Bussmann Ferrule FWX 250V (U.L.) 1-30A 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 250V Loss Number Qty. (kg) Number BIF 1 FWX-1A14F 2 FWX-2A14F 3 FWX-3A14F 4 FWX-4A14F 14 51mm 5 1.6 13 1.3 FWX-5A14F 10 0.225 Fig. 1 35785302 () 10 3.6 24 3.4 FWX-10A14F 15 14 83 3.8 FWX-15A14F 20 33 200 4.6 FWX-20A14F 25 58 300 5.3 FWX-25A14F 30 100 500 5.9 FWX-30A14F 50 200 1800 5.7 FWX-50A14F n Interrupting rating 200kA RMS Symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg n Watts loss provided at rated current. n (250 Vdc/Interrupting rating 50kA) U.L. Recognition on 5 through 30 amperes only. Consult Bussmann for additional ratings. n See accessories on page 90. Dimensions Fig. 1: 1-30 Amp Range 50.8 14.3 (2.000 ) (0.563 ) 15.5 Dimension in mm. (0.610 ) 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 1.0 1.5 Kp U K 1.2 L 0.8 3 1.0 10 0.6 0.5 800 0.4 600 0.5 0.3 500 400 0.2 0.3 300 0.2 E g I b Eg 0.1 200 0.15 50 100 150 200 250V 30 40 50 60 80 90 100% 75 125 200 250 300 70 RMS 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. Form No. Bussmann also reserves the right to change or update, without notice, any technical information con- Page 1 of 1 tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible SB01191 BIF Doc 720006 7-18-01 applications.