High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL):
20-100A, Striker Optional
FWP (22 x 58mm)
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%.
Specifications
Description: Ferrule style high
speed fuses with and without
indicating striker.
Dimensions: See dimensions
illustration.
Ratings:
Volts: — 690Vac (IEC)
— 700Vac (UL)
Amps: — 20-100A
IR: — 200kA RMS Sym.
— 50kA @ 500Vdc
Agency Information: CE, UL Recognition
5
4
Eg
200
Power Losses
FWP with
striker
option.
K
300
400
500
600
700
1.0
Kp
0.8
0.6
0.5
High Speed
Fuses
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.
Total Clearing I2t
1.4
1.2
1.0
0.9
0.8
0.7
0.6
UL
3
Electrical Characteristics
The total clearing I2t at
rated voltage and at power
factor of 15% are given in
the electrical
characteristics. For other
voltages, the clearing I2t is
found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).
1.4
1.2
103
9
8
7
6
0.4
0.3
0.2
Ib
0.1
30 40 50
60
70
80 90 100%
Catalog Numbers
0.5
0.4
Eg
0.3
200
300
400
500
600
Dimensions - mm (inches)
Without Striker
58.0
(2.283")
22.2
(0.875")
15.0
(0.591")
Size
22 x 58mm
(7⁄8" x 29⁄32")
22 x 58mm
(7⁄8" x 29⁄32")
Watts
Loss
20
25
32
40
50
63
80
100*
19.0
34.0
53.5
68
135
280
600
1100
260
410
605
750
1600
3080
6600
12500
5
6
8
9
9.5
11
13.5
16
20
25
32
40
50
63
80
100*
19.0
34.0
53.5
68
135
280
600
1100
260
410
605
750
1600
3080
6600
12500
5
6
8
9
9.5
11
13.5
16
*IEC/UL Voltage rating 690/700
With Striker
66 (2.598")
58 (2.283")
5
(0.197")
700
Catalog
Numbers
Without Striker
FWP-20A22Fa
FWP-25A22Fa
FWP-32A22Fa
FWP-40A22Fa
FWP-50A22Fa
FWP-63A22Fa
FWP-80A22Fa
FWP-100A22Fa
With Striker
FWP-20A22FI
FWP-25A22FI
FWP-32A22FI
FWP-40A22FI
FWP-50A22FI
FWP-63A22FI
FWP-80A22FI
FWP-100A22FI
Electrical Characteristics
I2t (A2 Sec)
Minimum
Clearing At
Melting
Rated Voltage
Rated
Current
RMS-Amps
•
•
•
•
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
16 (0.630"
22.2 (0.874")
Data Sheet: 720026
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa
209
High Speed Fuses
Ferrule — FWP 690V/700V (IEC/UL): 20-100A,
Striker Optional
Without Striker
FWP 20-100A: 660V/700V (22 x 58mm)
Time-Current Curve
104
6
4
2
103
6
4
2
FWP-50A22F
FWP-63A22F
FWP-80A22F
FWP-100A22F
102
6
4
Virtual Pre-Arcing Time In Seconds
2
101
6
4
2
10
0
6
4
FWP-20A22F
FWP-25A22F
FWP-32A22F
FWP-40A22F
2
10–1
6
4
2
10–2
6
4
2
10–3
6
4
2
10–4
2
101
4
6
8
2
102
4
6
8
103
Prospective Current In Amps RMS
Peak Let-Through Curve
104
FWP-100A22F
FWP-80A22F
6
FWP-63A22F
Peak Let-Through Current
4
FWP-50A22F
2
103
6
FWP-40A22F
FWP-32A22F
4
FWP-25A22F
FWP-20A22F
2
102
102
2
4
6
103
2
4
6
104
2
4
6
105
2
Prospective Short-Circuit Current Symmetrical RMS
Data Sheet: 35785291
210
For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa