Littelfuse FK3 80V Series User Manual download pdf

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FK3 MAXI

STYLE BLADE FUSE RATED 80V

Description

The FK3-80 is a MAXI

style fuse rated at 80V, featuring three

piece design with copper contacts for excellent reliability in harsh

environment conditions and low voltage drop. Current ratings 20A

thru 50A. Filled with arc-quenching material.

Speciﬁcations

Insulating Body: Out of thermoplastic (UL 94-V0, heat-resistant)

Cover: Out of thermoplastic (UL 94-V0, heat-resistant)

Red, not transparent

Terminals: Blade contacts

Copper alloy, gal. Sn

Edge-protected

Interrupting Rating: 1000 A @80 VDC

Complies with: UL 248 Special Purpose Fuses

cULus Recognized: File No. E10480

Time-Current Characteristics

% of Rating Opening Time Min / Max (s)

100 360,000 s / –

135 – / 1,800 s

200 2 s / 60 s

350 0.20 s / 7 s

600 0.040 s / 1 s

Ordering Information

Part Number Package Size

166.6885.5xx2 1000

166.6885.5xx1 10

Corresponding holder see Section “Fuse Holders.”

Ratings

Part Number Current Rating Housing Color Typ. Voltage Drop Cold Resistance I

166.6885.520_ 20 A 120 mV 4.50 mΩ 2,160 A²s

166.6885.530_ 30 A

160 mV 3.00 mΩ 4,950 A²s

166.6885.540_ 40 A

110 mV 1.65 mΩ 12,800 A²s

166.6885.550_ 50 A

100 mV 1.20 mΩ 25,500 A²s

FI = 1.43 (max. operating

current : 0.7 x I

rat

at 23°C)

Pre-Arcing Time-Limits

Dimensions

Dimensions in mm

Blade Fuses

Littelfuse FK3 80V Series User Manual

Browse online or download User Manual for Hardware Littelfuse FK3 80V Series. Littelfuse FK3 80V Series User Manual

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Littelfuse FK3 80V Series User Manual

Browse online or download User Manual for Hardware Littelfuse FK3 80V Series. Littelfuse FK3 80V Series User Manual

Summary of Contents

Comments to this Manuals

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