Bussmann
FWJ 1000V 35-2000A
Electrical Characteristics Ordering Information Dimensions Curves
2 2
I t (A Sec)
Rated Carton
Current Clearing Watts Part Carton Weight Figure
Type RMS-Amps Pre-arc at 1000V Loss Number Qty. (lbs) Number BIF #
35 210 2000 7 FWJ-35A
__________________________________________________________________________
40 300 2500 8 FWJ-40A
__________________________________________________________________________
50 470 3500 10 FWJ-50A
__________________________________________________________________________
60 670 5000 11 FWJ-60A
__________________________________________________________________________
10 4.18
70 1100 6900 12 FWJ-70A
__________________________________________________________________________
80 1550 9700 13 FWJ-80A
__________________________________________________________________________
90 1900 12000 14 FWJ-90A
__________________________________________________________________________
100 2800 17500 15 FWJ-100A 35785303
_________________________________________________________________________________________________
125 4800 35000 16 FWJ-125A
__________________________________________________________________________
150 6300 45000 25 FWJ-150A
__________________________________________________________________________
4.40
175 7500 65000 30 FWJ-175A
__________________________________________________________________________
FWJ 200 11700 80000 32 FWJ-200A
__________________________________________________________________________ ___________
1000V 250 16000 112000 50 FWJ-250A Fig. 1
__________________________________________________________________________
300 23500 164000 56 FWJ-300A
__________________________________________________________________________
350 33000 231000 62 FWJ-350A
__________________________________________________________________________
4.84
400 47000 330000 67 FWJ-400A
__________________________________________________________________________
500 39500 329000 95 FWJ-500A 1
__________________________________________________________________________
600 61000 520000 105 FWJ-600A
__________________________________________________________________________ ___________
800 87000 500000 182 FWJ-800A
__________________________________________________________________________
1000 190000 1100000 206 FWJ-1000A
__________________________________________________________________________
1200 370000 2100000 240 FWJ-1200A
__________________________________________________________________________
1400 470000 2700000 248 FWJ-1400A 5.28 35785309
__________________________________________________________________________
1600 700000 4000000 267 FWJ-1600A
__________________________________________________________________________
1800 925000 5300000 239 FWJ-1800A
__________________________________________________________________________
2000 1330000 7600000 244 FWJ-2000A
U.L. Recognition on 35 through 600 amperes only. 1 kg = 2.2 lbs 1 lb = 0.45 kg
n Interrupting rating 25kA for 35 through 200 amperes.
n Interrupting rating 100kA for 250 through 2000 amperes.
n Watts loss provided at rated current.
n (800 Vdc/Interrupting rating 50kA) U.L. Recognition on 35-200 and 450-600 amperes.
Form No. FWJ 1000
Page 1 of 2
7-11-01 SB01191
BIF Doc #720027
Bussmann
FWJ 1000V 35-2000A
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 1.0
2000
Kp
K
0.8
U
L
1.0
0.6
1600
0.5
0.4
1200
0.5
0.3
800
0.2
0.3
0.2
400
Eg I
E b
g 0.1
0.15
200 500 800 1000 30 40 50 60 70 80 90 100%
200 600 1000 1400 1800
Dimensions
Fig. 1: 35-2000 Amp Range
A
D
E
C H
G F B
J
Order # Fig. A B C D E F G H J
FWJ-35A-60A 1 5.000 0.940 3.110 4.235 4.180 0.352 0.750 0.125 0.380
FWJ-70A-100A 1 4.932 1.125 3.085 4.266 4.156 0.352 1.000 0.188 0.407
FWJ-125A-200A 1 5.685 1.526 3.261 4.803 4.055 0.445 1.000 0.250 0.819
FWJ-250A-400A 1 5.768 2.000 3.500 4.811 4.150 0.433 1.500 0.250 0.764
FWJ-500A-600A 1 7.201 2.500 3.465 5.984 4.706 0.562 2.000 0.375 1.201
FWJ-800A-2000A 1 6.811 3.500 3.312 5.472 4.962 0.625 2.750 0.500 0.880
Dimension in inches.
1mm = 0.0394 1 = 25.4mm
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. FWJ 1000
Page 2 of 2
BIF Doc #720027
7-11-01 SB01191