Eaton FNQ-R-3 Fuse - Class CC, Time-Delay, 200 kAIC
Part Number: FNQ-R-3
Quick Summary
The FNQ-R-3 fuse provides time-delay current-limiting protection for line and control circuits in industrial equipment. Engineers often face nuisance trips during motor starts or transformer inrush, so selecting a device with a deliberate delay helps maintain uptime without compromising protection. CE marking and RoHS compliance support regulatory alignment while delivering robust performance with a high interrupt rating. With a 600 V rating, Class CC construction, and ferrule-end connections, it fits standard industrial panels and small control transformers, delivering reliable protection and straightforward installation that reduces commissioning time and total cost of ownership.
Product Information
Extended Description
FNQ-R-3 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 3 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-3
UPC
051712147088
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
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
Feature → Business Impact → Application: Time-delay, current-limiting design reduces nuisance trips during inrush events, enabling smoother equipment startups and less unplanned downtime in motor-driven systems. Application: line protection, small control transformers, industrial control panels. Feature → Business Impact → Application: Amperage rating of 3 A provides precise protection for medium-small circuits, minimizing conductor or component damage while avoiding unnecessary outages. Application: control circuits and branch circuits in automation panels. Feature → Business Impact → Application: 600 V voltage rating ensures compatibility with common low-voltage AC distributions in machinery and controls, simplifying panel design and wiring. Application: industrial controls, machine builds, and power distribution blocks. Feature → Business Impact → Application: 200 kAIC interrupt rating delivers robust short-circuit protection for high-fault environments, reducing the risk of follow-on damage and system-wide downtime. Application: industrial power centers and protection schemes with elevated fault currents. Feature → Business Impact → Application: Rejection style (non-indicating) fuse avoids mis-selection and simplifies field verification, improving maintenance planning. Application: branch circuits and field-installed protection in control cabinets. Feature → Business Impact → Application: Ferrule end x ferrule end connections enable fast, reliable installation with compatible tooling, supporting quicker cabinet assembly and fewer connection issues. Application: retrofit and new-build panels that use standard Bussmann ferrule-terminals. Feature → Business Impact → Application: Melamine tube construction provides durability and consistent performance in industrial environments, contributing to longer service life and lower replacement costs. Application: general-purpose protection in harsh or cluttered electrical panels. Feature → Business Impact → Application: Packaging type as Standard ensures compatibility with typical inventory and procurement cycles, reducing handling and stocking complexity. Application: OEM and system integrator stock management.
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FAQs
FNQ-R-3 ferrule-end devices install like-for-like in standard Bussmann terminations, using ferrule crimp tooling and proper torque on terminals. Ensure panel ratings align with a 600 V maximum and verify that the inrush profile matches a time-delay device. Confirm space and mounting clearance for a 1.5 inch length fuse, and maintain isolation when servicing.
Key specs include a 3 A amperage rating, 600 V voltage rating, Class CC construction, and 200 kAIC interrupt rating. It features time-delay operation for inrush tolerance, a non-indicating fuse indicator, and ferrule-end connections. These attributes support reliable protection in line and control circuits while minimizing nuisance trips.
Yes. The FNQ-R-3 is designed for small control transformers and line protection in industrial control applications. Its 3 A rating and 200 kAIC interrupt rating provide appropriate protection against short circuits, while the time-delay profile reduces nuisance trips during transformer inrush. Ferrule-end connections simplify integration with common panel wiring schemes.
The FNQ-R-3 carries CE marking and RoHS compliance, signaling adherence to essential health, safety, and environmental requirements. For regulated industrial environments, these certifications support regulatory acceptance, supplier qualification, and warranty coverage while aligning with green manufacturing practices.
The FNQ-R-3 reduces downtime by minimizing nuisance trips during inrush events and motor starts, while providing robust short-circuit protection with a high interrupt rating. Maintenance benefits include longer service life for protected circuits, easier field verification due to the rejection style design, and compatibility with standard Bussmann protective equipment, contributing to lower total cost of ownership.