KAC-1 COOPER [Cooper Bussmann, Inc.], KAC-1 Datasheet - Page 9

• Manufacturer Part Number: KAC-1
• Description: High Speed Fuses
• Manufacturer: COOPER [Cooper Bussmann, Inc.]

FWX
Amp
Range
35-60
70-200
225-600
700-800
1000-1200
1500-2500
1mm = 0.0394” / 1” = 25.4mm
Specifications
Description: North American
style stud-mount and flush-end
fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Amps: — 35-2500A
Agency Information: CE, UL Recognized & CSA
Component Acceptance on 35-800A fuses (20kA IR
@250Vdc).
Electrical
Characteristics
Total Clearing I
The total clearing I
voltage and at power factor
of 15% are given in the
electrical characteristics.
For other voltages, the
clearing I
plying by correction factor,
K, given as a function of
applied working voltage, E g ,
(rms).
A
Dimensions (in)
Volts: — 250Vac
D
H
E
IR: — 200kA RMS Sym.
High Speed Fuses
North American — FWX 250V: 35-2500A
C
35-800A
Fig. 1:
G
F
2
B
t is found by multi-
Fig. A
1
1
1
1
2
3
J
3.19 0.81 1.59 2.59 2.25 0.34 0.63 0.13 0.52 —
3.13 1.22 1.59 2.44 2.19 0.34 1.00 0.19 0.47 —
3.84 1.50 1.59 2.94 2.25 0.41 1.00 0.25 0.75 —
3.84 2.00 1.59 3.03 2.28 0.41 1.50 0.25 0.78 —
2.59 3.00 1.50 —
2.59 3.50 1.50 1.50 —
2
t
B
2
t at rated
C
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
B
A
1000-1200A
D
Fig. 2:
1.5
1.0
0.5
0.3
0.2
0.15
E
—
75
K
1)
2)
F
—
—
125
C
1) 35-800A Range
2) 1000-2500A Range
G
—
—
B
A
200
H
—
—
1500-2500A
J
—
—
Fig. 3:
250
D
Tapped
Thread
Depth
3
3
⁄
⁄
8
8
”-24 x
”--24 x
E
300
g
C
1
⁄
2
1
⁄
”
2
”
• Watts loss provided at rated current.
• Excellent dc performance
• Low arc voltage and low
• Superior cycling capability
Catalog
Number
FWX-35A
FWX-40A
FWX-45A
FWX-50A
FWX-60A
FWX-70A
FWX-80A
FWX-90A
FWX-100A
FWX-125A
FWX-150A
FWX-175A
FWX-200A
FWX-225A
FWX-250A
FWX-275A
FWX-300A
FWX-350A
FWX-400A
FWX-450A
FWX-500A
FWX-600A
FWX-700A
FWX-800A
FWX-1000AH
FWX-1200AH
FWX-1500AH
FWX-1600AH
FWX-2000AH
FWX-2500AH
Arc Voltage
This curve gives the peak
arc voltage, U L , which may
appear across the fuse dur-
ing its operation as a func-
tion of the applied working
voltage, E g , (rms) at a
power factor of 15%.
Power Losses
Catalog Numbers
Features and Benefits
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, K p , is
given as a function of the
RMS load current, I b , in %
of the rated current .
energy let-through (I
RMS-Amps
Current
Rated
1000
1200
1500
1600
2000
2500
100
125
150
175
200
225
250
275
300
350
400
450
500
600
700
800
35
40
45
50
60
70
80
90
2
Electrical Characteristics
t)
• See accessories on page 106.
Pre-arc
120000
160000
320000
670000
10600
14500
22100
28000
41100
48800
59000
44000
92000
1130
1620
2170
2790
3210
3960
4720
6000
I
100
140
330
430
570
740
2
t (A
50
60
80
1.4
1.2
10
800
600
500
400
300
200
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.1
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
3
Typical Applications
2
50
30 40 50
Sec)
K
p
U
1)
1200000
2300000
4700000
Clearing
at 250V
L
101000
128000
188000
190000
230000
360000
750000
880000
100
12000
14700
18100
21600
27300
48600
66100
1) 35-800A Range
2) 1000-2500A Range
1400
1850
2450
3150
4850
6950
9300
230
310
390
520
740
2)
60
150
100
103
140
140
151
163
Watts
70
Loss
10.0
12.5
15.7
18.5
22
24
27
31
32
39
44
49
54
62
72
84
4.2
5.2
5.7
6.0
8.1
7.2
8.1
9.0
80 90 100%
200
E
I
g
b
250
95