KAC-1 COOPER [Cooper Bussmann, Inc.], KAC-1 Datasheet - Page 7

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

0.750
1.000
FWA
Dimensions (in)
Fig. 1: 70-400A
Fig. 2: 500-1000A
1mm = 0.0394 “ / 1” = 25.4mm
Specifications
Description: North American style
stud-mount fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Agency Information: CE, UL Recognized
Electrical Characteristics
Total Clearing I
The total clearing I
voltage and at power factor of
15% are given in the electri-
cal characteristics. For other
voltages, the clearing I
found by multiplying by cor-
rection factor, K, given as a
function of applied working
voltage, E g , (rms).
Amps: — 70-1000A
Volts: — 150Vac
0.312
High Speed Fuses
North American — FWA 150V: 70-1000A
IR: — 100kA Sym. (70-400A)
— 200kA Sym. (450-1000A)
— 20kA @150Vdc (70-800A)
— 100kA @ 80Vdc (70-400A)
0.406
2
t
3.500
2.438
1.250
2
t at rated
2.656
2.188
1.936
1.156
2
t is
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
1.5
1.0
0.5
0.3
0.2
0.15
22
K
1)
2)
0.438
1) 500-1000A Range
2) 70-400A Range
70
1.500
1.000
102
150
0.125
0.250
Eg
• Watts loss provided at rated current.
• See accessories on page 106.
• Excellent dc performance
• Low arc voltage and low energy let-through (I
• Low watts loss
• Superior cycling capability
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
Catalog
Number
FWA-70B
FWA-80B
FWA-100B
FWA-125B
FWA-150B
FWA-200B
FWA-250B
FWA-300B
FWA-350B
FWA-400B
FWA-500A
FWA-600A
FWA-700A
FWA-800A
FWA-1000A
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
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 correc-
tion factor, K p , is given as
a function of the RMS load
current, I b , in % of the
rated current.
Catalog Numbers
Features and Benefits
Typical Applications
RMS-Amps
Current
Rated
1000
100
125
150
200
250
300
350
400
500
600
700
800
70
80
Electrical Characteristics
Pre-arc
170000
10760
15700
20300
39000
46000
75000
92000
1200
1870
2700
4780
7470
300
200
100
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.1
470
670
I
2
30 40 50
t (A
K
U
p
2
L
Sec)
Clearing
at 150V
100000
140000
180000
120000
140000
220000
280000
510000
12000
18000
26000
45000
70000
4000
6000
50
60
2
t)
70
Watts
Loss
11.2
13.5
17.6
22.5
27.0
30.6
35.2
35.0
47.0
49.0
58.0
60.0
6.9
7.7
9.0
100
80 90 100%
E
I
b
g
150
93