Eaton FNA-1 Bussmann Time-Delay Fuse - CE Marked
Part Number: FNA-1
Quick Summary
The Eaton FNA-1 fuse provides time-delay protection for inductive and electronic circuits in control panels. This helps prevent nuisance trips during motor startups and transient surges, reducing downtime and extending equipment life. The device is CE Marked, aligning with international safety requirements, and its dual-element construction supports reliable cycling under fluctuating loads. With a 1 A rating and 250 V operation, the FNA-1 is well-suited for small-control circuits and sensing networks, while ferrule-end connections simplify wiring and improve termination durability. This fuse integrates neatly with Bussmann-series components, enabling standardization across panels, assemblies, and replacements, delivering predictable performance and lower maintenance costs for OEMs and system integrators.
Product Information
Extended Description
FNA-1 Eaton: Eaton Bussmann series FNA fuse, Time-delay fuse, Inductive load circuits, Electronic circuits, 1 A, Dual, Non-indicating, Ferrule end x ferrule end, 200 kAIC at 250 Vac, 10 kAIC at 125 Vac, Silver-plated pin, Standard, 250 V
Product Name
Eaton Bussmann series FNA fuse
Catalog Number
FNA-1
UPC
051712713436
Product Length/Depth
1.5 in
Product Height
0.406 in
Product Width
0.406 in
Product Weight
1.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
1 A
Interrupt rating
10 kAIC at 125 Vac 200 kAIC at 250 Vac
Voltage rating
250 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
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - FNA-1
FNA-1~FUSETRON DUAL-ELEMENT INDICATING
Datasheet - FNQ-30
Feature The time-delay, dual-element design mitigates nuisance interruptions on inductive starts, enabling smoother operations. Benefit Reduced downtime and extended equipment life, especially in motorized and solenoid-driven applications. Application Control panels, motor starters, and sensing networks gain reliable protection without sacrificing startup performance. Feature 1 A amperage rating at 250 V supports compact control circuits while maintaining robust protection. Benefit Right-sized protection minimizes overdesign and reduces spare part inventory. Application Suitable for small-control loops in automation cabinets and PLC interfaces. Feature Non-indicating, ferrule-end construction with silver-plated pins. Benefit Quick, vibration-resistant terminations and durable long-term contact reliability in harsh environments. Application Panel wiring where reliable terminations are essential. Feature High interrupt ratings of 10 kAIC at 125 Vac and 200 kAIC at 250 Vac. Benefit Enhanced surge handling and improved fault clearance for downstream equipment. Application Protection for drives, contactors, and feeders in industrial environments. Feature Standard packaging and Bussmann-series compatibility. Benefit Simplified procurement and faster replacement with existing inventory of Bussmann components. Application Ideal for OEM panels and modular lineups with common spares. Feature Silver-plated pins and ferrule-terminations. Benefit Corrosion resistance and consistent performance across maintenance cycles. Application Useful in environments with temperature cycling and assembling tolerances.
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FAQs
Install the FNA-1 with ferrule-end terminations into standard Bussmann-series holders or panels using ferrule-compatible crimp contacts. Ensure the wiring gauge matches the ferrule end size and that silver-plated pins are clean and seated fully to prevent intermittent connections. Fasten securely to minimize vibration effects, and route conductors to avoid heat sources and sharp edges. This reduces contact wear and enhances long-term reliability in automation cabinets.
The FNA-1 is rated for 1 A at 250 V with interrupt ratings of 10 kAIC at 125 Vac and 200 kAIC at 250 Vac. This combination provides reliable overload protection for inductive and electronic loads while offering strong fault-current handling. The time-delay feature tolerates brief surge currents during startup without nuisance trips, preserving downstream devices.
Yes. The FNA-1 is designed as a time-delay, dual-element fuse optimized for inductive loads and electronic circuits. Its delaying characteristic accommodates startup in motor starters and solenoids, reducing nuisance tripping and allowing controlled inrush without compromising protection for downstream PLCs and sensors.
The FNA-1 is CE Marked, indicating compliance with international safety and electrical standards. For projects targeting European and other global markets, CE marking supports regulatory approval, reduces risk during audits, and aligns with supplier qualification requirements in multinational panels and assemblies.
The FNA-1 can lower total cost of ownership by reducing nuisance trips, minimizing unplanned downtime, and simplifying spares management due to standardization within the Bussmann-series. Its durability and reliable startup performance translate to fewer maintenance interventions and longer service life for control panels and automation equipment.