High Speed Fuses Ferrule -- FWP 690V/700V (IEC/UL): 1-50A, Striker Optional FWP (14 x 51mm) Arc Voltage 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). 1.4 1.2 1.0 0.9 0.8 0.7 0.6 0.5 0.4 1.4 1.2 103 9 8 7 6 Power Losses 3 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 Total Clearing I2t 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 UL 5 4 Eg 200 300 400 500 600 700 1.0 Kp 0.8 0.6 0.5 High Speed Fuses Specifications Description: Ferrule style high speed fuses with and without indicating striker. Dimensions: See dimensions illustrations. Ratings: Volts: -- 690Vac (IEC) -- 700Vac (UL) FWP with -- 800Vdc (5-50A) striker option. Amps: -- 1-50A IR: -- 200kA RMS Sym. -- 50kA @800Vdc Agency Information: CE, UL Recognition, CSA Component Acceptance for versions without indicator only. 0.4 0.3 0.2 Ib 0.1 30 40 50 60 70 80 90 100% Catalog Numbers 1) 2) 0.3 200 Eg 300 400 500 600 700 1) 5-30A Range 2) 32-50A Range Dimensions - mm (inches) Without Striker 50.8 (2.000") 14.3 (0.563") 15.5 (0.610") With Striker 59 (2.323") 51 (2.00") 14.3 (0.563") 5 (0.197") Catalog Numbers Size Without Striker FWP-1A14Fa FWP-2A14Fa FWP-2.5A14Fa FWP-3A14Fa FWP-4A14Fa FWP-5A14Fa 14 x 51mm FWP-10A14Fa (916" x 2") FWP-15A14Fa FWP-20A14Fa FWP-25A14Fa FWP-30A14Fa FWP-32A14Fa FWP-40A14Fa FWP-50A14Fa With Striker FWP-10A14FI FWP-15A14FI FWP-20A14FI 14 x 51mm FWP-25A14FI (916" x 2") FWP-30A14FI FWP-32A14FI FWP-40A14FI FWP-50A14FI Current RMS-Amps Electrical Characteristics Rated I2t (A2 Sec) Minimum Clearing At Watts Melting Rated Voltage Loss 1 2 2.5 3 4 5 10 15 20 25 30 32 40 50 -- -- -- -- -- 1.6 3.6 8.6 26.0 46.5 58 68 84 200 -- -- -- -- -- 11.0 38.5 70 230 375 485 600 750 1800 -- -- -- -- -- 1.5 4 5.5 6 7 9 7.6 8 9 10 15 20 25 30 32 40 50 3.6 8.6 26.0 46.5 58 68 84 200 38.5 70 230 375 485 600 750 1800 4 5.5 6 7 9 7.6 8 9 * Watts loss provided at rated current. * See accessories on page 216. 13 (0.511") * * * * 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 Data Sheet: 720025 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa 207 High Speed Fuses Ferrule -- FWP 690V/700V (IEC/UL): 1-50A, Striker Optional Without Striker FWP 5-50A: 660V/700V (14x 51mm) Time-Current Curve 104 6 4 2 103 6 4 2 FWP-25A14F FWP-30A14F FWP-32A14F FWP-40A14F FWP-50A14F 102 Virtual Pre-Arcing Time In Seconds 6 4 2 101 6 4 2 100 6 4 FWP-5A14F FWP-10A14F FWP-15A14F FWP-20A14F 2 10-1 6 4 2 10-2 6 4 2 10-3 6 4 2 10-4 2 4 6 8 2 101 4 6 8 2 102 4 6 8 103 6 105 Prospective Current In Amps RMS Peak Let-Through Curve 104 FWP-50A14F FWP-40A14F FWP-32A14F FWP-30A14F FWP-25A14F 6 4 Peak Let-Through Current 2 103 6 4 2 FWP-20A14F FWP-15A14F FWP-10A14F FWP-5A14F 102 6 4 2 101 101 2 4 6 102 2 4 6 103 2 4 6 104 2 4 2 Prospective Short-Circuit Current Symmetrical RMS Data Sheet: 35785307 208 For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa