Bussmann®
Form No. FWP 700
Page 1 of 2
Data Sheet: 720012
FWP 700V 5-1200A ®
3-6-02 A02008
Electrical Characteristics Ordering Information Dimensions Curves
Rated I2t (A2Sec) Carton
Current Clearing Watts Part Carton Weight Figure
Type RMS-Amps Pre-arc at 700V Loss Number Qty. (lbs) Number BIF #
5 1.6 10 1.5 FWP-5B
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10 3.6 20 4 FWP-10B
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15 10 75 5.5 FWP-15B
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20 26 180 6 FWP-20B 10 2.25 35785316
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25 44 340 7 FWP-25B
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30 58 450 9 FWP-30B
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35 34 160 12 FWP-35B
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40 76 320 12 FWP-40B
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50 135 600 12 FWP-50B 5 1.21
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60 210 950 15.5 FWP-60B 35785308
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70 305 2000 18 FWP-70B
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80 360 2400 21 FWP-80B
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90 415 2700 25 FWP-90B 0.24
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100 540 3500 27 FWP-100B Fig. 1
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125 1800 7300 28 FWP-125A
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FWP 150 2900 11700 32 FWP-150A
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700V 175 4200 16700 35 FWP-175A 0.65
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200 5500 22000 43 FWP-200A
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225 7700 31300 45 FWP-225A 361
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250 10500 42500 48 FWP-250A
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300 17600 71200 58 FWP-300A 1 1.17
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350 23700 95600 65 FWP-350A
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400 31000 125000 78 FWP-400A
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450 36400 137000 94 FWP-450A
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500 45200 170000 107 FWP-500A 2.39
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600 66700 250000 122 FWP-600A
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700 54000 300000 125 FWP-700A
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800 78000 450000 140 FWP-800A 1.21
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900 91500 530000 150 FWP-900A Fig. 2 35785308
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1000 120000 600000 170 FWP-1000A 6.60
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1200 195000 1100000 190 FWP-1200A Fig. 3
nInterrupting rating 200kA RMS Symmetrical. 1 kg = 2.2 lbs 1 lb = 0.45 kg
nWatts loss provided at rated current.
n(700 Vdc/Interrupting rating 50kA) U.L. Recognition & CSA Component Acceptance on 5 through 100 & 700 through 800 amperes.
n(700 Vdc/Interrupting rating 10kA) U.L. Recognition & CSA Component Acceptance on 125 through 600 amperes.
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3-6-02 A02008
Bussmann®
Form No. FWP 700
Page 2 of 2
Data Sheet: 720012
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.
®
FWP 700V 5-1200A
AEDC
F
J
G
B
H
Fig. 1: 5-800 Amp Range
Order # Fig. A B C D E F G H J
FWP-5B-30B 1 2.870 0.563 1.855 2.477 2.477 0.250 0.405 0.063 0.250
FWP-35B-60B 1 4.375 0.813 2.750 3.708 3.312 0.344 0.725 0.125 0.542
FWP-70B-100B 1 4.406 0.947 2.594 3.625 3.563 0.344 0.750 0.125 0.375
FWP-125A-200A 1 5.090 1.500 2.840 4.190 3.500 0.410 1.000 0.250 0.750
FWP-225A-400A 1 5.090 2.000 2.840 4.280 3.530 0.410 1.500 0.250 0.780
FWP-450A-600A 1 7.090 2.500 2.840 5.720 4.190 0.530 2.000 0.380 1.300
FWP-700A-800A 1 6.630 2.000 2.844 5.562 5.062 0.625 1.500 0.250 0.875
FWP-900A-1000A 2 See Drawing
FWP-1200A 3 See Drawing
Dimension in inches.
1mm = 0.0394∑ 1∑ = 25.4mm
7.594
0.500
3.500
3.844
1.031
0.625
2.750
5.966
5.154
1.375
Fig. 2: 900-1000 Amp Range Fig. 3: 1200 Amp Range
10.844
3.844
0.625
4.250
0.750
3.500
6.840
0.125
0.500
1.625
1.750
9.590
Dimensions
700604460316
1.5
1.0
0.5
0.3
0.2
0.15 Eg
K
1) 3)
2)
UL
2
1.6
1.4
1.2
103
8
6
5
4
3400300 500 600 700
Eg
1)
2)
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
1) 125-600 Amp Range
2) 35-100 & 700-1200 Amp Range
1) 35-100 Amp Range
2) 125-600 Amp Range
3) 700-1200 Amp Range
Total Clearing I2t
The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I2t is found by multi-
plying 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 .
Electrical Characteristics
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