Bolt-down Fuses BF1 FUSE RATED 58V Specifications Housing: Terminals: Mounting Torque: Interrupting Rating: Complies with: Operating temperature: Out of thermoplastic (UL 94-V0, heat-resistant) Visible melting element Copper alloy, gal. Sn 2 x M5 bolts, distance 30 mm 4.5 Nm +/- 1Nm 1000A @ 58 VDC ISO 8820-5 UL 248 Special Purpose Fuses -40 to 125 degrees C Ordering Information Part Number Package Size 142.5631.xxx2 500 Time-Current Characteristics Description This BF1 fuse is rated at 58V and offers a bolt-on fuse for high current wiring protection. Current rating 30A - 200A; with transparent housing for easy detection of blown fuses. % of Rating Opening Time Min / Max (s) 75 –/– 200A Short Circuit Protectors 360,000 s / – 100 360,000 s / – –/– 110 14,400 s / – –/– 150 90 s / 3,600 s –/– 200 3 s / 100 s 1 s / 15 s 300 0.300 s / 3 s –/– 350 –/– 0.300 s / 5 s 500 0.100 s / 1 s –/– 600 –/– 0.100 s / 1 s 30-150A Fuses Ratings Part Number Current Rating 142.5631.53021 142.5631.5402 Housing Color Typ. Voltage Drop Cold Resistance I2t 30 A 105 mV 2.70 mΩ 5,100 A²s 40 A 90 mV 1.56 mΩ 6,800 A²s 142.5631.5502 50 A 80 mV 1.03 mΩ 6,900 A²s 142.5631.5602 60 A 75 mV 0.75 mΩ 16,200 A²s 142.5631.5702 70 A 70 mV 0.64 mΩ 22,000 A²s 142.5631.5802 80 A 70 mV 0.55 mΩ 25,600 A²s 142.5631.6102 100 A 70 mV 0.44 mΩ 42,500 A2s 142.5631.6122 125 A 70 mV 0.34 mΩ 62,500 A²s 142.5631.6152 150 A 70 mV 0.29 mΩ 83,400 A²s 142.5631.62022 200 A 70 mV 0.24 mΩ 126,000 A²s Corresponding holder see Section “Fuse Holders.” Note 1: Not UL rated Note 2: Short Circuit Protector only © 2012 Littelfuse • Transportation Products Catalog www.littelfuse.com Bolt-down Fuses BF1 FUSE RATED 58V Dimensions Dimensions in mm Pre-Arcing Time-Limits 30 A - 150 A: FI = 1.25 (max. operating current: 0.8 x Irat at 23°C) 200 A: FI = 2.00 (max.operating current: 0.5 x Irat at 23°C) Derating Individual derating curves by rating can be ordered through your Littelfuse contact person. www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog