Bussmann Ferrule FWP 660V/700V (IEC/U.L.) 20-100A Electrical Characteristics Ordering Information Dimensions Curves 2 2 I t (A S) Rated Carton Current Clearing Watts Part Carton Weight Figure Size RMS-Amps Pre-arc at 660V Loss Number Qty. (kg) Number BIF 20 23 260 4.6 FWP-20A22F 25 37 410 5.6 FWP-25A22F 32 55 605 7.0 FWP-32A22F 22 58mm 40 68 750 8.5 FWP-40A22F 10 0.450 Fig. 1 35785291 () 50 155 1600 9.5 FWP-50A22F 63 280 3080 11 FWP-63A22F 80 600 6600 13.5 FWP-80A22F 100 1100 12500 16 FWP-100A22F n Interrupting rating 200kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg n Watts loss provided at rated current. n (500 Vdc/Interrupting rating 50kA) U.L. Recogition. Dimensions Fig. 1: 20-100 Amp Range 58.0 22.2 (2.283 ) (0.875 ) 15.0 (0.591 ) Dimension in mm. 1mm = 0.0394 1 = 25.4mm Electrical Characteristics 2 Total Clearing I t Arc Voltage Power Losses 2 The total clearing I t at rated voltage and This curve gives the peak arc voltage, Watts loss at rated current is given in at power factor of 15% are given in the U , which may appear across the fuse the electrical characteristics. The curve L electrical characteristics. For other volt- during its operation as a function of the allows the calculation of the power 2 ages, the clearing I t is found by multi- applied working voltage, E , (RMS) at a losses at load currents lower than the g plying by correction factor, K, given as power factor of 15%. rated current. The correction factor, K , p a function of applied working voltage, is given as a function of the RMS load E , (RMS). current, I , in % of the rated current . g b 1.4 1.4 1.0 Kp 1.2 1.2 U 0.8 K L 3 10 1.0 0.6 9 0.9 0.5 8 0.8 0.4 7 0.7 0.3 6 0.6 5 0.5 0.2 4 0.4 E E g g I 0.1 b 3 0.3 200 300 400 500 600 700 200 300 400 500 600 700 30 40 50 60 70 80 90 100% The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Form No. FWP Page 1 of 1 7-18-01 SB01191 BIF Doc 720026