Eaton FNA-6-1/4 Fuse - 6.25A, 10 kAIC at 125V CE
Part Number: FNA-6-1/4
Quick Summary
Eaton FNA-6-1/4 fuse delivers reliable protection for inductive loads in control panels and automation circuits. This time-delay, dual-element fuse minimizes nuisance trips and extends equipment life by tolerating inrush currents common in motors and drives. It carries CE marking for compliance in international deployments and supports robust control-panel protection across industrial environments. Designed for Bussmann series compatibility, it combines compact 1.5 inch length with ferrule-end connections and silver-plated pins to simplify installation. For engineers balancing uptime, safety, and cost, the FNA-6-1/4 provides a solid, standards-aligned choice for electrical protection and circuit control applications.
Product Information
Extended Description
FNA-6-1/4 Eaton: Eaton Bussmann series FNA fuse, Time-delay fuse, Inductive load circuits, Electronic circuits, 6.25 A, Dual, Non-indicating, Ferrule end x ferrule end, 10 kAIC at 125 Vac, Silver-plated pin, Standard, 125 V
Product Name
Eaton Bussmann series FNA fuse
Catalog Number
FNA-6-1/4
UPC
051712713610
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.2 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
6.25A
Interrupt rating
10 kAIC at 125 Vac
Voltage rating
125 V
Material
Silver-plated pin
Number of elements
Dual
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Superior overload and cycling capabilities
FNA-6-1/4~FNA-6-1-4~FUSETRON DUAL ELEMENT
FNA-6-1/4~FNA-6-1-4~FUSETRON DUAL ELEMENT
Eaton Specification Sheet - FNA-6-1/4
Feature: Time-delay dual-element construction → Business Impact: Superior overload management and cycling capability, reducing unplanned downtime in automated lines. Application: Inductive and electronic circuits where inrush is typical, such as motor starters and servo drives. Feature: 125 V rating with 6.25A current capacity → Business Impact: Protects sensitive electronics while handling standard control voltages, improving device life and reducing replacement costs. Application: Control panels and automation equipment requiring precise current protection at standard electrical potential. Feature: 10 kAIC interrupt rating at 125 Vac → Business Impact: High fault current tolerance ensures safer disconnects and minimizes conductor damage, lowering risk of panel fires. Application: Industrial protection in equipment with potential for large fault currents. Feature: Ferrule-end x ferrule-end connections and silver-plated pins → Business Impact: Easy, reliable field assembly with durable contacts, decreasing installation time and contact resistance. Application: Panel wiring, modular assemblies, and harnesses in automation systems. Feature: CE Marked and standard packaging → Business Impact: Facilitates global procurement and regulatory compliance, simplifying stocking and traceability. Application: International projects and multi-site deployments across manufacturing plants.
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FAQs
Install the FNA-6-1/4 in 125 Vac circuits using ferrule-end terminals. Verify system voltage and ensure the circuit is de-energized before servicing. The dual-element, time-delay design supports inductive inrush, reducing nuisance trips. Use standard Bussmann series fuse holders compatible with ferrule-end connections for reliable contact and easy replacement during maintenance.
The 6.25A rating matches typical current draw while the 10 kAIC interrupt rating provides a high fault current tolerance, enabling safe disconnection during short-circuit events. The time-delay/dual-element design accommodates inrush from inductive loads such as motors, reducing premature failures and extending drive longevity without compromising protection.
Yes. The FNA-6-1/4 is purpose-built for inductive and electronic loads found in control panels and automation equipment. Its 125 V rating, CE marking, and ferrule-end connections simplify panel integration, while the dual-element design supports reliable operation across cycling and overload conditions common in automation environments.
This fuse is CE marked, indicating compliance with relevant European safety and performance standards. The 125 V rating and 10 kAIC interrupt capability meet industry expectations for industrial protection devices. Always verify local regulatory requirements and consult Eaton’s datasheet for the latest certification scope and test conditions.
The dual-element, time-delay design provides controlled nuisance tripping and extended cycling life for inductive loads, reducing downtime and maintenance costs. Silver-plated pins ensure low contact resistance over time, improving reliability in high-use panels. Together with CE compliance, these features support lower total cost of ownership in global manufacturing environments.