High Speed
Fuses
High Speed Fuses
Ferrule FWA 150V: 5-60A
Arc Voltage
FWA 5-30A (10 x 38mm)
U
L
35-60A (21 X 51mm) This curve gives the peak
arc voltage, U , which
L
300
Specifications
may appear across the
Description: Ferrule style high
fuse during its operation
speed fuses.
200
as a function of the
Dimensions: See dimensions
applied working voltage,
illustration.
E , (rms) at a power factor 100
g
Ratings: of 15%.
E
g
Volts: 150Vac/dc
Power Losses
50 100 150
Amps: 5-60A
Watts loss at rated current 1.0
Kp
IR: 100kA Sym.
0.8
is given in the electrical
Agency Information: CE, UL Recognition
0.6
characteristics. The curve
0.5
allows the calculation of
Electrical Characteristics
0.4
the power losses at load
2 0.3
currents lower than the
Total Clearing I t
1.5 rated current. The
2
0.2
The total clearing I t at K
correction factor, K , is
p
rated voltage and at power
1.0
given as a function of the
factor of 15% are given in
I
RMS load current, I , in % b
0.1
b
the electrical
30 40 50 60 70 80 90 100%
1) of the rated current.
0.5
characteristics. For other
2
voltages, the clearing I t is
Catalog Numbers
found by multiplying by 0.3
2)
0.2
correction factor, K, given Electrical Characteristics
2 2
I t (A Sec)
as a function of applied
Eg
Rated
0.15
working voltage, E , (rms).
Catalog Current Clearing Watts
g
22 70 102 150
Numbers Size RMS-Amps Pre-arc at 150V Loss
1) 5-30A Range
FWA-5A10F 5 1.6 8 1
2) 35-60A Range
FWA-10A10F 10 3.6 16 2.7
FWA-15A10F 10 x 38mm 15 14 55 3.3
13 1
FWA-20A10F ( 32 x 1 2) 20 33 130 3.8
Dimensions - in (mm)
FWA-25A10F 25 58 220 4.9
Amp Dimensions
FWA-30A10F 30 100 400 4.9
Range A B C
FWA-35A21F 35 75 800 4.5
5-30 1.5 (38.1) 0.375 (9.5) 0.406 (10.3)
FWA-40A21F 40 100 1000 5.1
35-60 2.0 (50.8) 0.625 (15.9) 0.811 (20.6)
21 x 51mm
FWA-45A21F 45 130 1300 6
13
( 16 x 2)
FWA-50A21F 50 170 1600 7.3
FWA-60A21F 60 250 2400 8.0
Watts loss provided at rated current.
A C
See accessories on page 216.
Features and Benefits
Excellent cycling capability and DC performance
2
Low arc voltage and low energy let-through (I t)
Low watts loss in a compact size
Used with finger-safe holders/blocks
B
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
Data Sheet: 720003
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
197High Speed Fuses
Ferrule FWA 150V: 5-60A
FWA 5-30A: 150V (10 x 38mm) FWA 35-60A: 150V (21 x 51mm)
Time-Current Curve Time-Current Curve
4 4
10 10
6 6
4
4
2
2
3 3
10 10
6 6
4 4
2
2
2 2
10
10
FWA-35A21F
6 6
FWA-40A21F
4 4
FWA-45A21F
FWA-50A21F
2
2
FWA-60A21F
1 1
10
10
FWA-5A10F
6 6
FWA-10A10F
4 4
FWA-15A10F
FWA-20A10F 2
2
FWA-25A10F
0
0
10
10 FWA-30A10F
6
6
4 4
2
2
1 1
10
10
6
6
4
4
2
2
2 2
10 10
6
6
4
4
2 2
3 3
10
10
6
6
4
4
2 2
4
4
10
10
2 4 6 8 2 4 2 6 8 2 4 2 6 8 242 68 242 68
1 2 3 1 2 3
10 10 10 10 10 10
Prospective Current In Amps RMS Prospective Current In Amps RMS
Peak Let-Through Curve Peak Let-Through Curve
4
4
10
10
FWA-60A21F
6
6 FWA-50A21F
FWA-45A21F
4 4
FWA-40A21F
FWA-35A21F
FWA-30A10F
2 2
FWA-25A10F
FWA-20A10F
3 FWA-15A10F
3
10
10
6
6
4
4
2
2
FWA-12A10F
FWA-10A10F
2
10
FWA-5A10F
2
10
6
6
4
4
2
2
1
10
246 2 46 246 2 46 2
1 2 3 4 5 1
10 10 10 10 10
10
246 2 46 246 2 46 2
1 2 3 4 5
10 10 10 10 10
Prospective Short-Circuit Current Symmetrical RMS
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785317 Data Sheet: 35785305
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
198
Peak Let-Through Current
Virtual Pre-Arcing Time In Seconds
Peak Let-Through Current
Virtual Pre-Arcing Time In Seconds