Bussmann ® Ferrule FWK 750V Size 5-60A Electrical Characteristics I2t (A2S) Rated Current Clearing RMS-Amps Pre-arc at 750 Vdc Ordering Information Watts Loss Part Number Dimensions Curves Figure Number See Page or (BIF #) Carton Qty. Carton Weight (kg) 10 0.95 Fig. 1 page 95 (35785031) 10 1.65 Fig. 2 page 95 (35785031) 5 8.5 16 — FWK-5A20F 8 50 100 — FWK-8A20F 10 95 200 — FWK-10A20F 20 ≈ 127mm 15 100 240 — FWK-15A20F (⁄‹Ω¡§∑) 20 125 315 — FWK-20A20F 25 400 1100 — FWK-25A20F 30 800 2600 — FWK-30A20F 35 1300 4300 — FWK-35A25F 25 ≈ 146mm 40 1600 5300 — FWK-40A25F (1∑) 50 3100 12000 — FWK-50A25F 60 5900 24000 — FWK-60A25F n Interrupting rating 45kA RMS symmetrical. n 750 Vdc rating for 5 through 60 amperes (Time constant = 10-15 mS). 1 kg = 2.2 lbs. 1 lb = 0.45 kg Dimensions Fig. 1: 5-30 Amp Range 127.0 (5.000") 20.5 (0.807") 16.0 (0.630") Fig. 2: 35-60 Amp Range 146.05 (5.75") 25.4 (1") 20.64 (0.813") Dimension in mm. 1mm = 0.0394∑ 1∑ = 25.4mm 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 Form No. FWK Page 1 of 1 BIF Doc #720039