Eaton FNQ-5 fuse - 10 kAIC at 500 Vac
Part Number: FNQ-5
Quick Summary
Eaton FNQ-5 fuse is a time-delay device designed for motor control circuits to tolerate inrush currents while providing robust protection. This helps prevent nuisance tripping during motor startup and transformer inrush, reducing downtime and maintenance costs. CE Marked and RoHS compliant, the FNQ-5 meets essential safety and environmental standards for global deployment. With a 5 A rating and 500 V operating capability, it delivers reliable protection in industrial panels and control circuits. A non-indicating, ferrule-end fuse, the FNQ-5 integrates smoothly into standard assemblies, delivering value across installation, maintenance, and long-term reliability.
Product Information
Extended Description
FNQ-5 Eaton: Eaton Bussmann series FNQ fuse, Time-delay, Motor control transformers, Circuits with in-rush currents, 5 A, Non-indicating, Ferrule end x ferrule end, 10 kAIC at 500 Vac, Nickel-plated bronze endcap, Standard, 500 V
Product Name
Eaton Bussmann series FNQ fuse
Catalog Number
FNQ-5
UPC
051712786294
EAN
5027590060554
Product Length/Depth
0.41 in
Product Height
1.5 in
Product Width
0.41 in
Product Weight
0.175 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
5 A
Interrupt rating
10 kAIC at 500 Vac
Voltage rating
500 V
Material
Nickel-plated bronze endcap
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - FNQ-5
Datasheet - FNQ-30
Feature Time-delay protection for inrush currents → Business impact Reduces nuisance tripping in motor loads and transformers, improving uptime in automation lines → Application Motor control panels, transformer-fed circuits. Feature 5 A, 500 V rating → Business impact Safe protection for small motors and control devices without overfusing → Application Control circuitry in enclosures with standard voltage rails. Feature Ferrule end x ferrule end → Business impact Easy, secure wiring and quick replacement, minimizing field wiring errors → Application Panel board and terminal block installations. Feature Nickel-plated bronze endcaps → Business impact Durable, corrosion-resistant contacts extend fuse life in harsh environments → Application Harsh plant floors and dusty environments. Feature Compliance CE Marked, RoHS → Business impact Enables regulatory-ready deployments across markets, streamlining procurement → Application Global manufacturing and multi-site projects. Feature Non-indicating indicator → Business impact Minimal visual components reduce maintenance checks while preserving reliability → Application Compact protection in dense control cabinets.
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FAQs
FNQ-5 uses ferrule end terminals for straightforward drop-in installation into standard panel wiring. Ensure the circuit operates up to 500 V and the load current remains near 5 A. Use appropriate ferrules and crimp tools, then secure the fuse in a compatible holder to maintain solid contact, minimize resistance, and ensure reliable protection.
FNQ-5 is a time-delay fuse designed to tolerate short surges typical of motor startups. With a 5 A rating and a 10 kAIC interrupt rating at 500 Vac, it protects downstream equipment without nuisance outages, making it ideal for motor control transformers and circuits with inrush loads in industrial settings.
Yes. The FNQ-5 is CE Marked and RoHS compliant, ensuring conformity with European safety and environmental standards. This helps streamline cross-border deployments and supplier qualification, particularly in regulated industries such as automation, manufacturing, and energy management.
The FNQ-5 is designed for motor control circuits and transformer-fed loads where inrush currents are common. Its time-delay characteristics, 5 A rating, and 500 V capability make it suitable for protecting small motors, relays, and control devices while supporting reliable startup and continuous operation in panels and automation cabinets.
FNQ-5 is a non-indicating fuse designed for long, maintenance-light service. Replacement is straightforward when a fault occurs or during preventative checks. Given its robust endcaps and ferrule connections, replacement intervals are typically driven by fault events or scheduled cabinet maintenance rather than routine conformance checks.