312031 Datasheet, PDF (1/1 Pages) Littelfuse – Axial Lead and Cartridge Fuses

Axial Lead and Cartridge Fuses
Glass Body
3AG Fast-Acting Type 312/318 Series
U_{® L}
®
A standard for cost-effective reliability and performance in circuit protec-
tion, the 3AG fuse satisfies a broad range of application requirements.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
Ampere
Rating
Opening
Time
100%
1/32–35
4 hours, Minimum
135%
1/32–35
1 hour, Maximum
1/32–10
5 sec., Maximum
200%
12–30
10 sec., Maximum
35
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
318 000 Series
INTERUPTING RATING:
10,000A @ 125VAC
35A @ 250VAC
ORDERING INFORMATION:
Cartridge
Catalog
Number
Axial Lead
Catalog Ampere
Number Rating
Voltage
Rating
Nominal
Resistance
Cold Ohms
Nominal
Melting I²t
A² Sec.
6.35
(.25")
6.985 (.275")
0.813
(.032")
31.75
(1.25")
32.385
(1.275")
38.1
(1.50") TYP.
Axial Lead Material: Solder coated copper.
312.031
318.031
1/32
250
312.062
318.062
1/16
250
312.100
318.100
1/10
250
312.125
318.125
1/8
250
23.3
24.5
11.2
7.10
0.0000300
0.000249
0.00102
0.00289
Average Time Current Curves
312.150
318.150 15/100 250
5.10
0.00550
312.175
318.175
.175
250
3.85
0.00960
312.187
318.187
3/16
250
3.40
0.0128
11
312.200
318.200
2/10
250
3.00
0.0165
312.250
318.250
1/4
250
2.00
0.0355
1000
312.300
318.300
3/10
250
1.40
0.0689
312.375
318.375
3/8
250
0.820
0.185
312.500
318.500
1/2
250
0.495
0.483
312.600
318.600
6/10
250
0.360
0.880
312.750
318.750
3/4
250
0.243
1.84
100
312 001
318 001
1
250
0.189
0.760
312 1.25 318 1.25
1¹/4
250
0.138
1.45
312 01.5 318 01.5
1¹/2
250
0.103
2.35
312 01.6 318 01.6
1⁶/10
250
0.0930
2.80
312 1.75 318 1.75
1³/4
250
0.0850
3.60
10
312 01.8 318 01.8
1⁸/10
250
0.0820
3.85
312 002
318 002
2
250
0.0700
5.20
312 2.25 318 2.25
2¹/4
250
0.0590
7.20
312 02.5 318 02.5
2¹/2
250
0.0510
9.54
312 003
318 003
3
250
0.0424
14.0
1
312 004
318 004
4
250
0.0291
28.5
312 005
318 005
5
250
0.0223
50.0
312 006
318 006
6
250
0.0177
81.1
312 007
318 007
7
250
0.0145
118.0
312 008
318 008
8
250
0.0121
166.0
0.1
312 010
318 010
10
250
312 012
—
12
32
312 015
—
15
32
312 020
—
20
32
312 025
—
25
32
312 030
—
312 035
—
30
32
35
32
0.00925
0.0071
0.0052
0.0034
0.0024
0.0019
0.0013
298.0
—
—
—
—
—
—
0.01
0.005 0.01
0.1
1
10
100
CURRENT IN AMPERES
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