Eaton FNQ-4/10 Fuse - Time-delay, 10 kAIC at 500 Vac CE RoHS
Part Number: FNQ-4/10
Quick Summary
The Eaton FNQ-4/10 fuse provides time-delay protection for motor control circuits in industrial applications. Engineers often struggle with nuisance tripping during startup surges and costly downtime. CE marked and RoHS compliant, it handles up to 10 kAIC at 500 Vac, with a reliable time-delay profile. Compatible with standard ferrule-end connections in Bussmann series catalogs, it supports efficient installation and predictable protection. In design and procurement conversations, the FNQ-4/10's compact form factor and ferrule-end connections simplify panel layout and stocking. From maintenance technicians to buyers, the device offers clear specs, easy sourcing, and a favorable total cost of ownership over time.
Product Information
Extended Description
FNQ-4/10 Eaton: Eaton Bussmann series FNQ fuse, Time-delay, Motor control transformers, Circuits with in-rush currents, 0.4 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-4/10
UPC
051712786096
EAN
5027590407670
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
0.4 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-4/10
Feature: Time-delay protection with a 0.4 A amperage rating. Business Impact: reduces nuisance trips on inrush-heavy loads, improving uptime and equipment longevity. Application: motor control circuits and transformers in manufacturing environments. The FNQ-4/10’s time-delay characteristic balances rapid fault clearing with tolerance for startup surges, delivering consistent protection without unnecessary outages. Feature: High interrupt rating of 10 kAIC at 500 Vac. Business Impact: safeguards upstream power components and wiring from short-circuit events, limiting downstream damage and repair costs. Application: protective schemes for feeders and control panels across industrial facilities. Feature: Ferrule-end x ferrule-end connection with nickel-plated bronze endcaps. Business Impact: provides robust, corrosion-resistant contact surfaces and durable, vibration-tolerant mounting. Application: panel-mounted installations in harsh industrial settings. Feature: Compact footprint with 0.41 in length/depth, 0.41 in width, and 1.5 in height. Business Impact: enables dense panel layouts and easier replacement in crowded control bundles. Application: compact protection in compact enclosures and equipment bays. Feature: Compliance and packaging advantages with CE marking and RoHS compliance in a standard packaging. Business Impact: streamlines regulatory readiness and global sourcing for European and compliant markets. Application: cross-border projects and OEM builds needing traceable, standards-aligned protection.
Get a Quick Quote for a Eaton FNQ-4/10
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton FNQ-4/10?
Enquire Now
FAQs
Install the FNQ-4/10 using ferrule-end terminals on both ends, matching the ferrule-end x ferrule-end connection specified. Ensure the device fits the 0.41 in L x 0.41 in W x 1.5 in H footprint and that the panel and terminal blocks are rated for 500 Vac. Verify correct amperage (0.4 A) and secure mounting to prevent vibration-related contact issues.
10 kAIC at 500 Vac indicates the maximum interrupt current the fuse can safely interrupt without sustaining damage when connected to a circuit rated up to 500 Vac. This rating helps protect downstream equipment and wiring from short-circuit faults while tolerating normal inrush currents typical of motor startups.
Yes. The FNQ-4/10 is designed for motor control applications and circuits with inrush currents. Its time-delay characteristic supports startup surges, while the 0.4 A rating is ideal for low-current protection in control panels and associated transformers, delivering reliable protection without nuisance trips.
The FNQ-4/10 is CE marked and RoHS compliant, aligning with European safety and environmental standards. These certifications support global sourcing and regulatory compliance for industrial installations and OEMs.
The FNQ-4/10 offers durable ferrule-end connections and nickel-plated bronze endcaps, which improve contact reliability and resistance to corrosion. Its time-delay design reduces nuisance outages, contributing to lower maintenance costs and improved uptime over the product’s service life in demanding industrial environments.