high speed fuses for product data sheets, visit www .cooperb ussmann.com/pr oducts/da tasheet.asp 97 high speed fuses north american fwh 500v: 35-1600a fwh specifications description: north american style stud-mount fuses. dimensions: see dimensions illustration. ratings: volts: 500vac amps: 35-1600a ir: 200ka sym. 50ka @ 500vdc agency information: ce, ul recognition & csa component acceptance on 35-800a only (50ka ir@500vdc). ul recognition on 35-1200a only, csa component acceptance: 35-1600a. electrical characteristics total clearing i 2 t the total clearing i 2 t at rated voltage and at power factor of 15% are given in the electrical characteristics. for other volt- ages, the clearing i 2 t is found by multiplying by correction factor, k, given as a function of applied working voltage, e g , (rms). arc voltage this curve gives the peak arc voltage, u l , which may appear across the fuse during its operation as a function of the applied working voltage, e g , (rms) at a power factor of 15%. power losses watts loss at rated cur- rent is given in the elec- trical characteristics. the curve allows the calcula- tion of the power losses at load currents lower than the rated current. the correction factor, k p , is given as a function of the rms load current, ib, in % of the rated current. catalog numbers electrical characteristics rated i 2 t (a 2 sec) catalog current clearing watts numbers rms-amps pre-arc at 500v loss fwh-35b 35 34 150 8 fwh-40b 40 76 320 7.5 fwh-45b 45 105 450 7.5 fwh-50b 50 135 670 7.5 fwh-60b 60 210 900 9.9 fwh-70b 70 210 900 10.6 fwh-80b 80 305 1400 12.7 fwh-90b 90 360 1600 15 fwh-100b 100 475 2000 17 fwh-125b 125 800 3500 25 fwh-150b 150 1100 4600 30 fwh-175b 175 1450 6200 35 fwh-200b 200 1900 8500 40 fwh-225a 225 4600 23300 39 fwh-250a 250 6300 32200 41 fwh-275a 275 7900 40300 46 fwh-300a 300 9800 49800 51 fwh-325a 325 13700 63800 53 fwh-350a 350 14500 72900 58 fwh-400a 400 19200 96700 65 fwh-450a 450 24700 127000 74 FWH-500A 500 29200 149000 84 fwh-600a 600 41300 206000 108 fwh-700a 700 55000 298000 120 fwh-800a 800 76200 409000 129 fwh-1000a 1000 92000 450000 145 fwh-1200a 1200 122000 600000 180 fwh-1400a 1400 200000 1000000 210 fwh-1600a 1600 290000 1400000 230 ? watts loss provided at rated current. ? see accessories on page 106. features and benefits ? excellent dc performance ? low arc voltage and low energy let-through (i 2 t) ? low watts loss ? superior cycling capability 500 400 250 100 1.5 1.0 0.5 0.3 0.2 0.15 e g k 1) 2) u l 2.0 1.6 1.2 10 3 800 600 500 400 300 100 400 300 200 500 e g 2) 1) 1) 35-200 & 1000-1600a range 2) 225-800a range a e d c f j g b h 10.219 3.219 0.625 4.25 0.75 3.5 6.219 0.125 0.5 1.625 1.750 8.969 fig. 1: 35-1200a fig. 2: 1400-1600a dimensions (in) amp range fig. a b c d e f g h j 35-60 1 3.188 0.813 1.593 2.541 2.193 0.344 0.719 0.125 0.518 70-100 1 3.625 0.947 1.736 2.853 2.807 0.352 0.750 0.125 0.375 125-200 1 3.625 1.156 1.836 2.892 2.768 0.344 1.000 0.188 0.406 225-400 1 4.340 1.500 2.090 3.440 2.750 0.410 1.000 0.250 0.750 450-600 1 4.340 2.000 2.090 3.530 2.780 0.410 1.500 0.250 0.780 700-800 1 6.340 2.500 2.090 4.970 3.440 0.530 2.000 0.380 1.300 1000-1200 1 6.969 3.000 3.219 5.465 4.475 0.625 2.375 0.438 1.120 1400-1600 2 see drawing 1mm = 0.0394 / 1 = 25.4mm k p 1.0 0.8 0.4 0.5 0.6 0.3 0.2 0.1 30 40 50 60 70 80 90 100% i b 1) 35-800a range 2) 1000-1600a range typical applications ? dc common bus ? dc drives ? power converters/rectifiers ? reduced voltage starters
for product data sheets, visit www .cooperb ussmann.com/pr oducts/da tasheet.asp 98 high speed fuses north american fwh 500v: 35-1600a 2468 10 2 2 2468 2 10 3 2468 10 4 2 4 6 2 6 4 2 6 4 2 6 4 2 6 4 2 6 4 6 4 2 6 2 4 10 0 10 1 10 C1 10 C2 10 C3 10 C4 10 2 10 3 10 4 fwh-90b fwh-80b fwh-125b fwh-100b fwh-175b fwh-200b fwh-150b fwh-60b fwh-70b fwh-50b fwh-45b fwh-40b fwh-35b fwh-1200a fwh-1400a fwh-900a fwh-1000a fwh-1600a prospective current in amper es rms 10 C3 10 C2 10 C1 10 0 10 1 10 2 10 3 10 C4 fwh-350a fwh-400a FWH-500A fwh-600a fwh-800a prospective current in amperes rms virtual pre-arcing time in seconds 10 2 10 3 10 4 10 5 fwh 225-800a: 500v time-current curve fwh 35-200a(b) & 900-1600a(a): 500v time-current curve fwh-200b fwh-150b fwh-125b fwh-100b fwh-80b fwh-60b fwh-50b fwh-35b fwh-40b fwh-1000a fwh-1200a fwh-1400a fwh-1600a prospective short-circuit current symmetrical rms peak let-through current 2 4 2 6 6 4 2 6 4 246 246 246 2 10 2 10 3 10 4 10 5 10 2 10 3 10 4 10 5 fwh-800a fwh-600a FWH-500A fwh-400a fwh-300a fwh-250a 10 2 10 5 10 4 10 3 10 3 10 4 10 5 10 2 prospective short-circuit current symmetrical rms peak let-through current a b peak let-through curve peak let-through curve data sheet: 35785304 data sheet: 360
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