Bussmann
Ferrule
FWP 660V/700V (IEC/U.L.) 1-50A
Electrical Characteristics Ordering Information Dimensions Curves
2 2
I t (A S)
Rated Carton
Current Clearing Watts Part Carton Weight Figure
Size RMS-Amps Pre-arc at 660V Loss Number Qty. (kg) Number BIF #
1 FWP-1A14F
2 FWP-2A14F
3 FWP-3A14F
4 FWP-4A14F
5 1.6 11 1.5 FWP-5A14F
6 FWP-6A14F
14 51mm 10 3.6 22 4 FWP-10A14F
10 0.225 Fig. 1 35785307
() 15 10 75 5.5 FWP-15A14F
20 26 180 6 FWP-20A14F
25 44 320 7 FWP-25A14F
30 58 450 9 FWP-30A14F
32 68 600 7.6 FWP-32A14F
40 84 750 8 FWP-40A14F
50 200 1800 9 FWP-50A14F
n Interrupting rating 200kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
n Watts loss provided at rated current.
n (700 Vdc/Interrupting rating 50kA) U.L. Recognition.
n CSA Component Acceptance: 5 - 30A.
R
Dimensions
Fig. 1: 1-50 Amp Range
50.8 14.3
(2.000") (0.563")
15.5
(0.610")
Dimension in mm.
1mm = 0.0394 1 = 25.4mm
Electrical Characteristics
2
Total Clearing I t Arc Voltage Power Losses
2
The total clearing I t at rated voltage and This curve gives the peak arc voltage, Watts loss at rated current is given in
at power factor of 15% are given in the U , which may appear across the fuse the electrical characteristics. The curve
L
electrical characteristics. For other volt- during its operation as a function of the allows the calculation of the power
2
ages, the clearing I t is found by multi- applied working voltage, E , (RMS) at a losses at load currents lower than the
g
plying by correction factor, K, given as power factor of 15%. rated current. The correction factor, K ,
p
a function of applied working voltage, is given as a function of the RMS load
E , (RMS). current, I , in % of the rated current .
g b
1.4 1.4
1.0
Kp
1.2 1.2 U
K 0.8
L
3
1.0 10
0.6
0.9 9
0.5
0.8 8
0.4
0.7 7
0.3
0.6 6
0.5 5
0.2
1)
0.4 4
2)
E
E
g
g
I
b
0.1
0.3 3
200 300 400 500 600 700
200 300 400 500 600 700 30 40 50 60 80 90 100%
70
1) 5-30 Amp Range
2) 32-50 Amp Range
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann
Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly
present comprehensive product data and provide technical information that will help the end user with design
applications. Bussmann reserves the right, without notice, to change design or construction of any products and
Form No.
to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without
Page 1 of 1
notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested
7-18-01 SB01191
by the user in all possible applications. BIF Doc #720025X-ON Electronics
Largest Supplier of Electrical and Electronic Components
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