FWA-350B

High Speed Fuses North American — FWA 150V: 70-1000A FWA Arc Voltage Specifications Description: North American style stud-mount fuses. Dimensions: See Dimensions illustrations. Ratings: Volts: — 150Vac/dc* Amps: — 70-1000A IR: — 100kA Sym. (70-400A) — 200kA Sym. (450-1000A) — 20kA @150Vdc (70-800A) — 100kA @ 80Vdc (70-1000A) *1000A rated @ 80Vdc. Agency Information: CE, UL Recognized JFHR2.E91958 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%. K The total clearing I t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K, given as a function of applied working voltage, Eg, (rms). 1.0 50 0.5 0.3 0.2 0.15 22 1) 2) Eg 70 102 150 1) 500-1000A Range 2) 70-400A Range Catalog Number FWA-70B FWA-80B FWA-100B FWA-125B FWA-150B FWA-200B FWA-250B FWA-300B FWA-350B FWA-400B FWA-500A FWA-600A FWA-700A FWA-800A FWA-1000A Rated Current RMS-Amps 70 80 100 125 150 200 250 300 350 400 500 600 700 800 1000 0.125 1.000 0.438 0.4 0.3 0.2 Ib 0.1 60 70 Electrical Characteristics I2t (A2 Sec) Clearing Pre-arc at 150V 470 4000 670 6000 1200 12000 1870 18000 2700 26000 4780 45000 7470 70000 10760 100000 15700 140000 20300 180000 39000 120000 46000 140000 75000 220000 92000 280000 170000 510000 80 90 100% Watts Loss 6.9 7.7 9.0 11.2 13.5 17.6 22.5 27.0 30.6 35.2 35.0 47.0 49.0 58.0 60.0 • • • • Features and Benefits Excellent DC performance Low arc voltage and low energy let-through (I2t) Low watts loss Superior cycling capability • • • • Typical Applications DC Common bus DC Drives Power converters/rectifiers Reduced voltage starters Fig. 2: 500-1000A 3.500 2.438 1.250 0.250 150 0.6 0.5 • Watts loss provided at rated current. • See accessories on page 141. 1.936 1.156 1.500 0.406 1mm = 0.0394” / 1” = 25.4mm Data Sheet: 720002 128 100 1.0 Kp 0.8 Catalog Numbers 2.656 2.188 1.000 100 30 40 50 Dimensions - in Fig. 1: 70-400A 0.750 0.312 200 Eg 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. 1.5 2 300 Power Losses Electrical Characteristics Total Clearing I2t UL For product data sheets, visit www.cooperbussmann.com/DatasheetsEle High Speed Fuses North American — FWA 150V: 70-1000A FWA 70-1000A: 150V Time-Current Curve 104 6 4 2 103 6 4 FWA-500A FWA-600A FWA-700A FWA-800A FWA-1000A 2 102 6 4 Virtual Pre-Arcing Time In Seconds 2 10 1 6 4 2 100 6 4 2 10–1 6 4 FWA-70A FWA-80A FWA-100A FWA-125A FWA-150A 2 10–2 6 4 2 –3 10 FWA-200A FWA-250A FWA-300A FWA-350A FWA-400A 6 4 2 2 102 4 6 8 2 4 6 103 Prospective Current In Amps RMS 8 High Speed Fuses 10–4 104 Peak Let-Through Curve 106 6 4 FWA-400A FWA-350A 2 FWA-300A FWA-250A 104 FWA-200A Peak Let-Through Current FWA-150A 6 FWA-100A 4 2 3 10 6 FWA-80A 4 FWA-70A 2 102 2 102 4 6 2 103 4 6 2 104 4 2 6 105 Prospective Short-Circuit Current Symmetrical RMS Data Sheet: 35785310 For product data sheets, visit www.cooperbussmann.com/DatasheetsEle 129