High Speed Fuses
Ferrule — FWA 150V: 5-60A
FWA 5-30A (10 x 38mm)
35-60A (21 X 51mm)
Specifications
Description:
Ferrule style high
speed fuses.
Dimensions:
See dimensions
illustration.
Ratings:
Volts: — 150Vac/dc
Amps: — 5-60A
IR: — 100kA Sym.
Agency Information:
CE, UL Recognition
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
characteristics. For other
voltages, the clearing I
2
t is
found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).
1.5
K
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 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
correction factor, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.
Catalog Numbers
1.0
K
p
0.8
0.6
0.5
0.4
0.3
0.2
U
L
300
200
100
E
g
50
100
150
High Speed
Fuses
1.0
0.1
30 40 50
60
70
I
b
80 90 100%
0.5
0.3
0.2
0.15
22
1)
2)
Eg
Electrical Characteristics
I
2
t (A
2
Sec)
70
102
150
Catalog
Numbers
FWA-5A10F
FWA-10A10F
FWA-15A10F
FWA-20A10F
FWA-25A10F
FWA-30A10F
FWA-35A21F
FWA-40A21F
FWA-45A21F
FWA-50A21F
FWA-60A21F
Rated
Current
RMS-Amps
5
10
15
20
25
30
35
40
45
50
60
Clearing
at 150V
8
16
55
130
220
400
800
1000
1300
1600
2400
Watts
Loss
1
2.7
3.3
3.8
4.9
4.9
4.5
5.1
6
7.3
8.0
1) 5-30A Range
2) 35-60A Range
Size
Dimensions - in (mm)
Amp
Range
5-30
35-60
Dimensions
A
B
1.5 (38.1)
0.375 (9.5)
2.0 (50.8)
0.625 (15.9)
C
0.406 (10.3)
0.811 (20.6)
10 x 38mm
(
13
⁄
32
” x 1
1
⁄
2
”)
21 x 51mm
(
13
⁄
16
” x 2”)
Pre-arc
1.6
3.6
14
33
58
100
75
100
130
170
250
A
C
• Watts loss provided at rated current.
• See accessories on page 216.
Features and Benefits
• Excellent cycling capability and DC performance
• Low arc voltage and low energy let-through (I
2
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
197
High Speed Fuses
Ferrule — FWA 150V: 5-60A
FWA 5-30A: 150V (10 x 38mm)
Time-Current Curve
10
4
6
4
2
10
3
FWA 35-60A: 150V (21 x 51mm)
Time-Current Curve
10
4
6
4
2
10
3
6
4
2
10
2
6
4
Virtual Pre-Arcing Time In Seconds
Virtual Pre-Arcing Time In Seconds
2
10
1
6
4
2
10
0
6
4
2
10
2
6
4
2
10
1
6
4
2
10
0
FWA-35A21F
FWA-40A21F
FWA-45A21F
FWA-50A21F
FWA-60A21F
FWA-5A10F
FWA-10A10F
FWA-15A10F
FWA-20A10F
FWA-25A10F
FWA-30A10F
6
4
2
10
–1
6
4
2
10
–1
6
4
2
10
–2
6
4
2
10
–2
6
4
2
10
–3
6
4
2
10
–4
2
4
6
8
10
1
2
4
6
8
10
2
2
4
6
8
10
3
10
6
4
2
–3
6
4
2
10
–4
10
1
2
4
6
8
10
2
2
4
6
8
10
3
Prospective Current In Amps RMS
Prospective Current In Amps RMS
Peak Let-Through Curve
10
4
6
4
FWA-30A10F
FWA-25A10F
FWA-20A10F
FWA-15A10F
Peak Let-Through Curve
10
4
6
4
FWA-60A21F
FWA-50A21F
FWA-45A21F
FWA-40A21F
FWA-35A21F
2
10
3
6
4
2
10
3
Peak Let-Through Current
6
4
Peak Let-Through Current
2
2
10
FWA-12A10F
FWA-10A10F
FWA-5A10F
2
10
2
6
4
6
4
2
2
10
1
10
1
2
4
6
10
2
2
4
6
10
3
2
4
6
10
4
2
4
6
10
5
2
10
1
10
1
2
4
6
10
2
2
4
6
10
3
2
4
6
10
4
2
4
6
10
5
2
Prospective Short-Circuit Current Symmetrical RMS
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785317
Data Sheet: 35785305
198
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
MCU
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