Eaton FCF3RN Fuse - UL Class CF Fast-Acting 3 A
Part Number: FCF3RN
Quick Summary
The Eaton Bussmann FCF fuse is a fast-acting cube fuse designed to protect low-voltage circuits in industrial controls. This solution addresses nuisance tripping and cycling by providing precise current interruption. It carries UL Listed and CSA Certified marks, CE marking, and RoHS compliance, underscoring safety and environmental responsibility. Built for reliability in demanding environments, the Class CF device balances fast protection with predictable clearing times, supporting OEMs and maintenance teams. Its compatibility with blade-end holders and common control-panel architectures helps streamline design, reduce downtime, and simplify regulatory compliance while maintaining robust protection for critical machinery.
Product Information
Extended Description
FCF3RN Eaton: Eaton Bussmann Series UL Class CF, FCF fuse, fast-acting, single-element cube fuse, 3 A, non-idicating fuse, interrupting rating of 50 kA at 600 Vdc and 300 kA at 600 Vac
Product Name
Eaton Bussmann series FCF fuse
Catalog Number
FCF3RN
UPC
051712362429
Product Length/Depth
1.88 in
Product Height
1.75 in
Product Width
0.75 in
Product Weight
0.08 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
3 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
300 kAIC at 600 Vac 50 kAIC at 600 Vdc
Response time
4 min at 200%
Voltage rating
600 Vac, 600 Vdc
Color
Black
Fuse type
Class CF Fast acting
Material
Glass filled PES
Number of elements
1
Operating Temperature
-40° to 80°C
Packaging type
Standard
Terminal material
Electroless tin plated copper alloy terminal
Class
Class CF
Connection
Blade end
Fuse indicator
Non-indicating
Special features
Superior overload and cycling capabilities
Used with
TCFH30N, CCP2-3-30CF
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Fuseology
Bussmann series Fast-acting CUBEFuse data sheet no. 2147
The 3 A amperage rating combined with a 600 Vac/600 Vdc voltage rating delivers precise protection and improves selectivity, reducing unnecessary disconnections in local control panels and sensor circuits. This supports smoother operation and longer equipment life in harsh industrial environments. UL Listed, CSA Certified, CE marked, and RoHS compliant certifications help ensure compliance with global safety and environmental standards, simplifying procurement and reducing audit risk for multi-site projects. With an interrupt rating of 300 kAIC at 600 Vac (and 50 kAIC at 600 Vdc), the fuse rapidly clears faults, protecting upstream power systems and minimizing arc energy in the event of a fault. The non-indicating blade-end design and compatibility with TCFH30N and CCP2-3-30CF assemblies simplify installation and replacement in crowded panels. Operating temperature of -40 to 80 C, plus a glass-filled PES body, ensures reliable performance in temperature-extreme environments. The 1-element cube form factor—1.88 in L × 1.75 in H × 0.75 in W and 0.08 lb weight—offers space-efficient protection for compact control enclosures and machine housings, enabling easier maintenance and inventory control.
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FAQs
The FCF3RN uses a blade-end connection designed for standard Bussmann holder setups and is compatible with assemblies such as TCFH30N and CCP2-3-30CF, enabling straightforward drop-in replacement in existing panels.
It is rated 3 A at 600 Vac/600 Vdc with a 300 kAIC interrupt rating at 600 Vac and 50 kAIC at 600 Vdc, plus a fast-acting response (~4 minutes at 200% rating), delivering reliable fault clearance.
Yes. Operating temperature is -40 to 80 C, and the fuse body is glass-filled PES with a compact cube design, offering robust performance and space efficiency in challenging installations.
The device is UL Listed and CSA Certified, CE marked, and RoHS compliant, ensuring safety, environmental compliance, and suitability for global deployments.
The 3 A fast-acting protection with high interrupt ratings reduces downtime from faults, minimizes arc energy, and simplifies compliance and maintenance, delivering improved uptime and lower total cost of ownership.