FWA-50A21F Datasheet, PDF (1/2 Pages) Cooper Bussmann, Inc. – Ferrule style high speed fuses.

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 I²t
The total clearing I²t at
1.5
K
rated voltage and at power 1.0
factor of 15% are given in
the electrical
characteristics. For other 0.5 ¹⁾
voltages, the clearing I²t is
found by multiplying by 0.3
correction factor, K, given 0.2 ²⁾
as a function of applied
working
voltage,
Eg,
(rms).
0.15
22
70 102
1) 5-30A Range
2) 35-60A Range
Eg
150
Dimensions - in (mm)
Amp
Dimensions
Range
A
B
5-30
1.5 (38.1) 0.375 (9.5)
35-60
2.0 (50.8) 0.625 (15.9)
C
0.406 (10.3)
0.811 (20.6)
A
C
B
Arc Voltage
This curve gives the peak
U_L
arc voltage, UL, which
may appear across the
300
fuse during its operation
as a function of the
200
applied working voltage,
Eg, (rms) at a power factor 100
of 15%.
E_g
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
correction factor, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.
1.0
0.8
Kp
0.6
0.5
0.4
0.3
0.2
0.1
I_b
30 40 50 60 70 80 90 100%
Catalog Numbers
Electrical Characteristics
I²t (A² Sec)
Rated
Catalog
Current
Clearing
Numbers
Size
RMS-Amps Pre-arc
at 150V
FWA-5A10F
5
1.6
8
FWA-10A10F
10
3.6
16
FWA-15A10F 10 x 38mm
15
14
55
FWA-20A10F (¹³â„32” x 1¹â„2”)
20
33
130
FWA-25A10F
25
58
220
FWA-30A10F
30
100
400
FWA-35A21F
35
75
800
FWA-40A21F
FWA-45A21F
FWA-50A21F
21 x 51mm
(¹³â„16” x 2”)
40
45
50
100
1000
130
1300
170
1600
FWA-60A21F
60
250
2400
• 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 (I²t)
• Low watts loss in a compact size
• Used with finger-safe holders/blocks
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
Watts
Loss
1
2.7
3.3
3.8
4.9
4.9
4.5
5.1
6
7.3
8.0
Data Sheet: 720003
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
197