Littelfuse 322 Series User Manual
Axial lead & cartridge fuses
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
3AB > Very Fast-Acting > 322/332 Series
322/332 Series Lead-free 3AB, Very Fast-acting Fuse
Agency Approvals
Features
Applications
Agency
Agency File Number
Ampere Range
E10480
12A - 30A
E10480
1A - 10A
PS
E
NBK080306-
JP1021A/B
1A - 10A
1A - 30A
Electrical Characteristics for Series
The 3AB Very Fast-Acting Fuse for protection of Silicon
Controlled Rectifiers and similar solid-state devices.
% of Ampere
Rating
Ampere Rating
Opening Time
100%
1 – 30
4 hours, Minimum
250%
1 – 10
.2 second, Maximum
12 – 30
1 sec.ond, Maximum.
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
001.
1
250
100A@250Vac
100A@125Vdc
200A@72Vdc
0.0927
0.100
x
x
x
1.25
1.25
250
0.0804
0.156
x
x
x
002.
2
250
0.0416
0.560
x
x
x
003.
3
250
0.0245
1.890
x
x
x
004.
4
250
0.0179
3.360
x
x
x
005.
5
250
0.0128
6.250
x
x
x
006.
6
250
0.0117
8.208
x
x
x
007.
7
250
0.0108
10.58
x
x
x
008.
8
250
0.0088
16.45
x
x
x
009.
9
250
0.0077
20.66
x
x
x
010.
10
250
0.0073
24.0
x
x
x
012.
12
65
200A@65Vac
1000A@65Vdc
0.0515
60.0
x
x
015.
15
65
0.0043
90.0
x
x
020.
20
65
0.0034
192.0
x
x
025.*
25
65
0.0029
325.0
x
x
030.*
30
65
0.0023
540.0
x
x
Electrical Characteristic Specifications by Item
* Ratings from 1A to 10A are available for 332 series
* Ratings from 12A to 30A are available for 322 series, these ratings are RoHS compliant version.
• In accordance with UL
Standard 248-14
• Available in cartridge
format only
• RoHS compliant and
Lead-free
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
PS
E
Description