Bussmann
Ferrule
FWH 500V 1-30A
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 500V Loss Number Qty. (kg) Number BIF #
1 FWH-1A14F
2 FWH-2A14F
3 2.3 FWH-3A14F
4 FWH-4A14F
5 1.6 6.4 1.5 FWH-5A14F
14 51mm 6 1.6 6.4 1.5 FWH-6A14F
35785298
10 0.250 Fig. 1
() 10 3.6 13 4 FWH-10A14F
12 FWH-12A14F
15 10 40 5.5 FWH-15A14F
20 26 96 6 FWH-20A14F
25 49 191 7 FWH-25A14F
30 58 232 9 FWH-30A14F
n Interrupting rating 200kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg
n Watts loss provided at rated current.
n (500 Vdc/Interrupting rating 50kA) U.L. Recognition on 5 through 30 amperes only. Consult Bussmann for additional ratings.
n CSA Component Acceptance: 5 - 30A
R
Dimensions
Fig. 1: 1-30 Amp Range
50.8
14.3
(2.000") (0.563")
15.5
Dimension in mm.
(0.610")
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
1.5
2.0
1.0
K
U
L Kp
0.8
1.6
1.0
0.6
1.2
0.5
3
10
0.4
0.5
800
0.3
600
0.3
0.2
500
0.2
400
E
Eg
g
I
0.15
300 b
0.1
100 250 400 500 100 200 300 400 500
30 40 50 60 80 90 100%
70
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
to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without
notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested
by the user in all possible applications.
Form No.
Page 1 of 1
SB01191 BIF Doc #720008
7-18-01