Eaton FNQ-R-12 Fuse - Class CC Time-Delay Rejection
Part Number: FNQ-R-12
Quick Summary
The Eaton FNQ-R-12 fuse provides time-delay current limiting for line protection in small control transformers. Engineers frequently struggle with nuisance tripping caused by inrush during startup and energizing industrial circuits. This Bussmann series device is CE marked and RoHS compliant, with a 200 kAIC interrupt rating at 600 V to ensure fast fault clearance and minimal downstream damage. By aligning this fuse with standard Bussmann protection strategies, you gain reliable circuit protection, reduced maintenance costs, and regulatory peace of mind. The FNQ-R-12 supports straightforward integration in control panels, leveraging ferrule-ended connections and a compact form factor for scalable protection across multiple channels.
Product Information
Extended Description
FNQ-R-12 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 12 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-12
Model Code
CLASS CC TIME DELAY REJECTION FUSE
UPC
051712497107
EAN
5027590092265
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 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
12 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 series Fuseology
Bussmann series FNQ-R Class CC Fuse Data Sheet No. 1014
Feature: Time-delay current-limiting Class CC design. Business Impact: Manages brief startup surges without sacrificing fault protection, reducing nuisance trips and production downtime. Application: Suitable for line protection in industrial control circuits and small control transformers. Feature: 12 A amperage rating at 600 V with 200 kAIC interrupt rating. Business Impact: Provides robust short-circuit protection for typical low-voltage control panels, limiting damage and speeding recovery after faults. Application: Branch circuits and control transformer protection in automation cabinets. Feature: Rejection style with ferrule end connections. Business Impact: Prevents cross-application misfitting and enables fast, error-free panel installation. Application: Standard Bussmann line installations in machine controls. Feature: Melamine tube construction, 1.5 in length, 0.41 in width. Business Impact: Delivers reliable mechanical fit in dense panel layouts, improving mounting efficiency and reducing spare parts inventory. Application: Compact fuse assemblies in crowded control enclosures. Feature: Compliance and packaging attributes. Business Impact: CE marked and RoHS compliant for European regulatory alignment; standard packaging supports scalable procurement. Application: Global manufacturing lines requiring consistent component sourcing and traceability.
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FAQs
To install the FNQ-R-12, verify the panel cutout matches the ferrule-end terminals and orient the fuse so the ferrule ends mate cleanly with the bus bars or terminal blocks. Secure each ferrule end with the recommended torque to avoid loose connections, and confirm the fuse is seated fully before energizing. Use compatible Bussmann panels for a reliable fit and consistent protection performance.
The FNQ-R-12 offers a 12 A rating and time-delay (inrush-tolerant) characteristics, enabling it to survive startup surges common with small control transformers. Its current-limiting feature helps contain fault currents, protecting transformers and downstream circuitry, while the 600 V rating aligns with standard low-voltage control environments in automation systems.
Key specs include a 12 A amperage rating, 600 V voltage rating, a 200 kAIC interrupt rating, and Class CC construction with time-delay protection. It uses ferrule end connections and a non-indicating status. These attributes support reliable protection in branch circuits and industrial control panels while tolerating legitimate startup surges.
Yes. The FNQ-R-12 is CE marked and RoHS compliant, aligning it with European regulatory requirements for electrical safety and restricted hazardous substances. This compliance supports broader market access and helps ensure environmental responsibility in your protection strategy, without compromising performance in typical industrial control applications.
FNQ-R-12 delivers steady protection with inrush-tolerant behavior, reducing nuisance trips and unplanned downtime. Its high interrupt rating and robust construction minimize downstream damage during faults, lowering maintenance costs and extending component life. A compact, ferrule-end design simplifies installation and replacement, improving overall line reliability and uptime.