Eaton FNQ-R-2-1/4 Fuse - 200 kAIC Current-Limiting Class CC
Part Number: FNQ-R-2-1/4
Quick Summary
FNQ-R fuse from Eaton provides time-delay protection for industrial control circuits. Engineers often wrestle with nuisance trips during transformer inrush or motor start, risking downtime and cascading faults. This device is CE Marked and RoHS compliant, with a 200 kAIC interrupt rating and a 600 V rating, ensuring regulatory adherence and reliable performance in demanding environments. Designed for line protection, small control transformers, and branch circuits, it delivers compact, rugged protection that supports maintenance efficiency and lower total cost of ownership in modern facilities.
Product Information
Extended Description
FNQ-R-2-1/4 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 2.25 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-2-1/4
UPC
051712496971
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
2.25 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
Feature a current-limiting high inrush time-delay design that tolerates inrush events while quickly interrupting damaging faults. Business impact: reduced nuisance trips, fewer false alarms, and improved line uptime in industrial controls and transformer circuits. Application: suitable for line protection, small control transformers, and branch circuits, enabling safer, more reliable panel operations. Feature b: rejection-style design prevents incorrect fuse substitution, reducing maintenance errors and spare-parts costs in rugged plant environments. Application: panel assemblies and critical control loops where correct replacement is essential. Feature c: high 200 kAIC interrupt rating provides robust fault-current handling, protecting equipment during short-circuits and energy surges. Application: industrial machinery, motor drives, and distributed power in manufacturing lines. Feature d: 600 V voltage rating with ferrule-end connections offers easy, secure installation and compliance with standard conduit and panel hardware. Application: quick retrofits and new installs in control panels. Feature e: melamine tube construction and Class CC architecture support compact, durable protection for dense control cabinets. Application: high-density electrical protection in automated lines.
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FAQs
Use ferrule-end connections for secure crimping, verify the amperage matches the protected circuit (2.25 A), and ensure panel space accommodates the 1.5 in length and 0.41 in width. Verify the rejection-style fuse prevents mis-substitution during maintenance.
It is a time-delay, current-limiting Class CC fuse with 2.25 A rating and 600 V capability, offering inrush tolerance while delivering fast fault interruption, reducing transformer and transformer-related faults in control circuits.
Yes. The FNQ-R-2-1/4 is CE marked and RoHS compliant, aligning with European and global environmental and safety requirements for electrical protection devices.
As a time-delay fuse, it allows brief inrush currents up to the designed threshold, preventing unnecessary trips during normal operation, while achieving rapid interruption when faults persist or exceed the rating.
Select the 2.25 A rating for the target transformer or circuit, leverage the rejection-style feature to minimize downtime due to incorrect substitutions, and rely on the 200 kAIC rating for fault robustness—all contributing to lower maintenance costs and improved system reliability.