Cartridge and Axial Lead Fuses
3AG > Fast Acting > 312/318 Series
Electrical Characteristic Specifications by Item
Amp
Code
.10
*
.031
*
.062
.100
.125
.150
.175
.187
.200
.250
.300
.375
.500
.600
.750
001
1.25
01.5
01.6
1.75
01.8
002
2.25
02.5
003
004
005
006
007
008
010
012
015
020
025
030
035
NOTES:
** 312 Series only. Refer to Agency Approvals section of this document.
*** 318 Series only. Refer to Agency Approvals section of this document.
Ampere
Rating (A)
0.01
0.031
0.062
0.1
0.125
0.15
0.175
0.187
0.2
0.25
0.3
0.375
0.5
.6
0.75
1
1.25
1.5
1.6
1.75
1.8
2
2.25
2.5
3
4
5
6
7
8
10
12
15
20
25
30
35
Max
Voltage
Rating
(V)
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
32
32
32
32
32
12A ~ 35A
300A@32 Vac
4A ~ 10A
200A@250Vac
10KA@125Vac
1.25A ~ 3A
100A@250Vac
10KA@125Vac
10mA ~ 1A
35A@250Vac
10KA@125Vac
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
177
.4000
23.6500
24.7000
11.2800
7
.1450
5.1300
3.8750
3.4200
3.0200
2.0100
1.4050
0.8250
0.4980
0.3620
0.2445
0.1900
0.1385
0.1036
0.0934
0.0856
0.0825
0.0704
0.0594
0.0513
0.0427
0.0293
0.0224
0.0178
0.0146
0.0122
0.0093
0.0072
0.0052
0.0035
0.0024
0.0019
0.0013
Nominal
Melting
I
2
t (A
2
sec)
NA
0.0000300
0.000249
0.00102
0.00289
0.00550
0.00960
0.0128
0.0165
0.0355
0.0689
0.185
0.483
0.880
1.84
0.760
1.45
2.35
2.80
3.60
3.85
5.20
7
.20
9.54
14.0
28.5
50.0
118.0
118.0
166.0
298.0
234.6
490.5
1029
2041
3717
7531
Agency Approvals
UL
®
PS
E
®
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
x
**
x
x
x
x
x
x
x
x
x
x
x
**
x
**
x
**
x
**
x
***
x
***
x
***
x
***
x
**
x
**
x
**
x
**
312/318 Series
154
Revised: July 16, 2008
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com/series/312.html or 318.html for current information.
Please refer to www.littelfuse.com
LITTELFUSE [ LITTELFUSE ]
