Littelfuse 328 Series User Manual
Axial lead & cartridge fuses, 3ab > high i, T > 328 series
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
3AB > High I
2
t > 328 Series
328 Series, Lead-Free 3AB, High Surge Withstanding Fuse
Agency Approvals
Features
• High surge withstanding
capability
– 20 hits of 10kA 8/20μs
surge
– Meets ANSI/IEEE
C62.41, Category
C-High
– Meets US Dept of
Energy (DOE) MSSLC/
CBEA street lighting
and parking lot
lighting, elevated level
• Small form factor
(6.3×32mm) with
cartridge and axial-lead
package options
• Breaking capacity:
200A@300VAC,
200A@100VDC
• Lead-free, RoHS
compliant, halogen-free
• Compliant with UL248-
14 and NFPA 70
(NEC) primary fusing
requirements
• Operating temperature:
–55°C to 125 °
Applications
Electrical Characteristics for Series
Agency
Agency File Number
Ampere Range
TUV
T5026058201
21A
E10480
21A
% of Ampere Rating
Opening Time
100%
4 hours, minimum
200%
120 sec., maximum
The – is a 300VAC rated, 10kA surge withstanding,
6.3×32mm ceramic fuse, designed in accordance to
UL248-14 Standard, provided in cartridge and axial-lead
packages.
Commercial and outdoor LED luminaries
Outdoor electronics and electrical equipment.
Surge protection for telecom application.
Description
Electrical Characteristic by ltem
Amp Rating
(A)
Voltage Rating
(VAC)
Interrupting
Rating
Surge
Rating
Nominal Cold
Resistance
(Ohms)
Nominal melting
I
2
t (A
2
sec)
Agency Approvals
TUV
21
300
200A@300VAC
200A@100VDC
1.2/50 - 8/20µs,
20kV/10kA 20
hits
0.0042
4,800
X
X
TUV
Additional Information