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FWH-125B Datasheet(Hoja de datos) 9 Page - Cooper Bussmann, Inc.

No. de Pieza. FWH-125B
Descripción  High Speed Fuses
Descarga  20 Pages
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Fabricante  COOPER [Cooper Bussmann, Inc.]
Página de inicio  http://www.cooperbussmann.com
Logo 

 9 page
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High Speed Fuses
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
95
North American — FWX 250V: 35-2500A
FWX
Specifications
Description:
North American
style stud-mount and flush-end
fuses.
Dimensions:
See Dimensions
illustrations.
Ratings:
Volts: — 250Vac
Amps: — 35-2500A
IR: — 200kA RMS Sym.
Agency Information:
CE, UL Recognized & CSA
Component Acceptance on 35-800A fuses (20kA 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 multi-
plying by correction factor,
K, given as a function of
applied working voltage, Eg,
(rms).
Arc Voltage
This curve gives the peak
arc voltage, UL, which may
appear across the fuse dur-
ing its operation as a func-
tion 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 char
acteristics. 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
Number
RMS-Amps
Pre-arc
at 250V
Loss
FWX-35A
35
50
230
4.2
FWX-40A
40
60
310
5.2
FWX-45A
45
80
390
5.7
FWX-50A
50
100
520
6.0
FWX-60A
60
140
740
8.1
FWX-70A
70
330
1400
7.2
FWX-80A
80
430
1850
8.1
FWX-90A
90
570
2450
9.0
FWX-100A
100
740
3150
10.0
FWX-125A
125
1130
4850
12.5
FWX-150A
150
1620
6950
15.7
FWX-175A
175
2170
9300
18.5
FWX-200A
200
2790
12000
22
FWX-225A
225
3210
14700
24
FWX-250A
250
3960
18100
27
FWX-275A
275
4720
21600
31
FWX-300A
300
6000
27300
32
FWX-350A
350
10600
48600
39
FWX-400A
400
14500
66100
44
FWX-450A
450
22100
101000
49
FWX-500A
500
28000
128000
54
FWX-600A
600
41100
188000
62
FWX-700A
700
48800
190000
72
FWX-800A
800
59000
230000
84
FWX-1000AH
1000
44000
360000
100
FWX-1200AH
1200
92000
750000
103
FWX-1500AH
1500
120000
880000
140
FWX-1600AH
1600
160000
1200000
140
FWX-2000AH
2000
320000
2300000
151
FWX-2500AH
2500
670000
4700000
163
• Watts loss provided at rated current.
• See accessories on page 106.
Features and Benefits
• Excellent dc performance
• Low arc voltage and low
energy let-through (I2t)
• Superior cycling capability
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
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)
1) 35-800A Range
2) 1000-2500A Range
1) 35-800A Range
2) 1000-2500A Range
A
E
DC
F
J
G
B
H
A
B
C
A
B
C
D
Fig. 1:
35-800A
Fig. 2:
1000-1200A
Fig. 3:
1500-2500A
Dimensions (in)
Tapped
Amp
Thread
Range
Fig. A
B
C
D
E
F
G
H
J
Depth
35-60
1
3.19 0.81 1.59 2.59 2.25 0.34 0.63 0.13 0.52 —
70-200
1
3.13 1.22 1.59 2.44 2.19 0.34 1.00 0.19 0.47 —
225-600
1
3.84 1.50 1.59 2.94 2.25 0.41 1.00 0.25 0.75 —
700-800
1
3.84 2.00 1.59 3.03 2.28 0.41 1.50 0.25 0.78 —
1000-1200
2
2.59 3.00 1.50 —
3
8”-24 x 12
1500-2500
3
2.59 3.50 1.50 1.50 —
3
8”--24 x 12
1mm = 0.0394” / 1” = 25.4mm
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters




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