Eaton FNQ-R-3/10 Fuse - Current-Limiting 200 kAIC
Part Number: FNQ-R-3/10
Quick Summary
The FNQ-R-3/10 fuse from Eaton provides time-delay, current-limiting protection for line protection and small control transformers. Engineers often face nuisance trips from startup surges and must balance protection with uptime. This device carries CE marking and Eaton’s RoHS compliance verification, offering confidence in regulated environments, and it delivers a 200 kAIC interrupt rating for robust fault handling. With its Class CC, current-limiting design, and rejection-style characteristics, it simplifies correct fuse placement and reduces mis-swaps. The FNQ-R-3/10 integrates seamlessly into industrial control panels and branch circuits, while aligning with Bussmann series families for easier stocking, replacement, and supplier consistency. This combination helps shorten project timelines and minimize downtime in electrical protection applications.
Product Information
Extended Description
FNQ-R-3/10 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 0.3 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-3/10
UPC
051712496902
EAN
5027590449748
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.02 lb
Warranty
Not Applicable
Compliances
CE Marked
Type
Current-limiting high inrush time-delay fuse
Special features
Rejection style
Application
Line protection, small control transformers, industrial control, branch circuits
Amperage Rating
0.3 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
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series FNQ-R Class CC Fuse Data Sheet No. 1014
Time-delay current-limiting design enables selective protection by riding through startup surges while maintaining fast interruption for faults. This improves reliability in line protection, small control transformers, and branch circuits, and supports predictable coordination in industrial control panels. Rejection-style construction prevents accidentally installing an incompatible fuse, reducing downtime and service calls in safety-critical cabinets. The 600 V rating with a 200 kAIC interrupt rating ensures safe interruption of high-energy faults, protecting downstream equipment and wiring in industrial feeders and motor control centers. Ferrule-end connections provide secure, vibration-resistant installation, minimizing loosening under operational loads in panel boards and transformer protection blocks. Its compact 1.5 in length and lightweight 0.02 lb frame saves panel space and simplifies retrofits in crowded industrial spaces. CE marking and available RoHS verification streamline compliance and sourcing within Bussmann Series catalogs.
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FAQs
FNQ-R-3/10 fuses are designed with ferrule-end x ferrule-end connections and the Class CC current-limiting, time-delay characteristics ideal for line protection, small control transformers, industrial control panels, and branch circuits. This configuration supports straightforward panel mounting, reliable terminal connections, and easy integration with standard Bussmann series components for consistent stocking and maintenance.
Key specs include a 0.3 A amperage rating, 600 V voltage rating, Class CC current-limiting with time-delay behavior, and a 200 kAIC interrupt rating. The fuse features a non-indicating indicator, ferrule-end connections, and a fast response time of 12 seconds at 200% inrush. These values enable precise protection while tolerating startup surges in controlled applications.
Yes, the FNQ-R-3/10 is CE marked, meeting essential European safety requirements. A RoHS compliance assessment is available via Eaton’s RoHS tool to verify restricted-substance conformance. This helps maintain regulatory compliance in regulated industries and supports green procurement initiatives without sacrificing protection performance.
Industries leveraging industrial control panels, line protection, and transformer protection benefit the most. Applications include small control transformers, branch circuits, and general electrical protection in manufacturing, automation, and process facilities. The FNQ-R-3/10’s combination of time-delay behavior and high interrupt rating makes it suitable for environments with inrush currents and demanding fault conditions.
The 200 kAIC interrupt rating allows the fuse to safely interrupt high-energy fault currents without escalating damage to conductors or equipment downstream. This reduces nuisance outages from faults, supports reliable power delivery to critical loads, and aligns with rigorous electrical protection standards in industrial facilities and control systems.