®
Form No. FWX 250
Page 1 of 2
BIF Doc #720005
Bussmann®
FWX 250V 35-2500A
Electrical Characteristics Ordering Information Dimensions Curves
Rated I2t (A2Sec) Carton
Current Clearing Watts Part Carton Weight Figure
Type RMS-Amps Pre-arc at 250V Loss Number Qty. (lbs) Number BIF #
35 50 230 4.2 FWX-35A
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40 60 310 5.2 FWX-40A
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45 80 390 5.7 FWX-45A 5 1.40
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50 100 520 6.0 FWX-50A
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60 140 740 8.1 FWX-60A
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70 330 1400 7.2 FWX-70A
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80 430 1850 8.1 FWX-80A
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90 570 2450 9.0 FWX-90A
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100 740 3150 10.0 FWX-100A 0.32 359
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125 1130 4850 12.5 FWX-125A
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150 1620 6950 15.7 FWX-150A
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175 2170 9300 18.5 FWX-175A Fig. 1
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200 2790 12000 22 FWX-200A
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225 3210 14700 24 FWX-225A
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FWX 250 3960 18100 27 FWX-250A
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250V 275 4720 21600 31 FWX-275A
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300 6000 27300 32 FWX-300A
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350 10600 48600 39 FWX-350A 1 0.52
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400 14500 66100 44 FWX-400A
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450 22100 101000 49 FWX-450A
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500 28000 128000 54 FWX-500A
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600 41100 188000 62 FWX-600A
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700 48800 190000 72 FWX-700A 0.90
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800 59000 230000 84 FWX-800A
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1000 44000 360000 100 FWX-1000AH Fig. 2
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1200 92000 750000 103 FWX-1200AH
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1500 120000 880000 140 FWX-1500AH 35785299
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1600 160000 1200000 140 FWX-1600AH 2.86 Fig. 3
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2000 320000 2300000 151 FWX-2000AH
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2500 670000 4700000 163 FWX-2500AH
† U.L. Recognition on 35 through 800 amperes only. 1 kg = 2.2 l bs 1 lb = 0.45 kg
nInterrupting rating 200kA RMS Symmetrical.
nWatts loss provided at rated current.
n(250 Vdc/Interrupting rating 20kA) U.L. Recognition on 35 through 800 amperes only.
7-11-01 SB01191
†