Axial lead & cartridge fuses – Littelfuse 325 Series User Manual
Page 2
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
3AB > Time Lag > 325/326 Series
Amp Code
Ampere
Rating
(A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
melting
I
2
t (A
2
sec)
Agency Approvals
PS
E
.010
0.01
250
100A@250Vac
3324.8000
0.00148
x
.031
0.031
250
332.5000
0.0110
x
.062
0.062
250
91.7000
0.0276
x
.100
0.1
250
33.5500
0.0870
x
.125
0.125
250
22.4500
0.100
x
.150
0.15
250
15.4500
0.143
x
.175
0.175
250
8.9200
0.220
x
.187
0.187
250
7.7250
0.230
x
.200
0.2
250
6.7700
0.213
x
.250
0.25
250
100A@250Vac
10KA@125Vac
10KA@125Vdc
4.4300
0.432
x
x
x
.300
0.3
250
3.2200
0.690
x
x
x
.375
0.375
250
2.1550
1.20
x
x
x
.400
0.4
250
1.9350
1.33
x
x
x
.500
0.5
250
1.3000
2.50
x
x
x
.600
0.6
250
0.9495
3.90
x
x
x
.700
0.7
250
0.7215
6.42
x
x
x
.750
0.75
250
0.6410
7.00
x
x
x
.800
0.8
250
0.5725
8.20
x
x
x
001.
1
250
0.3890
16.3
x
x
x
x
01.2
1.2
250
0.2860
22.0
x
x
x
x
1.25
1.25
250
0.2680
24.0
x
x
x
x
01.5
1.5
250
0.1975
40.1
x
x
x
x
01.6
1.6
250
0.1760
45.0
x
x
x
x
002.
2
250
0.1210
80.0
x
x
x
x
02.5
2.5
250
0.0835
136.0
x
x
x
x
x
02.8
2.8
250
0.0695
170.0
x
x
x
x
x
003.
3
250
0.0605
200.0
x
x
x
x
x
03.2
3.2
250
100A@250Vac
10KA@125Vac
0.0539
214.0
x
x
x
x
x
004.
4
250
400A@250Vac
10KA@125Vac
0.0761
9.71
x
x
x
x
005.
5
250
0.0522
25.0
x
x
x
x
6.25
6.25
250
0.0346
60.4
x
x
x
x
007.
7
250
0.0227
47.3
x
x
x
x
x
008.
8
250
0.0193
67.1
x
x
x
x
x
010.
10
250
0.0132
137
x
x
x
x
x
012.
12
250
400A@250Vac
10KA@125Vac
600A@125Vdc
0.0067
129
x
x
x
x
x
012.*
12
250
1500A@250Vac
0.0011
445
x
x
x
015.
15
250
400A@250Vac
10KA@125Vac
600A@125Vdc
0.0050
245
x
x
x
x
x
015.*
15
250
1500A@250Vac
0.0083
760
x
x
x
020.
20
250
400A@250Vac
10KA@125Vac
600A@125Vdc
0.0034
575
x
x
x
x
x
020.*
20
250
1500A@250Vac
0.0042
2500
x
x
x
025.**
25
250
1500A@250Vac
0.0032
4682
x
x
025.
25
250
400A@250Vac
10KA@60Vdc
600A@125Vdc
0.0024
1030
x
x
x
x
030.
30
250
0.0019
1690
x
x
x
x
Electrical Characteristic Specifications by Item
*Higher i
2
t version available. Please add suffix “D” to part numbers. For instance, 0325020.MXDP, 0326020.MXDP
I
2
t test at 10× rated current.
**Higher I
2
t version available. Please add suffix “W” to part numbers. For instance, 0325025.MXWP