Littelfuse FLA User Manual
Axial Lead and Cartridge Fuses
444
www.littelfuse.com
Special Midget
13/
8
"
Long Fast-Acting Type Fuse BLS Series
ELECTRICAL CHARACTERISTICS:
% of Ampere Ampere Opening
Rating Rating Time
135%
2
/10–10 1 hour, Maximum
200%
2
/10–10 2 minutes, Maximum
AGENCY APPROVALS: Listed by Underwriters Laboratories from
1
/
2
through 5 amperes and Certified by CSA from 1/2through 5 amperes.
INTERRUPTING RATING: 10,000 amperes at rated VAC.
PATENTED
ORDERING INFORMATION:
Cartridge Nominal
Catalog Ampere AC V olta ge Resistance
Number Rating Rating Cold Ohms
BLS 2/10 .200 600 36
BLS 4/10 .400 600 11.5
BLS 1/2 .500 600 1.25
BLS 3/4 .750 600 .591
BLS 8/10 .800 600 .524
BLS 1 1 600 .944
BLS 11/
2
1.5 600 .190
BLS 16/
10
1.6 600 .180
BLS 18/
10
1.8 600 .143
BLS 2 2 600 .2608
BLS 3 3 600 .10625
BLS 4 4 600 .0464
BLS 5 5 600 .0330
BLS 6 6 250 .0182
BLS 7 7 250 .1045
BLS 8 8 250 .012
BLS 10 10 250 .00881
Slo-Blo
®
Indicating Type Fuse FLA Series
ELECTRICAL CHARACTERISTICS:
% of Ampere Opening
Rating Time
135% 1 hour, Maximum
AGENCY APPROVALS: Listed by Underwriters Laboratories.
INTERRUPTING RATING: 10,000 amperes at rated VAC.
INDICATING PIN: Extends 0.3" when fuse opens.
NOTE: Fuses rated 12–30 amperes have dual tube construction.
Nominal Nominal
Catalog Ampere Resistance Catalog Ampere Resistance A C Voltage
Number Rating Cold Ohms Number Rating Cold Ohms Rating
FLA 1/10 .100 200.0 FLA 5 5 .06304 125
FLA 15/100
.15 88.90 FLA 56/105.6 .05194 125
FLA 2/10 .200 50.00 FLA 6 6 .04253 125
FLA 1/4 .250 32.00 FLA 61/46.25 .03794 125
FLA 3/10 .300 22.20 FLA 7 7 .03146 125
FLA 4/10 .400 11.39 FLA 8 8 .01890 125
FLA 1/2 .500 8.00 FLA 10 10 .01387 125
FLA 6/10 .600 5.55 FLA 12 12 .00689 125
FLA 8/10 .800 3.65 FLA 15 15 .00530 125
FLA 1 1 1.9504 FLA 20 20 .00385 125
FLA 11/81.125 1.7004 FLA 25 25 .00275 125
FLA 11/41.250 1.4004 FLA 30 30 .00226 125
FLA 14/
10
1.4 1.1204 125
FLA 11/
2
1.5 .8204 125
FLA 16/
10
1.6 .7027 125
FLA 18/
10
1.8 .5637 125
FLA 2 2 .4627 125
FLA 21/42.25 .3557 125
FLA 21/
2
2.5 .2599 125
FLA 28/
10
2.8 .2048 125
FLA 3 3 .1816 125
FLA 32/
10
3.2 .1587 125
FLA 31/
2
3.5 .1195 125
FLA 4 4 .09772 125
FLA 41/
2
4.5 .07875 125
®
U
L
ORDERING INFORMATION:
34.925
(1.375")
10.31
(.406")
U
®
L
®
38.1
(1.50")
10.31
(.406")
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