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