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FWP-20A22Fa Datasheet(PDF) 8 Page - Cooper Bussmann, Inc.

Part # FWP-20A22Fa
Description  Ferrule fuses
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Manufacturer  COOPER [Cooper Bussmann, Inc.]
Direct Link  http://www.cooperbussmann.com
Logo COOPER - Cooper Bussmann, Inc.

FWP-20A22Fa Datasheet(HTML) 8 Page - Cooper Bussmann, Inc.

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Ferrule — FWH 500V: 1-30A
Dimensions - mm (inches)
50.8
(2.000")
15.5
(0.610")
14.3
(0.563")
FWH (14 x 51mm)
Specifications
Description:
Ferrule style high
speed fuses.
Dimensions:
See dimensions
illustration.
Ratings:
Volts: — 500Vac/dc
Amps: — 1-30A
IR: — 200kA RMS Sym.
— 50kA @500Vdc
Agency Information:
CE, UL Recognition 1- 30A & 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 elec-
trical 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).
500
400
250
100
1.5
1.0
0.5
0.3
0.2
0.15
Eg
K
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 (A2 Sec)
Catalog
Current
Clearing
Watts
Numbers
Size
RMS-Amps
Pre-arc
at 500V
Loss
FWH-1A14F
1
FWH-2A14F
2
FWH-3A14F
3
2.3
FWH-4A14F
4
FWH-5A14F
5
1.6
6.4
1.5
FWH-6A14F
14 x 51mm
6
1.6
6.4
1.5
FWH-10A14F
(916” x 2”)
10
3.6
13
4
FWH-12A14F
12
FWH-15A14F
15
10
40
5.5
FWH-20A14F
20
26
96
6
FWH-25A14F
25
49
191
7
FWH-30A14F
30
58
232
9
• Watts loss provided at rated current.
• 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
UL
2.0
1.6
1.2
103
800
600
500
400
300
100
400
300
200
500
Eg
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: 720008
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
203
High Speed Fuses


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