Eaton FNQ-3 Fuse - 3 A, 500 V CE RoHS Compliant

Part Number: FNQ-3
Manufacturer
Eaton
Part number
FNQ-3

Quick Summary

FNQ-3 fuse provides reliable overcurrent protection for motor control and low-voltage circuits in industrial panels. Inrush-heavy loads, such as motor starters, can cause nuisance trips; this time-delay fuse tolerates brief surges without compromising safety. This device carries CE Marked and RoHS Compliant certifications, supporting global compliance, and it offers a 10 kAIC interrupt rating at 500 VAC to shield upstream equipment. For panel builders and maintenance teams, its compact ferrule-end design and nickel-plated endcaps simplify installation and extend life, while ensuring compatibility with standard Bussmann series blocks. As a result, engineers gain dependable protection with predictable replacement cycles, driving uptime and safer electrical protection and circuit control in demanding industrial environments.

Product Information

Extended Description

FNQ-3 Eaton: Eaton Bussmann series FNQ fuse, Time-delay, Motor control transformers, Circuits with in-rush currents, 3 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-3
UPC
051712786270
EAN
5027590060516
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
3 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
Special features
Non-indicating
Feature → Time-delay design enables brief surge tolerance without nuisance tripping, delivering a measurable reduction in unplanned downtime. Business Impact → Improves line uptime and production throughput in machinery with startup inrush, such as conveyors and presses. Application → Suitable for motor control circuits and power feeds where inrush currents are routine. Feature → 3 A amperage rating at 500 VAC with a 10 kAIC interrupt rating provides strong fault protection while matching typical control circuit loads. Business Impact → Safeguards equipment and wiring without over-protection, reducing replacement costs and downtime. Application → Ideal for low-voltage branch circuits in control panels and compact motor starters. Feature → Non-indicating status and ferrule end x ferrule end connections streamline installation and reduce maintenance overhead. Business Impact → Faster panel assembly and simpler diagnostics during maintenance cycles. Application → Fits standard fuse blocks and field-replaceable assemblies. Feature → Nickel-plated bronze endcaps and robust construction extend service life in demanding environments. Business Impact → Lower maintenance frequency and durable performance under vibration and temperature variations. Application → Industrial environments requiring reliable, long-lasting fuses in control gear. Feature → CE Marked and RoHS compliant positioning supports global manufacturing and procurement. Business Impact → Enables compliance-driven sourcing and reduces regulatory risk across regions. Application → Global OEMs and integrators sourcing through standard catalogs and distributors.

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FAQs

FNQ-3 uses ferrule end x ferrule end connections and fits standard Bussmann series fuse blocks. It measures 0.41 in x 0.41 in with a height of 1.5 in, and its nickel-plated bronze endcaps simplify mounting in crowded control panels while resisting oxidation in industrial environments.
FNQ-3 is a 3 A fuse rated for 500 V with an interrupt rating of 10 kAIC at 500 VAC. It is time-delay (slow-blow) designed to tolerate inrush currents common in motor control transformers, reducing nuisance trips in startup scenarios.
Yes. The FNQ-3 fuse is explicitly designed for circuits with inrush currents and motor control applications, providing reliable protection without tripping on brief startup surges, thereby enhancing equipment uptime.
FNQ-3 is CE marked and RoHS compliant, which supports global regulatory alignment and reduces compliance risk for multinational deployments. These certifications reassure buyers that the fuse meets essential environmental and safety standards.
Because FNQ-3 is non-indicating, regular panel inspections and periodic stocking of the same FNQ-3 type streamline replacements. Its standard packaging and ferrule connections also facilitate quick swaps, reducing downtime and lifecycle costs.