High Speed Fuses
North American — FWA 130V: 1000-4000A
Arc Voltage
FWA
UL
This curve gives the peak
arc voltage, U , which
may appear across the
fuse during its operation
as a function of the
Specifications
Description: North American
style flush-end high speed fuses.
L
300
200
100
Dimensions: See Dimensions
illustrations.
applied working voltage,
Ratings:
E , (rms) at a power fac-
g
Volts:— 130Vac
tor of 15%.
Eg
Amps:— 1000-4000A
IR:— 200kA RMS Sym.
— 50kA @130Vdc
Power Losses
50
100
150
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-
1.0
0.8
Kp
Agency Information: CE, UL Recognized on 1000-2000A
fuses
0.6
0.5
Electrical Characteristics
0.4
0.3
Total Clearing I2t
tion factor, K , is given as
a function of the RMS load
1.5
0.2
The total clearing I2t at
rated voltage and at power
factor of 15% are given in
the electrical characteris-
p
K
1.0
current, I , in % of the
b
Ib
rated current.
0.1
30 40 50 60
80 90 100%
70
tics. For other voltages, the
clearing I2t is found by
multiplying by correction
factor, K, given as a func-
tion of applied working
0.5
Catalog Numbers
Electrical Characteristics
I2t (A2 Sec)
0.3
0.2
Catalog
Rated Current
Clearing
at 130V
460000
730000
1400000
2400000
4100000
5700000
9200000
Watts
Loss
60
70
78
108
130
150
257
Numbers
RMS-Amps
Pre-arc
170000
270000
520000
860000
1500000
2100000
3400000
FWA-1000AH
FWA-1200AH
FWA-1500AH
FWA-2000AH
FWA-2500AH
FWA-3000AH
FWA-4000AH
1000
1200
1500
2000
2500
3000
4000
Eg
130
0.15
voltage, E , (rms).
g
26
65
104
• Watts loss provided at rated current.
• See accessories on page 106.
Dimensions (in)
Catalog Number
Fig.
1
1
B
C
D
—
—
Thread Depth
3 1
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
2.0 1.0
3.0 1.5
3.5 1.5 1.5 Tapped ⁄
Tapped ⁄
8
”-24 x ⁄
”-20 x ⁄
”-20 x ⁄
2
”
”
”
Features and Benefits
• Excellent dc performance
1
1
2
Tapped ⁄
2
1
1
2
2
2
2
• Low arc voltage and low energy let-through (I t)
• Low watts loss
1mm = 0.0394∑ / 1∑ = 25.4mm
Fig. 1: 1000-3000A
Fig. 2: 4000A
• Superior cycling capability
Typical Applications
• DC common bus
• DC drives
1.875
1.875
• Power converters/rectifiers
• Reduced voltage starters
D
C
B
B
C
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
91
COOPER [ COOPER BUSSMANN, INC. ]
