Eaton FNQ-R-2-1/2 Fuse - Time-Delay Class CC, 200 kAIC 600V
Part Number: FNQ-R-2-1/2
Quick Summary
The Eaton FNQ-R-2-1/2 fuse protects line circuits and small control transformers in industrial panels. Choosing fuses that trip too late or too early disrupts uptime and complicates maintenance, especially in high-demand environments. It carries CE marking and RoHS compliance, with a 600 V rating and a 200 kAIC interrupt capability to meet demanding safety standards. This Class CC, current-limiting time-delay fuse is engineered for reliable discrimination in branch circuits, motor control, and transformers. By integrating with Eaton Bussmann Series offerings, it delivers consistent protection, reduces nuisance trips, and supports scalable, cost-effective protection strategies across the plant.
Product Information
Extended Description
FNQ-R-2-1/2 Eaton: Eaton Bussmann Series Class CC fuse, FNQ, time-delay, dual-element current limiting fuse, 2.5 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series FNQ-R fuse
Catalog Number
FNQ-R-2-1/2
UPC
051712147071
EAN
5027590449694
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
2.5 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
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series FNQ-R Class CC Fuse Data Sheet No. 1014
Feature: Current-limiting high inrush time-delay design → Business Impact: Minimizes fuse nuisance trips during motor startups while protecting wiring and components from short-circuit faults → Application: Line protection, small control transformers, and industrial control panels. In practice, this means safer startup sequences and less downtime when equipment powers up. Feature: Rejection style construction → Business Impact: Prevents incorrect fuse replacement, reducing risk of improper protection and panel faults → Application: Critical in control panels where tamper-resistance and correct rating are essential. Feature: 2.5 A rating with Class CC construction and 200 kAIC interrupt capability → Business Impact: Provides precise coordination for small loads while delivering robust fault clearance, improving safety margins and system reliability → Application: Branch circuits and low-current control circuits in automation assemblies. Feature: Ferrule end x ferrule end connections → Business Impact: Easy, secure terminations that speed up installation and reduce contact resistance → Application: Quick field replacements and durable panel-term wiring. Feature: Non-indicating fuse with 12 s at 200% response → Business Impact: Maintains clean panel aesthetics while offering predictable protection timing, aiding diagnostic planning → Application: Standard protection in power distribution and control schemes. Feature: Compliance and compatibility → Business Impact: CE Marked, RoHS compliant, 600 V rating align with corporate regulatory requirements and cross-vendor compatibility within the Bussmann ecosystem → Application: Industrial protection across line protection, branch circuits, and small transformers, with straightforward sourcing and maintenance.
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FAQs
Use ferrule-end terminations for a secure connection, ensure the panel is powered down and de-energized, and follow the NEC/CSA guidelines. Verify the 2.5 A rating and 600 V rating match the circuit requirements, and check that the ferrule ends seat fully to avoid contact resistance. This minimizes nuisance trips and ensures consistent protection across branch circuits.
Ideal for line protection, small control transformers, industrial control circuits, and branch circuits in automation panels. Its Class CC construction with current-limiting capability and time-delay characteristics supports reliable protection during startup surges while providing fast fault clearance for safe operation.
The FNQ-R-2-1/2 features a 200 kAIC interruption rating at 600 V, meaning it can safely interrupt large fault currents without arcing or damage to surrounding components. This is critical for protected panel safety, equipment longevity, and maintaining uptime in high-energy environments.
Yes. The FNQ-R is designed as part of the Bussmann Series with ferrule-end terminations, CE RoHS compliance, and a 600 V rating. Its rejection-style design helps prevent improper replacements, and its current-limiting, time-delay characteristics coordinate with other Bussmann devices for consistent protection across mixed-control systems.
The fuse minimizes nuisance trips during startup and delivers fast fault clearance, improving equipment availability and reducing unplanned downtime. Its robust interrupt rating and regulatory compliance simplify procurement and reduce lifecycle risk for industrial automation projects, delivering a favorable total cost of ownership over time.