12-28-98 sb98107 rev. a form no. fwk page 1 of 1 bif doc #720039 bussmann the only controlled copy of this bif document is the electronic read-only version located on the bussmann network drive. all ot her 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 en d 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. buss mann 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. ferrule fwk 750v 5-60a dimensions 127.0 (5.000") 16.0 (0.630") 20.5 (0.807") 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 750 vdc loss number qty. (kg) number (bif #) 5 8.5 16 ? fwk-5a20f 8 50 100 ? fwk-8a20f 20 ? 127mm 10 95 200 ? fwk-10a20f page 95 (?) 15 100 240 ? fwk-15a20f 10 0.95 fig. 1 20 125 315 ? fwk-20a20f (35785031) 25 400 1100 ? FWK-25A20F 30 800 2600 ? fwk-30a20f 35 1300 4300 ? fwk-35a25f 25 ? 146mm 40 1600 5300 ? fwk-40a25f 10 1.65 fig. 2 page 95 (1) 50 3100 12000 ? fwk-50a25f (35785031) 60 5900 24000 ? fwk-60a25f n interrupting rating 45ka rms symmetrical. 1 kg = 2.2 lbs. 1 lb = 0.45 kg n 750 vdc rating for 5 through 60 amperes (time constant = 10-15 ms). fig. 1: 5-30 amp range 146.05 (5.75") 25.4 (1") 20.64 (0.813") fig. 2: 35-60 amp range dimension in mm. 1mm = 0.0394 1 = 25.4mm
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