High Speed
Fuses
High Speed Fuses
Ferrule FWH 500V: 1-30A
2.0
Arc Voltage
FWH (14 x 51mm)
U
L
1.6
This curve gives the peak
Specifications
arc voltage, U , which may
1.2
L
Description: Ferrule style high
3
appear across the fuse
10
speed fuses.
during its operation as a
800
Dimensions: See dimensions
function of the applied
600
illustration.
working voltage, E , (rms)
g
500
Ratings:
at a power factor of 15%.
400
Volts: 500Vac/dc
E
g
Power Losses
300
Amps: 1-30A
100 200 300 400 500
Watts loss at rated current
IR: 200kA RMS Sym.
1.0
Kp
is given in the electrical
0.8
50kA @500Vdc
characteristics. The curve
0.6
Agency Information: CE, UL Recognition 1- 30A & CSA
0.5
allows the calculation of the
Component Acceptance: 5 - 30A.
0.4
power losses at load
currents lower than the 0.3
Electrical Characteristics
rated current. The correction
0.2
factor, K , is given as a
2
p
Total Clearing I t
function of the RMS load
2
The total clearing I t at rated I
1.5 b
current, I , in % of the rated
0.1
b
K
voltage and at power factor 30 40 50 60 70 80 90 100%
current.
1.0
of 15% are given in the elec-
Catalog Numbers
trical characteristics. For
Electrical Characteristics
other voltages, the clearing
2 2
Rated I t (A Sec)
0.5
2
I t is found by multiplying by
Catalog Current Clearing Watts
Numbers Size RMS-Amps Pre-arc at 500V Loss
correction factor, K, given as
FWH-1A14F 1
0.3
a function of applied working
FWH-2A14F 2
0.2
voltage, E , (rms).
FWH-3A14F 3 2.3
g
Eg FWH-4A14F 4
0.15
FWH-5A14F 5 1.6 6.4 1.5
100 250 400 500
FWH-6A14F 14 x 51mm 6 1.6 6.4 1.5
9
FWH-10A14F ( 16 x 2) 10 3.6 13 4
FWH-12A14F 12
FWH-15A14F 15 10 40 5.5
FWH-20A14F 20 26 96 6
FWH-25A14F 25 49 191 7
FWH-30A14F 30 58 232 9
Watts loss provided at rated current.
Dimensions - mm (inches)
See accessories on page 216.
50.8
14.3
Features and Benefits
(2.000") (0.563")
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
15.5
Typical Applications
(0.610")
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
Data Sheet: 720008
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
203High Speed Fuses
Ferrule FWH 500V: 1-30A
FWH 1-30A: 500V (14 x 51mm)
Time-Current Curve
4
10
6
4
2
3
10
6
4
2
2
10
FWH-5A14F
6
FWH-10A14F
4
FWH-15A14F
FWH-20A14F
2
FWH-25A14F
1
10
FWH-30A14F
6
4
2
0
10
6
4
2
1
10
6
4
2
2
10
6
4
2
3
10
6
4
2
4
10
24 68 242 68 22468
1 2 3
10 10 10
Prospective Current In Amps RMS
Peak Let-Through Curve
4
10
6
4
2
FWH-30A14F
FWH-25A14F
3
10
6
4
2
FWH-20A14F
FWH-15A14F
2
10
FWH-10A14F
FWH-5A14F
6
4
2
1
10
246 2 46 246 2 46 2
1 2 3 4 5
10 10 10 10 10
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785298
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
204
Peak Let-Through Current
Virtual Pre-Arcing Time In Seconds