Axial Lead and Cartridge Fuses
Glass Body
3AG
Fast-Acting Type 312/318 Series
A standard for cost-effective reliability and performance in circuit protec-
tion, the 3AG fuse satisfies a broad range of application requirements.
UL
®
®
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
135%
200%
Ampere
Rating
1/32–35
1/32–35
1/32–10
12–30
35
Opening
Time
4 hours,
Minimum
1 hour,
Maximum
5 sec.,
Maximum
10 sec.,
Maximum
20 sec.,
Maximum
AGENCY APPROVALS:
Listed by Underwriters Laboratories and
Certified by CSA through 30 amperes.
1/100–10 amperes listed to UL 248-14 (UL 198-G)
12–30 amperes listed to UL 275.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
312
000
Series
6.985 (.275")
6.35
(.25")
31.75
(1.25")
318
000
Series
0.813
(.032")
INTERUPTING RATING:
10,000A @ 125VAC
35A @ 250VAC
ORDERING INFORMATION:
Cartridge
Catalog
Number
312.031
312.062
312.100
312.125
312.150
312.175
312.187
312.200
312.250
312.300
312.375
312.500
312.600
312.750
312
001
312
1.25
312
01.5
312
01.6
312
1.75
312
01.8
312
002
312
2.25
312
02.5
312
003
312
004
312
005
312
006
312
007
312
008
312
010
312
012
312
015
312
020
312
025
312
030
312
035
Axial Lead
Catalog
Number
318.031
318.062
318.100
318.125
318.150
318.175
318.187
318.200
318.250
318.300
318.375
318.500
318.600
318.750
318
001
318
1.25
318
01.5
318
01.6
318
1.75
318
01.8
318
002
318
2.25
318
02.5
318
003
318
004
318
005
318
006
318
007
318
008
318
010
—
—
—
—
—
—
Ampere
Rating
1/32
1/16
1/10
1/8
15/100
.175
3/16
2/10
1/4
3/10
3/8
1/2
6/10
3/4
1
1
1
/
4
1
1
/
2
1
6
/
10
1
3
/
4
1
8
/
10
2
2
1
/
4
2
1
/
2
3
4
5
6
7
8
10
12
15
20
25
30
35
Voltage
Rating
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
Nominal
Resistance
Cold Ohms
23.3
24.5
11.2
7.10
5.10
3.85
3.40
3.00
2.00
1.40
0.820
0.495
0.360
0.243
0.189
0.138
0.103
0.0930
0.0850
0.0820
0.0700
0.0590
0.0510
0.0424
0.0291
0.0223
0.0177
0.0145
0.0121
0.00925
0.0071
0.0052
0.0034
0.0024
0.0019
0.0013
Nominal
Melting I
2
t
A
2
Sec.
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
81.1
118.0
166.0
298.0
—
—
—
—
—
—
38.1
(1.50") TYP.
Axial Lead Material: Solder coated copper.
32.385
(1.275")
Average Time Current Curves
.031 A
.062 A
.125 A
100
TIME IN SECONDS
10
1
0.1
0.01
0.005 0.01
1
0.1
CURRENT IN AMPERES
10
100
w w w. l i t t e l f u s e . c o m
401
AXIAL LEAD AND
1000
.250 A
.375 A
.500 A
.750 A
1A
1.5 A
2A
2.5 A
3A
4A
5A
6A
7A
8A
10 A
11
DSP and ARM Processors
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