Eaton FNA-4-1/2 Fuse - Time-Delay Dual-Element CE Marked
Part Number: FNA-4-1/2
Quick Summary
Eaton FNA-4-1/2 fuse protects inductive and electronic loads in control panels. In compact installations, users often contend with nuisance trips and inconsistent protection that disrupts uptime. CE Marked compliance signals alignment with European safety standards, while the time-delay, dual-element design delivers reliable overload handling and cycling across changing load profiles. This fuse also supports easy procurement and broad compatibility, helping with panel standardization and reduced maintenance costs while delivering robust protection for motor drives, relays, and power supplies.
Product Information
Extended Description
FNA-4-1/2 Eaton: Eaton Bussmann series FNA fuse, Time-delay fuse, Inductive load circuits, Electronic circuits, 4.5 A, Dual, Non-indicating, 10 kAIC at 125 Vac, 200 kAIC at 250 Vac, Silver-plated pin, Standard, 250 V
Product Name
Eaton Bussmann series FNA fuse
Catalog Number
FNA-4-1/2
UPC
051712713573
EAN
5027590060110
Product Length/Depth
0.35 in
Product Height
1.46 in
Product Width
0.35 in
Product Weight
0.1 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
4.5A
Interrupt rating
200 kAIC at 250 Vac 10 kAIC at 125 Vac
Voltage rating
250 V
Material
Silver-plated pin
Number of elements
Dual
Packaging type
Standard
Fuse indicator
Non-indicating
Special features
Superior overload and cycling capabilities
FNA-4-1/2~FNA-4-1-2~FUSETRON DUAL-ELEMENT INDICATING
FNA-4-1/2~FNA-4-1-2~FUSETRON DUAL-ELEMENT INDICATING
Eaton Specification Sheet - FNA-4-1/2
Time-delay performance is engineered to tolerate temporary surge currents common with inductive loads, reducing unnecessary outages and improving equipment uptime. This translates to measurable business gains in productivity and reduced spare-part wear, especially in motor control circuits and programmable logic controller power rails. The dual-element construction provides superior overload protection and cycling capabilities, extending fuse life and minimizing thermal stress on upstream components in demanding industrial environments. With a 4.5A rating at 250V, it offers ample headroom for small to medium control circuits while preserving fast interruption for fault conditions, enhancing system reliability and safety. Silver-plated pins ensure low contact resistance and dependable connections in industrial fuse holders, supporting long service life in harsh environments. The standard packaging and compact form factor (0.35 in x 0.35 in x 1.46 in) simplify installation in tight panels and retrofit projects, reducing panel depth and easing retrofits. CE marking confirms compliance with essential safety standards, aiding regulatory audits and cross-border shipments. Non-indicating fuse indicators keep point-of-use costs down while delivering mission-critical protection for continuous processes and assembly lines.
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FAQs
Install the FNA-4-1/2 into compatible Bussmann series fuse holders with silver-plated pins. The compact footprint (0.35 in x 0.35 in x 1.46 in) and standard packaging simplify mounting in tight panel spaces and streamline retrofits.
It is rated for 4.5A at 250V and provides high interrupt ratings: 200 kAIC at 250V and 10 kAIC at 125V, offering strong fault current handling across common control circuits and inductive loads.
Best used in inductive load circuits and electronic power rails within control panels, motor drives, relays, and power supplies, where time-delay protection reduces nuisance trips without sacrificing safety.
Yes, the fuse is CE Marked, indicating compliance with essential European safety standards for electrical protection components.
The fuse has a dual-element construction with silver-plated pins, a standard packaging type, and dimensions of 0.35 in x 0.35 in x 1.46 in, weighing about 0.1 lb, facilitating easy mounting and replacement.