Datasheet

Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
314
Axial Lead & Cartridge Fuses
3AG > Fast Acting > 312/318 Series
312/318 Series
© 2009 Littelfuse, Inc.
Specications are subject to change without notice.
Please refer to www.littelfuse.com/series/312.html
or /318.html for current information.
Amp
Code
Ampere
Rating (A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting
I
2
t (A
2
sec)
Agency Approvals
PS
E
.10
*
0.01 250
35A@250Vac
10KA@125Vac
177.4000 NA x x x
**
.031
*
0.031 250 23.6500 0.0000300 x x x
.062 0.062 250 24.7000 0.000249 x x x
.100 0.1 250 11.2800 0.00102 x x x
.125 0.125 250 7.1450 0.00289 x x x
.150 0.15 250 5.1300 0.00550 x x x
.175 0.175 250 3.8750 0.00960 x x x
.187 0.187 250 3.4200 0.0128 x x x
.200 0.2 250 3.0200 0.0165 x x x
.250 0.25 250 2.0100 0.0355 x x x
.300 0.3 250 1.4050 0.0689 x x x
.375 0.375 250 0.8250 0.185 x x x
.500 0.5 250 0.4980 0.483 x x x
.600 .6 250 0.3620 0.880 x x x
.750 0.75 250 0.2445 1.84 x x x
001.1250 0.19000.760x xxxx
1.25 1.25 250
100A@250Vac
10KA@125Vac
0.1385 1.45 x x x x x
01.5 1.5 250 0.1036 2.35 x x x x
01.6 1.6 250 0.0934 2.80 x xxxx
1.75 1.75 250 0.0856 3.60 x x x x
01.8 1.8 250 0.0825 3.85 x x x x
002. 2 250 0.0704 5.20 x xxxx
2.25 2.25 250 0.0594 7.20 x xxxx
02.5 2.5 250 0.0513 9.54 x xxxx
003. 3 250 0.0427 14.0 x xxxx
004. 4 250
200A@250Vac
10KA@125Vac
0.0293 28.5 x xxxx
005. 5 250 0.0224 50.0 x xxxx
006.6250 0.0178118.0x xxxx
007.7250 0.0146118.0x xxxx
008. 8 250 0.0122 166.0 x xxxx
010. 10 250 0.0093 298.0 x xxxx
012.
*
12 32
300A@32 Vac
0.0072 234.6 x x
**
x
015.
*
15 32 0.0052 490.5 x x
**
x
020.
*
20 32 0.0035 1029 x x
**
x
025.
*
25 32 0.0024 2041 x x
**
x
030.
*
30 32 0.0019 3717 x x
**
x
035. 35 32 0.0013 7531
NOTES:
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** For 318 Series 12A to 30A, the agency approval is only cURus.
Electrical Characteristic Specications by Item