Blade Fuses TF ATO ® STYLE BLADE FUSE RATED 90V Specifications Insulating Body: Out of thermoplastic (UL 94-V0, heat-resistant) Cover: Out of thermoplastic (UL 94-V0, heat-resistant) Visible melting element Terminals: Blade contacts Copper alloy, gal. Sn Edge-protected Test cable: 4 mm² Ordering Information Part Number Package Size 162.7049.xxx2 2000 Time-Current Characteristics Description The TF is an ATO ® style blade fuse rated at 90V, featuring a three part construction with copper contacts for excellent reliability in harsh environment conditions and low voltage drop. With seethrough cover for easy detection of blown fuses. The fuses were defined over the I²t value, not via t/c curve requirements. Dimensions % of Rating Opening Time Min / Max (s) 110 14,400 s / – 200 (4A & 8A only) – / 300 s 300 – / 10 s 500 0.20 s / – Pre-arcing Time-limits Dimensions in mm Ratings Part Number Current Rating 162.7049.4402 Housing Color Typ. Voltage Drop Cold Resistance I2t 4A 115 mV 19.4 Ω > 100 A²s 162.7049.4802 8A 80 mV 7.50 Ω > 300 A²s 162.7049.5102 10 A 70 mV 6.10 Ω > 580 A²s 162.7049.5152 15 A 65 mV 3.50 Ω > 1,700 A²s Remark: TF-fuse links are back-up fuse links, see minimum fault current. Corresponding holder see Section “Fuse Holders.” © 2012 Littelfuse • Transportation Products Catalog www.littelfuse.com