Littelfuse 313 User Manual
Axial Lead & Cartridge Fuses
3AG > Time Lag > 313/315 Series
313/315 Series Lead-Free 3AG, Slo-Blo® Fuse
PS
E
Description
The 3AG Slo-Blo® fuse solves a broad range of application
requirements while offering reliable performance and costeffective circuit protection.
The fuse catalog number with the suffix “ID” instantly
identifies itself upon opening by showing a discoloration
of its glass body. Guesswork and time consuming circuit
testing are eliminated. This unique design offers the same
quality performance characteristics as the standard 3AG
®
Slo-Blo
Fuse design.
Agency Approvals
Agency Agency File Number Ampere Range
E10480 10mA - 10A**
LR 29862 10mA - 10A**/15A**
E10480 10A - 30A
PS
E
NBK 040205-
E10480B/D/F/G/H
SU05001-
5007/5008/5009/6004
1A - 10A**/ 15A**
2.25A - 8A
10mA - 10A**/15A**
Additional Information
Datasheet
313 Series
Resources
313 Series
Samples
313 Series
Features
• InaccordancewithUL
Standard 248-14
• RoHScompliantand
Lead-free
• Availableincartridge
and axial lead format
and with various forming
dimensions
Applications
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Electrical Characteristics by Series
% of Ampere
Rating
100%
135%
200%
Ampere Rating Opening Time
10mA – 30A 4 hours, Minimum
10mA – 30A 1 hour, Maximum
10mA – 15A 5 sec., Min.,
30 sec., Max
20A – 30A 5 sec., Min.,
60 sec Max
Datasheet
315 Series
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Resources
315 Series
Samples
315 Series
Axial Lead & Cartridge Fuses
PS
E
3AG > Time Lag > 313/315 Series
Electrical Characteristic Specifications by Item
Agency Approvals
Amp
Code
Ampere
Rating
(A)
Voltage
Rating
(V)
.010 0.01 250
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting
2
I
t (A2 sec)
4300.0000 0.000121
x x x
.031 0.031 250 430.0000 0.00303 x x x
.040 0.04 250 300.0000 0.00630 x x x
.062 0.062 250 120.0000 0.0210 x x x
.10 0 0.1 250 43.0000 0.0850 x x x
.125 0.125 250 30.0000 0.152 x x x
.150 0.15 250 20.0000 0.270 x x x
.175 0.175 250 8.6700 0.177 x x x
.187 0.187 250 8 .0100 0.230 x x x
.200 0.2 250 6.5900 0.270 x x x
.250 0.25 250 4.2700 0.385 x x x
35A@250Vac
10KA@125Vac
.300 0.3 250 3.1350 0.730 x x x
.375 0.375 250 2.0950 1.23 x x x
.400 0.4 250 1.8750 1.35 x x x
.500* 0.5 250 1.2600 2.55 x x x
.600 0.6 250 0.9120 4.00 x x x
.700 0.7 250 0.7000 5.90 x x x
.750 0.75 250 0.6215 7. 16 x x x
.800 0.8 250 0.5540 8.00 x x x
0 01. * 1 250 0.3750 14.0 x x x x
01. 2 1. 2 250
0.2780 21.5 x x x x
1.25 1.25 250 0.2600 24.0 x x x x
01.5* 1. 5 250 0.1910 38.0 x x x x
01. 6 1. 6 250 0.1710 49.6 x x x x
01. 8 1. 8 250 0.1410 58.0 x x x x
002.* 2 250 0.1169 77.0 x x x x
2.25 2.25 250 0.0968 121 x x x x x
100A@250Vac
10KA@125Vac
02.5 2.5 250 0.0811 130 x x x x x
02.8 2.8 250 0.0675 170 x x x x x
003.* 3 250 0.0593 200 x x x x x
03.2 3.2 250 0.0529 209 x x x x x
004.* 4 250
0.0311 76.1 x x x x x
005.* 5 250 0.0214 140 x x x x x
6.25* 6.25 250 0.0154 242 x x x x x
06.3 6.3 250 0.0154 242 x x x x x
200@250Vac
10KA@125Vac
007.* 7 250 0.0128 347 x x x x x
008.* 8 250 0 .0111 445 x x x x x
010.** 10 250
0.0083 760 x x x x
010. * 10 32 0.0083 760 x
012. 12 32 0.0065 120 0 x
015.** 15 125 0.0050 1870 x x x x
015. 15 32 0.0050 1870 x
300A@32Vac
020. 20 32 0.0022 9560 x
025. 25 32 0.0017 16500
x
030. 30 32 0.0012 26900 x
* 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.
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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