For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
204
Ferrule — FWP 690V/700V (IEC/UL):
20-100A, striker optional
High Speed Fuses
Dimensions - mm (inches)
66 (2.598")
58 (2.283")
16 (0.630"
22.2 (0.874")
5
(0.197")
FWP (22 x 58mm)
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
Electrical Characteristics
Total Clearing I2t
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).
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
Electrical Characteristics
Rated I2t (A2Sec)
Catalog Current Minimum Clearing At Watts
Numbers Size RMS-Amps Melting Rated Voltage Loss
Without Striker
FWP-20A22Fa 22 x 58mm 20 19.0 260 5
FWP-25A22Fa (7⁄8" x 29⁄32") 25 34.0 410 6
FWP-32A22Fa 32 53.5 605 8
FWP-40A22Fa 40 68 750 9
FWP-50A22Fa 50 135 1600 9.5
FWP-63A22Fa 63 280 3080 11
FWP-80A22Fa 80 600 6600 13.5
FWP-100A22Fa 100* 1100 12500 16
With Striker
FWP-20A22FI 20 19.0 260 5
FWP-25A22FI 25 34.0 410 6
FWP-32A22FI 22 x 58mm 32 53.5 605 8
FWP-40A22FI (7⁄8" x 29⁄32") 40 68 750 9
FWP-50A22FI 50 135 1600 9.5
FWP-63A22FI 63 280 3080 11
FWP-80A22FI 80 600 6600 13.5
FWP-100A22FI 100* 1100 12500 16
*IEC/UL Voltage rating 600/700
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
K
1.4
1.2
1.0
0.6
0.8
0.7
0.9
0.5
0.4
0.3
200 300 400 500 600 700
Eg
UL
1.4
1.2
103
6
8
7
9
5
4
3
200 300 400 500 600 700
Eg
Kp
1.0
0.8
0.4
0.5
0.6
0.3
0.2
0.1
30 40 50 60 70 80 90 100
%
Ib
Data Sheets: E5781723 rev. B (without striker) 170K5344/45 (with striker)
58.0
(2.283")
15.0
(0.591")
22.2
(0.875")
With Striker
Without Striker
FWP with
striker
option.
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp 205
Ferrule — FWP 690V/700V (IEC/UL): 20-100A,
striker optional
High Speed Fuses
High Speed
Fuses
FWP 20-100A:660V/700V (22 x 58mm)
Time-Current Curve
Data Sheet: 35785291
10122468 2
1022468
103
2
4
6
2
6
4
2
6
4
2
6
4
2
6
4
2
6
4
6
4
2
6
2
4
101
100
10–1
10–2
10–3
10–4
102
103
104
Prospective Current In Amperes RMS
Virtual Pre-Arcing Time In Seconds
FWP-20A22F
FWP-25A22F
FWP-32A22F
FWP-40A22F
FWP-50A22F
FWP-63A22F
FWP-80A22F
FWP-100A22F
104
Prospective Short-Circuit Current Symmetrical RMS
Peak Let-Through Current
2
6
4
2
6
4
246 246 246
102
103
102103104105
FWP-20A22F
FWP-25A22F
FWP-32A22F
FWP-40A22F
FWP-50A22F
FWP-63A22F
FWP-80A22F
FWP-100A22F
2
Peak Let-Through Curve
