Blade Fuses
TF ATO® ST YLE 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
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
Dimensions in mm
Time-Current Characteristics
% of Rating Opening Time Min / Max (s)
110 14,400 s / –
200
(4A & 8A only)
300 – / 10 s
500 0.20 s / –
– / 300 s
Pre-arcing Time-limits
Ratings
Part Number Current Rating Housing Color Typ. Voltage Drop Cold Resistance I2t
162.7049.4402 4 A 115 mV 19.4 Ω > 100 A²s
162.7049.4802 8 A 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.”
www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog
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