Eaton FNA-1-1/4 Fuse Time-Delay Dual Element 250V CE Marked
Part Number: FNA-1-1/4
Quick Summary
The Eaton FNA-1-1/4 fuse is a time-delay, dual-element device designed to protect inductive loads and electronic circuits in control panels. Engineers often contend with nuisance trips and cycling when protecting fast-changing loads; this fuse mitigates those issues with its slow-blow characteristics. CE marking confirms European regulatory compliance, and the unit’s high interrupt ratings—200 kAIC at 250 VAC and 10 kAIC at 125 VAC—support reliable protection in demanding environments. Its ferrule-end connections and silver-plated pins simplify installation and improve contact reliability, while a compact footprint fits crowded control panels. By combining dependable protection with easy installation, the FNA-1-1/4 helps minimize downtime and simplify maintenance budgeting for industrial automation projects.
Product Information
Extended Description
FNA-1-1/4 Eaton: Eaton Bussmann series FNA fuse, Time-delay fuse, Inductive load circuits, Electronic circuits, 1.25 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-1-1/4
UPC
051712713450
EAN
5027590425810
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
1.25 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-1-1/4
FNA-1-1/4~FNA-1-1-4~FUSETRON DUAL-ELEMENT INDICATING
Feature → Time-delay dual-element design; Business Impact → Reduces nuisance tripping and enables safe cycling on inductive loads; Application → Ideal for motor starters and solenoids in control panels. Feature → 1.25 A amperage rating; Business Impact → Prevents unnecessary current draw while protecting sensitive electronics; Application → Suitable for low-current control circuits and electronic modules. Feature → High interrupt ratings (200 kAIC at 250 VAC, 10 kAIC at 125 VAC); Business Impact → Safe and reliable fault interruption in demanding environments; Application → Heavy-duty industrial panels and power distribution boards. Feature → Ferrule-end x ferrule-end connections with standard packaging; Business Impact → Easy, tool-free installation and consistent wiring practices; Application → Replacement in existing Bussmann series fuse holders. Feature → Silver-plated pins and non-indicating fuse indicator; Business Impact → Improved contact reliability and reduced maintenance checks; Application → Electronic circuits where quick status visualization is not required. Feature → CE compliance; Business Impact → Meets European regulatory requirements, reducing compliance risk; Application → European market installations and multinational deployments.
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FAQs
The FNA-1-1/4 is designed with ferrule-end connections to fit standard Bussmann-style fuse holders and control panel wiring. It’s ideal for replacement in existing Eaton Bussmann or similar ferrule-based fuse holders, ensuring straightforward retrofits and consistent electrical shares.
Amperage rating is 1.25 A with a voltage rating of 250 V. It provides high interrupt ratings of 200 kAIC at 250 VAC and 10 kAIC at 125 VAC, and features a dual-element time-delay design suitable for inductive loads and electronic circuits.
Yes, the part is CE marked, confirming compliance with applicable European regulations, which helps reduce regulatory risk in EU-based installations and multinational deployments.
It is well-suited for inductive loads such as motor starters and solenoids, as well as electronic control circuits within control panels, where time-delay protection minimizes nuisance trips while still interrupting fault currents effectively.
The FNA-1-1/4 is non-indicating, so periodic inspection of circuit protection and status relies on system alerts. Replace with an identical 1.25 A, 250 V, dual-element, ferrule-end fuse to maintain protection, and verify connections for ferrule integrity to ensure reliable operation.