form no. page 1 of 1 bif doc #720008 bussmann 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. 12-28-98 sb98107 rev. a ferrule fwh 500v 1-30a dimensions 500 400 250 100 1.5 1.0 0.5 0.3 0.2 0.15 e g k u l 2.0 1.6 1.2 10 3 800 600 500 400 300 100 400 300 200 500 e g k p 1.0 0.8 0.4 0.5 0.6 0.3 0.2 0.1 30 40 50 60 70 80 90 100% i b 50.8 (2.000") 15.5 (0.610") 14.3 (0.563") electrical characteristics ordering information dimensions curves rated i 2 t (a 2 s) carton see page current clearing watts part carton weight figure or size rms-amps pre-arc at 500v loss number qty. (kg) number (bif #) 1 ? ? ? fwh-1a14f 2 ? ? ? FWH-2A14F 3 ? ? 2.3 fwh-3a14f 4 ? ? ? fwh-4a14f 5 1.6 6.4 1.5 fwh-5a14f 14 ? 51mm 6 1.6 6.4 1.5 fwh-6a14f page 93 (?) 10 3.6 13 4 fwh-10a14f 10 0.250 fig. 1 (35785298) 12 ? ? ? fwh-12a14f 15 10 40 5.5 fwh-15a14f 20 26 96 6 fwh-20a14f 25 49 191 7 fwh-25a14f 30 58 232 9 fwh-30a14f 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 u.l. recognition on 5 through 30 amperes only. consult bussmann for additional ratings. n see accessories on page 90. fig. 1: 1-30 amp range dimension in mm. 1mm = 0.0394 1 = 25.4mm total clearing i 2 t the total clearing i 2 t at rated voltage and at power factor of 15% are given in the electrical characteristics. for other volt- ages, the clearing i 2 t is found by multi- plying by correction factor, k , given as a function of applied working voltage, e g , (rms). arc voltage this curve gives the peak arc voltage, u l , which may appear across the fuse during its operation as a function of the applied working voltage, e g , (rms) at a power factor of 15%. power losses 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, k p , is given as a function of the rms load current, i b , in % of the rated current . electrical characteristics
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