KAC-1 COOPER [Cooper Bussmann, Inc.], KAC-1 Datasheet - Page 5

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

Dimensions (in)
Catalog Number
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
1mm = 0.0394∑ / 1∑ = 25.4mm
Fig. 1: 1000-3000A
FWA
1.875
Specifications
Description: North American
style flush-end high speed fuses.
Dimensions: See Dimensions
illustrations.
Ratings:
Amps: — 1000-4000A
Agency Information: CE, UL Recognized on 1000-2000A
fuses
Electrical Characteristics
Total Clearing I
The total clearing I
rated voltage and at power
factor of 15% are given in
the electrical characteris-
tics. For other voltages, the
clearing I
multiplying by correction
factor, K, given as a func-
tion of applied working
voltage, E g , (rms).
Volts: — 130Vac
B
High Speed Fuses
North American — FWA 130V: 1000-4000A
IR: — 200kA RMS Sym.
— 50kA @130Vdc
2
t is found by
2
t
2
t at
Fig. B
1
1
2
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
2.0
3.0
3.5
C
0.15
1.5
1.0
0.5
0.3
0.2
C
1.0
1.5
1.5
1.875
26
B
K
D
—
—
1.5
Fig. 2: 4000A
Thread Depth
Tapped
Tapped
Tapped
65
3
1
1
⁄
⁄
⁄
8
2
2
”-24 x
”-20 x
”-20 x
D
104
1
1
1
⁄
⁄
⁄
2
2
2
”
”
”
130
E
g
C
Catalog
Numbers
FWA-1000AH
FWA-1200AH
FWA-1500AH
FWA-2000AH
FWA-2500AH
FWA-3000AH
FWA-4000AH
• 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
Arc Voltage
This curve gives the peak
arc voltage, U L , which
may appear across the
fuse during its operation
as a function of the
applied working voltage,
E g , (rms) at a power fac-
tor 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
Rated Current
RMS-Amps
1000
1200
1500
2000
2500
3000
4000
Electrical Characteristics
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.1
300
200
100
Pre-arc
1500000
2100000
3400000
30 40 50
170000
270000
520000
860000
K
p
U
I
L
2
t (A
2
50
Sec)
Clearing
at 130V
1400000
2400000
4100000
5700000
9200000
60
460000
730000
70
2
t)
100
80 90 100%
Watts
Loss
108
130
150
257
60
70
78
E
I
b
g
150
91