Introduction to Circuit Protection
Axial Lead & Cartridge Fuses
Transientology
3AG > Time Lag > 313/315 Series
Electrical Characteristic Specifications by Item
Agency Approvals
Nominal
Cold
Resistance
(Ohms)
Ampere Voltage
Nominal
Melting
Amp
Code
Interrupting
Rating
Rating
(A)
Rating
(V)
PS
E
I2t (A2 sec)
.010
0.01
0.031
0.04
0.062
0.1
0.125
0.15
0.175
0.187
0.2
0.25
0.3
0.375
0.4
0.5
0.6
0.7
0.75
0.8
1
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
32
4300.0000 0.000121
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
.031
.040
.062
.100
430.0000
300.0000
120.0000
43.0000
30.0000
20.0000
8.6700
8.0100
6.5900
4.2700
3.1350
2.0950
1.8750
1.2600
0.9120
0.7000
0.6215
0.5540
0.3750
0.2780
0.2600
0.1910
0.1710
0.1410
0.1169
0.0968
0.0811
0.0675
0.0593
0.0529
0.0311
0.0214
0.0154
0.0154
0.0128
0.0111
0.00303
0.00630
0.0210
0.0850
0.152
0.270
0.177
0.230
0.270
0.385
0.730
1.23
.125
.150
.175
.187
.200
.250
.300
.375
.400
.500*
.600
.700
.750
.800
001.*
01.2
35A@250Vac
10KA@125Vac
1.35
2.55
4.00
5.90
7.16
8.00
14.0
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
1.2
21.5
1.25
1.25
1.5
24.0
38.0
49.6
58.0
77.0
01.5*
01.6
1.6
01.8
1.8
100A@250Vac
10KA@125Vac
002.*
2.25
02.5
02.8
003.*
03.2
004.*
005.*
6.25*
06.3
007.*
008.*
010.**
010.*
012.
2
2.25
2.5
2.8
3
121
x
x
x
x
x
x
x
x
x
x
x
130
170
200
3.2
4
209
76.1
5
140
6.25
6.3
7
242
200@250Vac
10KA@125Vac
242
347
8
445
10
0.0083
0.0083
0.0065
0.0050
0.0050
0.0022
0.0017
760
10
760
x
x
x
x
x
x
x
12
32
1200
1870
1870
9560
16500
015.**
015.
15
125
32
x
x
x
300A@32Vac
15
020.
025.
20
32
25
32
030.
30
32
0.0012
26900
*
For 313series, these ratings available with an indicating option. Add the “ID” designation to the series number. i.e. 313.500ID.
**These 2 ratings are designed for special voltage requirement. For 10A, it is available as 250Vac rated and the part number is 0313010.
MX250P; for 15A, it is available as 125Vac rated and the part number is 0315015.MX125P.
© 2009 Littelfuse, Inc.
313/315 Series
318
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/313.html
or /315.html for current information.
LITTELFUSE [ LITTELFUSE ]
