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FWP-20A14Fa Datasheet(Hoja de datos) 4 Page - Cooper Bussmann, Inc.

No. de Pieza. FWP-20A14Fa
Descripción  Ferrule fuses
Descarga  21 Pages
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Fabricante  COOPER [Cooper Bussmann, Inc.]
Página de inicio  http://www.cooperbussmann.com
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 4 page
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Ferrule — FWX 250V (UL): 1-50A
FWX (14 x 51mm)
Specifications
Description:
Ferrule style high
speed fuses.
Dimensions:
See dimensions
illustration.
Ratings:
Volts: — 250Vac/dc
Amps: — 1-50A
IR: — 200kA RMS Sym.
— 50kA @ 250Vdc
Agency Information:
CE, UL Recognition 1-50A & CSA
Component Acceptance: 5-30A
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).
Dimensions - mm (inches)
50.8
(2.000")
15.5
(0.610")
14.3
(0.563")
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%.
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
Electrical Characteristics
Rated
I
2t (A2Sec)
Catalog
Current
Clearing
Watts
Number
Size
RMS-Amps
Pre-arc
at 250V
Loss
FWX-1A14F
1
FWX-2A14F
2
FWX-3A14F
3
FWX-4A14F
4
FWX-5A14F
14 x 51mm
5
1.6
13
1.3
FWX-10A14F
(916” x 2”)
10
3.6
24
3.4
FWX-15A14F
15
14
83
3.8
FWX-20A14F
20
33
200
4.6
FWX-25A14F
25
58
300
5.3
FWX-30A14F
30
100
500
5.9
FWX-50A14F
50
200
1800
5.7
• Watts loss provided at rated current.
• (250Vdc/Interrupting rating 50kA) UL Recognition & CSA Component Acceptance on 5
through 30A only. Consult Cooper Bussmann for additional ratings.
• See accessories on page 216.
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
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
1.5
1.0
0.5
0.3
0.2
0.15
75
125
300
200
250
Eg
K
1)
2)
UL
1.4
1.2
103
800
600
500
400
300
200
50
100
150
200
250
Eg
1)
2)
Kp
1.0
0.8
0.4
0.5
0.6
0.3
0.2
0.1
30 40 50
60
70
80 90 100%
I
b
Data Sheet: 720006
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
199
High Speed Fuses




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