Eaton FNM-3 Fuse - 3 A Time-Delay, 250 V, 10 kAIC
Part Number: FNM-3
Quick Summary
The Eaton FNM-3 fuse provides time-delay overcurrent protection for control panels and industrial equipment. Engineers often struggle to balance fast response against nuisance trips in compact, plug-and-play protection devices. CE marked and RoHS compliant, the device also delivers 10 kAIC at 125 VAC and 100 AIC at 250 VAC for critical safety and reliability. With ferrule-end connections and nickel-plated bronze endcaps, it installs quickly in standard assemblies and improves long-term reliability. This combination supports scalable panel designs and reduces downtime across automation and electrical protection workflows. Its 3 A rating and dual-element construction help optimize protection for low-current control circuits.
Product Information
Extended Description
FNM-3 Eaton: Eaton Bussmann series FNM fuse, Time-delay, 3 A, Dual, Non-indicating, Ferrule end x ferrule end, 10 kAIC at 125 Vac, 100 AIC at 250 Vac, Nickel-plated bronze endcap, Standard, 250 V
Product Name
Eaton Bussmann series FNM fuse
Catalog Number
FNM-3
UPC
051712520300
EAN
5027590449496
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
3 A
Interrupt rating
10 kAIC at 125 Vac 100 AIC at 250 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-3
FNM-3~BUSS MIDGET FUSE
Datasheet - FNQ-30
Time-delay, dual-element construction reduces nuisance trips during motor startup and transient surges, delivering smoother equipment operation and fewer unplanned outages. This translates to lower maintenance costs and higher plant uptime in automation cabinets and small motor circuits. The 3 A amperage rating pairs with a 250 V supply to support control circuits and panel filtering while maintaining regulatory compliance. Ferrule-end x ferrule-end connections, plus nickel-plated bronze endcaps, ensure robust, corrosion-resistant terminations that simplify field replacement and long-term reliability in harsh industrial environments. The fuse is CE marked and RoHS compliant, helping manufacturers meet global sourcing requirements and reduce regulatory risk. Compact dimensions (0.39 in x 0.39 in x 1.44 in) fit dense panel layouts without sacrificing protection. The Bussmann series design emphasizes superior overload and cycling capabilities, supporting frequent on/off duty cycles in control applications.
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FAQs
The FNM-3 uses ferrule-end x ferrule-end connections, paired with nickel-plated bronze endcaps. This design provides robust, corrosion-resistant terminations that install quickly in standard panel-mounted fuse blocks. The ferrule ends simplify wiring harness integration and reduce the risk of loose connections, enabling repeatable replacement during maintenance without special adapters.
The FNM-3 is a 3 A time-delay (dual-element) fuse rated for 250 V, with an interrupt rating of 10 kAIC at 125 VAC and 100 AIC at 250 VAC. It is well suited for low-current control circuits, panel-mounted logic, and small motor-start applications where startup surges must be accommodated without nuisance tripping while sustaining protection within the panel’s voltage class.
Yes. The FNM-3 is CE marked and RoHS compliant, aligning with European safety, health, and environmental requirements. This ensures regulatory acceptance in EU markets and facilitates compliant sourcing for global assemblies. For buyers, these certifications translate to reduced compliance risk when integrating the fuse into commercial and industrial control systems.
Yes. The time-delay, dual-element design is specifically intended to tolerate short startup surges without tripping, while still providing reliable overload protection for motor control circuits. Its robust interrupt ratings and durable endcaps help sustain frequent cycling in automation panels, reducing downtime and extending component life in demanding environments.
Install the FNM-3 in accordance with standard Bussmann/Eaton fuse practices, ensuring ferrule-end connections are fully seated and the endcaps are clean and free of corrosion. When replacing, match the catalog number FNM-3, verify the 3 A rating and 250 V class, and inspect for any signs of overheating or discoloration. With its compact footprint, ensure adequate clearance and airflow to maintain reliable operation in dense panel enclosures.