
4
6
4
2
10
3
6
4
2
10
2
6
4
Virtual Pre-Arcing Time In Seconds
2
10
1
FWP-25A14F
FWP-30A14F
FWP-32A14F
FWP-40A14F
FWP-50A14F
6
4
2
10
0
High Speed
Fuses
6
4
2
10
–1
FWP-5A14F
FWP-10A14F
FWP-15A14F
FWP-20A14F
6
4
2
10
–2
6
4
2
10
–3
6
4
2
10
–4
2
4
6
8
10
1
2
4
6
8
10
2
2
4
6
8
10
3
Prospective Current In Amperes RMS
Peak Let-Through Curve
10
4
6
4
FWP-50A14F
FWP-40A14F
FWP-32A14F
FWP-30A14F
FWP-25A14F
2
3
Peak Let-Through Current
10
6
4
2
10
2
6
4
FWP-20A14F
FWP-15A14F
FWP-10A14F
FWP-5A14F
2
10
1
10
1
2
4
6
10
2
2
4
6
10
3
2
4
6
10
4
2
4
6
10
5
2
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785307
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
203
51mcu
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