312P Datasheet, PDF (1/1 Pages) Littelfuse – Axial Lead and Cartridge Fuses - Glass Body

Axial Lead and Cartridge Fuses
Glass Body
3AG ^RoHS Pb
Fast-Acting Type 312P/318P Series
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.
INTERUPTING RATING:
10,000A @ 125VAC
35A @ 250VAC
ORDERING INFORMATION:
Cartridge
Catalog
Number
312.031P
312.062P
312.100P
312.125P
312.150P
312.175P
312.187P
312.200P
312.250P
312.300P
312.375P
312.500P
312.600P
312.750P
312 001P
312 1.25P
312 01.5P
312 01.6P
312 1.75P
312 01.8P
312 002P
312 2.25P
312 02.5P
312 003P
312 004P
312 005P
312 006P
312 007P
312 008P
312 010P
312 012P
312 015P
312 020P
312 025P
312 030P
312 035P
Axial Lead
Catalog
Number
318.031P
318.062P
318.100P
318.125P
318.150P
318.175P
318.187P
318.200P
318.250P
318.300P
318.375P
318.500P
318.600P
318.750P
318 001P
318 1.25P
318 01.5P
318 01.6P
318 1.75P
318 01.8P
318 002P
318 2.25P
318 02.5P
318 003P
318 004P
318 005P
318 006P
318 007P
318 008P
318 010P
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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
1¹/4
1¹/2
1⁶/10
1³/4
1⁸/10
2
2¹/4
2¹/2
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 I²t
A² 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
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U_{® L}
®
312 000P Series 318 000P Series
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: Tin coated copper.
Average Time Current Curves
1000
100
10
1
0.1
0.01
0.005 0.01
0.1
1
10
100
CURRENT IN AMPERES
402
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