Special Application Fuses
481 Series Alarm Indicating Fuse
481 Series Alarm Indicating Fuse
Description
Agency Approvals
Agency
Agency File Number
Features
E71611
LR 29862
Electrical Characteristics
% of Ampere
Rating
Opening Time
Applications
Electrical Characteristics
Ampere
Rating
(A)
Amp
Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Body
Color
Code
Nominal
Cold Resistance
(Ohms)
Nominal Melting
I
2
t (A
2
Sec.)
Agency
Approvals
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/481.html for current information.
347
Revised: August 10, 2011
Alarm Indicating Fuse 481 Series
481 Series
&
Introduction to Application Fuses
Special Circuit Protection
Transientology
481 Series Alarm Indicating Fuse
Product Characteristics
Operating Temperature
Material
Thermal Shock
Vibration
Insulation Resistance
(After Opening)
125
O
– 55
O
O
O
Dimensions
22.9
mm
(.90") MIN.
17.8
mm
(.70")
Average Time Current Curves
18/100 A
1/4 A
1/2 A
65/100 A
3/4 A
1A
1 1/3 A
2A
3A
4A
5A
7 1/2 A
10 A
12 A
15 A
20 A
LENS
19.6
mm
(.77")
21.3
mm
(0.84")
REF.
1000
11.7
mm
(.46")
TIME IN SECONDS
100
16.9
mm
(.665") MAX.
(.109")
8
mm
.23")
5.3
mm
(.21")
2.77
(.175")
4.45
(.110")
2.79
10
1-15A
20A*
1
0.1
Part Numbering System
0.01
0.1
1
10
100
CURRENT IN AMPERES
1000
0481 .180 H XL P
RoHS ITEM OPTION CODE:
Blank = Standard design item
P = RoHS compliant version item
(available in 2-20 amp range only)
OPTION CODE:
Blank = Standard
XL = Protective Lens
QUANTITY CODE:
V = 5 pack
H = 100 pack
AMP CODE
(See Electrical Characteristics Table)
SERIES
Alarm Indicating Fuse 481 Series
348
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/481.html for current information.
能源基础设施
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