Eaton FNA-1-8/10 Fuse - 10 kAIC at 125 Vac / 200 kAIC at 250 Vac
Part Number: FNA-1-8/10
Quick Summary
The Eaton Bussmann FNA fuse provides time-delay protection for inductive and electronic circuits in control panels. Users often face nuisance trips and downtime when protection is too aggressive or undersized for startup surges; this fuse is engineered to tolerate brief inrush while safeguarding critical loads. It is CE marked, aligning with European safety requirements, and designed for robust overload endurance and cycling performance. With ferrule-end connections and a dual-element design, it delivers reliable protection in a compact form, simplifying wiring and service. This combination supports efficiency and compliance across automation and electrical protection applications, helping engineers reduce maintenance costs while improving equipment uptime.
Product Information
Extended Description
FNA-1-8/10 Eaton: Eaton Bussmann series FNA fuse, Time-delay fuse, Inductive load circuits, Electronic circuits, 1.8 A, Dual, Non-indicating, Ferrule end x ferrule end, 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-1-8/10
UPC
051712713481
Product Length/Depth
1.5 in
Product Height
0.406 in
Product Width
0.406 in
Product Weight
3 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
1.8A
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
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - FNA-1-8/10
Feature: Time-delay protection for inductive loads. Business Impact: Reduces nuisance tripping during motor startups and electronic transients, lowering downtime and maintenance costs. Application: Control panels, motor starters, and power supplies benefit from smoother operation without sacrificing protection. Feature: 1.8A amperage rating with dual elements. Business Impact: Precise overload protection that preserves control circuits while extending component life. Application: Small control circuits and logic modules in automation equipment. Feature: High interrupt ratings of 10 kAIC at 125 Vac and 200 kAIC at 250 Vac. Business Impact: Enhanced fault tolerance and safer isolation during short circuits, improving panel safety margins. Application: Industrial switchgear, bussing, and circuit protection assemblies. Feature: Ferrule end connections with silver-plated pins. Business Impact: Reliable, low-resistance connections that resist corrosion and vibration, lowering maintenance. Application: Panel wiring harnesses and modular protection blocks. Feature: Standard packaging and CE compliance. Business Impact: Easier stocking, consistent lead times, and streamlined procurement for compliance-driven projects. Application: OEM assemblies, system rebuilds, and service contracts. Feature: Superior overload and cycling capabilities. Business Impact: Longer fuse life under frequent cycling, reducing replacement costs and spares investment. Application: Repetitive start-stop loads and cycling power supplies in automation lines.
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FAQs
Compatibility hinges on ferrule-end connections and standard Bussmann series footprints. The FNA-1-8/10 uses ferrule-end terminals and silver-plated pins, with a 1.5 inch length and 0.406 inch width/height, suitable for control panels, motor drives, and power-supply modules that accept similar form-factor fuses. Verify panel cutouts and wire harness compatibility before replacement to ensure secure mounting and optimal heat dissipation.
The fuse is rated for 1.8 A with an interrupt capability of 10 kAIC at 125 Vac and 200 kAIC at 250 Vac. It operates at a 250 V rating and features dual elements for enhanced overload handling. These specs support reliable protection for inductive and electronic circuits in automation equipment while tolerating startup surges without nuisance trips.
Yes. As a time-delay fuse, it accommodates brief startup surges typical of inductive motors while maintaining protection for downstream electronics. The 1.8 A rating, coupled with high interrupt ratings, ensures robust protection without premature clearing, reducing downtime and extending the life of downstream components in motor control circuits.
The FNA-1-8/10 is CE Marked, aligning with European safety requirements. While other regional certifications are not listed in the provided data, CE marking indicates conformity with essential safety and performance standards, which is important for compliance-driven projects and interregional deployments.
The time-delay design reduces nuisance trips during startup and transient events, lowering downtime costs. Its high cycling tolerance and dual-element construction extend service life, reducing replacement frequency and spare parts needs. Overall, the FNA-1-8/10 offers lower total cost of ownership in panels and control systems with frequent switching and surge conditions.