Eaton FCF20RN Fuse - UL Listed Class CF

Part Number: FCF20RN
Manufacturer
Eaton
Part number
FCF20RN

Quick Summary

Eaton FCF20RN fuse provides fast-acting overcurrent protection for industrial control circuits and power distribution panels. Engineers often wrestle with nuisance trips and selecting fuses that tolerate cycling without compromising safety. UL Listed, CSA Certified, and CE RoHS compliant, this Class CF fast-acting fuse is designed for reliable performance in regulated environments. Its blade-end, single-element cube design reduces inventory and simplifies replacements, while offering solid protection in compact control enclosures. By combining robust electrical ratings with a compact footprint, it supports efficient board layouts and streamlined maintenance in demanding industrial applications.

Product Information

Extended Description

FCF20RN Eaton: Eaton Bussmann Series UL Class CF, FCF fuse, fast-acting, single-element cube fuse, 20 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
FCF20RN
UPC
051712362467
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
20 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
Feature → Business Impact → Application: The FCF20RN is UL Listed, CSA Certified, and CE RoHS compliant, delivering regulatory assurance and safer procurement across global sites. This reduces compliance risk and accelerates audits in critical manufacturing environments, especially in panels that demand RoHS-compliant components and traceable certifications. The 20 A amperage rating with 600 Vac and 600 Vdc voltage ratings provides broad protection for AC and DC circuits, enabling engineers to standardize on a single fuse family without sacrificing safety. The 300 kAIC at 600 Vac and 50 kAIC at 600 Vdc interrupt ratings enable reliable fault interruption in high-energy systems, improving equipment uptime and protecting drives and controllers from damaging faults. The Class CF, fast-acting cube fuse design delivers quick clearing with a 4 minute response at 200%—reducing arc energy and downstream damage in power distribution blocks, while the blade-end connection simplifies retrofits and new installs. The compact dimensions (1.88 in L × 1.75 in H × 0.75 in W) and 0.08 lb weight make it ideal for space-constrained panels and dense PCB layouts, supporting scalable automation architectures. The glass-filled PES body and electroless tin-plated copper alloy terminal provide rugged performance in industrial environments, resisting vibration and corrosion over the product life. Operation from -40°C to 80°C ensures reliability across harsh manufacturing floors and equipment kitchens, while the non-indicating feature reduces misread trips in brightly lit control rooms. The fuse is compatible with Bussmann CF holders and is commonly used with TCFH30N and CCP2-3-30CF assemblies, enabling predictable interchangeability and minimizing BOM complexity for spare parts management.

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FAQs

The FCF20RN uses a blade-end connection with a single-element cube fuse design. Its compact dimensions—1.88 inches long, 1.75 inches high, and 0.75 inches wide—facilitate installation in space-constrained panels and readily fit into Bussmann CF holders and compatible enclosures.
Rated at 20 A with 600 Vac and 600 Vdc voltage ratings, the fuse provides interrupt ratings of 300 kAIC at 600 Vac and 50 kAIC at 600 Vdc. The 4-minute response at 200% ensures rapid clearing of faults while minimizing arc energy and downstream damage in typical industrial circuits.
Yes. It operates from -40°C to 80°C, uses a robust glass-filled PES body with tin-plated copper terminals, and is RoHS compliant. This combination supports reliable performance in harsh factories and equipment rooms while meeting regulatory requirements for modern electrical assemblies.
The FCF20RN is UL Listed, CSA Certified, and CE RoHS compliant. These certifications help streamline supplier qualification, regulatory audits, and cross-border deployments, ensuring the fuse meets essential safety and environmental standards for global manufacturing sites.
Its 20 A rating and compatibility with common CF holders reduce part diversity in spare kits. The fast-acting design lowers fault duration and equipment wear, contributing to less downtime. The non-indicating design minimizes nuisance indicators, while the compact form factor simplifies stocking and replacements in dense automation cabinets.