Eaton FNM-2-1/4 Fuse - 2.25A, 100AIC@250V (CE/RoHS)
Part Number: FNM-2-1/4
Quick Summary
The Eaton Bussmann series FNM fuse is a time-delay fuse used to protect control circuits and motor loads in industrial automation environments. Engineers often struggle with nuisance trips during inrush or start-up surges, which can halt production and complicate maintenance. This device carries CE marking and RoHS compliance, underscoring safe materials and regulatory alignment, while offering a robust 250 V rating and substantial interrupt capability. By combining durable ferrule-terminals with a compact footprint, it supports reliable installation in control panels and compact enclosures, reducing replacement downtime and improving system availability.
Product Information
Extended Description
FNM-2-1/4 Eaton: Eaton Bussmann series FNM fuse, Time-delay, 2.25 A, Dual, Non-indicating, Ferrule end x ferrule end, 100 AIC at 250 Vac, 10 kAIC at 125 Vac, Nickel-plated bronze endcap, Standard, 250 V
Product Name
Eaton Bussmann series FNM fuse
Catalog Number
FNM-2-1/4
UPC
051712520218
EAN
5027590060233
Product Length/Depth
0.39 in
Product Height
1.44 in
Product Width
0.39 in
Product Weight
0.2 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
2.25 A
Interrupt rating
100 AIC at 250 Vac 10 kAIC at 125 Vac
Voltage rating
250 V
Material
Nickel-plated bronze endcap
Number of elements
Dual
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Superior overload and cycling capabilities
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - FNM-2-1/4
FNM-2-1/4~FNM-2-1-4~BUSS MIDGET FUSE
Time-delay dual-element design enables the fuse to tolerate brief overcurrents during motor start-up and inrush, reducing nuisance trips that disrupt line productivity. This capability translates to measurable uptime gains in fans, pumps, conveyors, and other frequently restarted loads, while preserving fast clearing under sustained faults. With an interrupt rating of 100 AIC at 250 V and 10 kAIC at 125 V, the FNM-2-1/4 delivers a generous protection margin for branch circuits feeding rugged equipment, supporting safer fault isolation and minimizing collateral damage in assemblies. Ferrule end x ferrule end terminations with nickel-plated bronze endcaps provide robust, corrosion-resistant connections that stay reliable in dusty or humid plant spaces, and the mechanical strength supports quick field terminations during maintenance. Its compact body footprint—0.39 in by 0.39 in with a height of 1.44 in—facilitates installation in crowded control panels and compact enclosures, while the standard Bussmann form factor streamlines stocking and interchangeability across multiple machines. CE marking and RoHS compliance ensure European regulatory alignment without sacrificing performance, helping manufacturers meet audits and customer expectations for responsible design. Designed for repeat duty cycles, the fuse supports superior overload and cycling capabilities, reducing replacement frequency and labor costs. In typical plant scenarios, this translates to lower total cost of ownership as equipment uptime improves and spare parts requirements decline. Compatibility with standard control panel assemblies and Bussmann-series holders makes retrofits and new builds straightforward, even in space-constrained layouts, positioning the FNM-2-1/4 as a reliable, long-term protection solution for industrial electrical protection and circuit control.
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FAQs
The FNM-2-1/4 uses ferrule end x ferrule end connections, compatible with standard Bussmann series fuse holders and panel boards. Its compact body (0.39 in by 0.39 in) fits tight control cabinets, while nickel-plated bronze endcaps provide robust, corrosion-resistant terminations for long service life.
Time-delay, or dual-element design, allows the fuse to withstand temporary inrush currents typical of motors and transformers without nuisance tripping. This makes it ideal for applications with rechargeable loads, conveyors, pumps, and other equipment that experience brief surge conditions during start-up.
Yes. With a 2.25 A rating and 100 AIC interrupt rating at 250 V, it provides reliable protection for motor circuits and control panels. The ferrule terminations simplify installation in standard fuse blocks, reducing wiring time and improving connection reliability in harsh industrial environments.
The fuse is CE marked and RoHS compliant, ensuring conformity with European safety and materials restrictions. This simplifies regulatory approvals for equipment deployed in the EU and demonstrates a commitment to responsible material usage and environmental standards.
The dual-element design and robust endcaps extend service life and reduce replacement frequency in demanding applications. Lower nuisance trips mean less downtime and improved productivity, contributing to a favorable total cost of ownership in manufacturing lines and control cabinets.