High Speed Fuses Ferrule -- FWH 500V: 1-30A FWH (14 x 51mm) Specifications Description: Ferrule style high speed fuses. Dimensions: See dimensions illustration. Ratings: Volts: -- 500Vac/dc Amps: -- 1-30A IR: -- 200kA RMS Sym. -- 50kA @500Vdc Agency Information: CE, UL Recognition 1- 30A & CSA Component Acceptance: 5 - 30A. 2.0 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%. 1.6 Power Losses 300 100 Total Clearing I2t 1.5 K 1.0 UL 1.2 103 800 600 500 400 Eg 200 300 400 500 1.0 Kp 0.8 0.6 0.5 0.4 High Speed Fuses 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 The total clearing I2t 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). Arc Voltage 0.3 0.2 Ib 0.1 30 40 50 60 70 80 90 100% Catalog Numbers 0.5 0.3 0.2 0.15 100 Eg 250 400 Watts Loss -- -- 2.3 -- 1.5 1.5 4 -- 5.5 6 7 9 * Watts loss provided at rated current. * See accessories on page 216. Dimensions - mm (inches) 50.8 (2.000") 500 Catalog Numbers Size FWH-1A14F FWH-2A14F FWH-3A14F FWH-4A14F FWH-5A14F FWH-6A14F 14 x 51mm FWH-10A14F (916" x 2") FWH-12A14F FWH-15A14F FWH-20A14F FWH-25A14F FWH-30A14F Electrical Characteristics Rated I2t (A2 Sec) Current Clearing RMS-Amps Pre-arc at 500V 1 -- -- 2 -- -- 3 -- -- 4 -- -- 5 1.6 6.4 6 1.6 6.4 10 3.6 13 12 -- -- 15 10 40 20 26 96 25 49 191 30 58 232 14.3 (0.563") * * * * Features and Benefits Excellent cycling capability and DC performance Low arc voltage and low energy let-through (I2t) Low watts loss in a compact size Used with finger-safe holders/blocks * * * * Typical Applications DC common bus DC drives Power converters/rectifiers Reduced voltage starters 15.5 (0.610") Data Sheet: 720008 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 203 High Speed Fuses Ferrule -- FWH 500V: 1-30A FWH 1-30A: 500V (14 x 51mm) Time-Current Curve 104 6 4 2 103 6 4 2 Virtual Pre-Arcing Time In Seconds 102 6 4 FWH-5A14F FWH-10A14F FWH-15A14F FWH-20A14F FWH-25A14F FWH-30A14F 2 101 6 4 2 100 6 4 2 10-1 6 4 2 10-2 6 4 2 10-3 6 4 2 10-4 2 4 6 8 101 2 4 6 8 2 102 4 6 8 103 Prospective Current In Amps RMS Peak Let-Through Curve 104 6 4 2 Peak Let-Through Current 10 FWH-30A14F FWH-25A14F 3 6 4 2 FWH-20A14F FWH-15A14F FWH-10A14F FWH-5A14F 102 6 4 2 101 101 2 4 6 2 102 4 6 103 2 4 6 104 2 4 6 105 2 Prospective Short-Circuit Current Symmetrical RMS Data Sheet: 35785298 204 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa