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481 Datasheet(PDF) 1 Page - Littelfuse

Part No. 481
Description  Blade Terminal & Special Purpose Fuses
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Maker  LITTELFUSE [Littelfuse]
Homepage  http://www.littelfuse.com
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481 Datasheet(HTML) 1 Page - Littelfuse

   
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Blade Terminal & Special Purpose Fuses
460
www .littelfuse .com
481 Series Alarm Indicating Fuse
1000
100
10
1
0.1
0.01
1000
100
10
1
0.1
CURRENT IN AMPERES
Average Time Current Curves
• Ideal for telecommunications and control panel circuits.
• Eliminates down time by immediately pinpointing the blown (open)
circuit while triggering LED or audio alarm, while placed in mating
holder (482 Series).
• Clear plastic lens option available for additional safety.
®
®
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
Opening Time
100%
10 minutes, Minimum
150%
5 minutes, Maximum
AGENCY APPROVALS: Recognized under the Components Program
of Underwriters Laboratories and the Components Acceptance Program
of CSA.
AGENCY FILE NUMBERS: UL E71611, CSA LR 29862
INTERRUPTING RATINGS:
450 amperes at 60 VDC
300 amperes at 125 VAC (up to 20 amperes)
300 amperes at 125 VDC (up to 15 amperes)
200 amperes at 125 VDC (up to 20 amperes)
ENVIRONMENTAL SPECIFICATION:
Operating Temperature: –55°C to +125°C
PHYSICAL SPECIFICATIONS:
Construction Materials:
Body:
Polyphenylene Sulfide (UL 94V0)
Terminations:
Beryllium Copper/Tin Plated
Optional Lens:
Nylon
PACKAGING SPECIFICATIONS:
Available in five (5) packs or boxes of one hundred (100). When ordering
a Five (5) Pack, please add the letter ‘V’ after the catalog number. When
ordering a one hundred (100) piece box, add a ‘H’. To order the part with
a Protective Lens, add the letters ‘XL’ after the package code.
Ampere
Voltage
Body
Nominal Cold
Minimum
Catalog
Rating
Rating
Color
Resistance
Melting I2t
Number
(A)
Code
Ohms
(A2 Sec.)
0481.180
18/100
Yellow
6.25
0.00808
0481.200
1/5
Red/Black
5.70
0.0140
0481.250
1/4
Violet
4.20
0.0356
0481.375
3/8
Gray/White
2.00
0.028
0481.500
1/2
Red
1.52
0.139
0481.650
65/100
Black
1.25
0.278
0481.750
3/4
Brown
.980
0.363
0481001.
1
Gray
.665
0.733
04811.33
11/3
125 VAC
White
.480
1.58
048101.5
11/2
&
Yellow/White
.385
2.55
0481002.
2
125 VDC
Orange
.120
5.29
048102.5
21/2
Orange/White
.0904
9.46
0481003.
3
Blue
.0670
11.2
048103.5
31/2
Blue/White
.0415
10.5
0481004.
4
Brown/White
.0350
15.4
0481005.
5
Green
.0285
26.2
048107.5
71/2
Black/White
.0113
42.8
0481010.
10
Red/White
.00840
115.3
0481012.
12
Green/Yellow
.00660
222.5
0481015.
15
Red/Blue
.00580
294.22
0481020.
20*
Green/White
.00394
570.0
0481000.
Dummy
ø
*20A Fuseholder must be used. Fuse is keyed to prevent insertion in lower rated holders.
20A Fuseholder is designed to accept all ratings up to 20 amperes.
ORDERING INFORMATION:
22.9mm
(.90") MIN.
5.8mm
(.23")
5.3mm
(.21")
16.9mm
(.665") MAX.
11.7mm
(.46")
17.8mm (.70")
19.6mm
(.77")
21.3mm
(0.84")
REF.
LENS
2.77
(.109")
2.79
(.110")
4.45
(.175")
1-15A
20A*
Reference Dimensions:
*20A Fuseholder must be used. Fuse is keyed to prevent insertion in lower rated holders.
20A Fuseholder is designed to accept all ratings up to 20 amperes.


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