Eaton FNQ-R-1/2 Fuse - 0.5 A Time-Delay Class CC, 200 kAIC
Part Number: FNQ-R-1/2
Quick Summary
The Eaton FNQ-R-1/2 fuse provides time-delayed current-limiting protection for small control transformers and branch circuits. Nuisance trips and limited interruption ratings can disrupt production and raise maintenance costs. CE marked and RoHS compliant, with a 600 V rating and a 200 kAIC interrupt capability, it meets essential industrial protection standards. As part of the Eaton Bussmann Class CC family, FNQ-R fuses deliver reliable line protection for industrial panels and transformers, supporting safer, more efficient installations. This compact 0.5 A device reduces spare parts inventory and streamlines compliance documentation for audits. Its ferrule-end connection simplifies field installation and promotes reliable, vibration-resistant mounting in compact control panels.
Product Information
Extended Description
FNQ-R-1/2 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 0.5 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-1/2
UPC
051712147019
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Type
Current-limiting high inrush time-delay fuse
Special features
Rejection style
Application
Line protection, small control transformers, industrial control, branch circuits
Amperage Rating
0.5 A
Class
Class CC
Interrupt rating
200 kAIC
Fuse indicator
Non-indicating
Connection
Ferrule end x ferrule end
Response time
12 sec at 200%
Material
Melamine tube
Packaging type
Standard
Voltage rating
600 V
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Bussmann Full Line Catalog
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Bussmann series Fuseology
Bussmann series FNQ-R Class CC Fuse Data Sheet No. 1014
Feature 1: Time-delay, current-limiting design delivers controlled inrush handling while protecting circuits. Benefit: Reduces nuisance trips during transformer energization, improving uptime in automated equipment and minimizing unscheduled maintenance. Application: Small control transformers and branch circuits in industrial controls. Feature 2: Rejection-style (non-indicating) fuse with ferrule-end connections. Benefit: Prevents misinsertion and ensures quick, secure installation in standard Bussmann holders. Application: Panel boards and control cabinets where serviceability matters. Feature 3: 0.5 A rating with 600 V operation and 200 kAIC interrupt capacity. Benefit: Provides robust short-circuit protection for line circuits and transformers without compromising normal operation. Application: Industrial protection scenarios requiring high fault current handling. Feature 4: Class CC construction with melamine tube and standard packaging. Benefit: Durable, compact form factor facilitates easy replacement and inventory management. Application: Original equipment and retrofit projects in automation and electrical protection. Feature 5: Compliance and documentation support. Benefit: CE Marked and RoHS compliant aids in regulatory audits and traceability. Application: Compliance-driven deployments in machinery and panels. Feature 6: Lead time and compatibility advantages. Benefit: Ferrule-end x ferrule-end connection and 1.5 in length simplify installation in existing Bussmann fuse holders. Application: Retrofit and new installations in industrial control systems.
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FAQs
The FNQ-R-1/2 uses ferrule-end connections for quick, secure insertion in standard Bussmann fuse holders. Ensure the panel is de-energized before replacement, verify the 0.5 A rating matches the circuit load, and replace with the same FNQ-R-1/2 model to maintain the 600 V rating and 200 kAIC interrupt capability. Proper mounting and clearances improve reliability in harsh environments.
This fuse provides a 200 kAIC interrupt rating, meaning it can safely interrupt high fault currents without sustaining damage. For industrial lines and transformers, this capability reduces the risk of arc flash and equipment damage during short-circuits, supporting safer, more reliable protection in automation decks and panel boards.
Yes. With a 0.5 A rating, time-delay performance, and current-limiting characteristics, it handles transformer inrush while limiting fault energy. Its Class CC, 600 V rating, and ease of maintenance make it well suited for line protection, small control transformers, and branch circuits in industrial control applications.
The FNQ-R-1/2 is CE marked and RoHS compliant, ensuring compliance with European product safety, environmental, and performance standards. This helps with regulatory approvals, supplier quality requirements, and audit readiness in machinery, panels, and automation projects.
By reducing nuisance trips through time-delay protection and delivering high fault current handling, the FNQ-R-1/2 minimizes unplanned downtime and extends transformer life. The reliability of the Bussmann Class CC family also lowers spare parts inventory and simplifies compliance documentation, delivering tangible uptime and operating cost benefits.