High Current Fuses BF2 FUSE RATED 32V Specifications Housing Material: Terminal: Mounting Torque: Breaking Capacity: Complies with: Heat Resistant 94-V0 Thermoplastic Visible melting element Copper alloy, gal. Sn 2 x M8 bolts, Distance 51 mm 12.0 Nm +/- 1Nm 100 A - 300 A: 2.000 A, 32V, DC 400 A - 500 A: 1.500 A, 32V, DC ISO 8820-5 UL 248 Special Purpose Fuses Ordering Information Part Number Package Size 153.5395.xxxx 200 Description This BF2 fuse is rated at 32V and offers a bolt-on fuse for high current wiring protection. Current rating 100A - 500A; with transparent housing material for easy detection of blown fuses. Time Current Characteristics % of Rating Opening Time Min / Max (s) 100A - 250A 300A - 500A 75 –/– 4h/– 100 4h/– –/– 135 120 s / 1,800 s –/– 200 1 s / 15 s 1 s / 15 s 350 0.300 s / 5 s 0.500 s / 5 s 600 0.100 s / 1 s 0.100 s / 1 s Ratings Part Number Current Rating 153.5395.610_ 153.5395.612_ Housing Color Typ. Voltage Drop Cold Resistance I2t 100 A 110 mV 0.70 mΩ 46,800 A²s 125 A 110 mV 0.52 mΩ 118,100 A²s 153.5395.615_ 150 A 110 mV 0.42 mΩ 113,400 A²s 153.5395.617_ 175 A 110 mV 0.36 mΩ 154,400 A²s 153.5395.620_ 200 A 110 mV 0.34 mΩ 288,000 A²s 153.5395.622_ 225 A 110 mV 0.29 mΩ 236,000 A²s 153.5395.625_ 250 A 110 mV 0.25 mΩ 292,500 A2s 153.5395.630_* 300 A 110 mV 0.21 mΩ 486,000 A²s 153.5395.640_* 400 A 110 mV 0.13 mΩ 964,000 A²s 153.5395.650_* 500 A 110 mV 0.12 mΩ 1,449,000 A²s Last figure of article no. = packaging code Corresponding holder see Section “Fuse Holders.” * Parts with asterisk are short circuit protectors only. www.littelfuse.com High Current Fuses BF2 FUSE RATED 32V Time-Current Characteristic Curves Dimensions TIME-CURRENT CHARACTERISTIC CURVES (RECORDED@23°C) 100A 125A 150A 175A 200A 225A 250A 300A 400A 500A Dimensions in mm 1000 TIME [s] 100 10 1 0,1 10 100 1000 CURRENT [A] 100A-300A: FL=1,25 (max. operating current: 0,8 x Irat at 23°C) 400A-500A: FL=2,00 (max. operating current: 0,5 x Irat at 23°C) www.littelfuse.com 10000