High Current Fuses BF2 Fuses Rated 32V 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. Specifications Housing Material: Clear Housing Material: Terminal: Mounting Torque: Breaking Capacity: Complies with: PET-GF30 PES 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 BF2 Fuses Ordering Information Part Number Time Current Characteristics Package Size % of Rating Standard M8 Holes 153.5395.xxxx 200 M6 Holes 153.7011.xxxx 200 Ratings Time-Current Characteristic Curves 100A 125A 150A 175A 200A 225A 250A 300A 400A 500A TIME-CURRENT CHARACTERISTIC CURVES (RECORDED@23°C) 1000 TIME [s] 100 10 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 Part Number M8 Holes Part Number M6 Holes Current Rating (A) 153.5395.610_ 153.7011.610_ 100 110 0.70 46,800 153.5395.612_ 153.7011.612_ 125 110 0.52 118,100 153.5395.615_ 153.7011.615_ 150 110 0.42 113,400 153.5395.617_ 153.7011.617_ 175 110 0.36 154,400 153.5395.620_ 153.7011.620_ 200 110 0.34 288,000 153.5395.622_ 153.7011.622_ 225 110 0.29 236,000 153.5395.625_ 153.7011.625_ 250 110 0.25 292,500 153.5395.630_* 153.7011.630_* 300 110 0.21 486,000 153.5395.640_* 153.7011.640_* 400 110 0.13 964,000 153.5395.650_* 153.7011.650_* 500 110 0.12 1,449,000 Housing Color Typ. Voltage Drop Cold Resistance (mV) (mΩ) I2t (A2s) Last figure of article no. = packaging code Corresponding holder see Section “Fuse Holders.” * Parts with asterisk are short circuit protectors only. 1 Dimensions Dimensions in mm 0,1 10 100 1000 10000 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) Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation. littelfuse.com