Eaton WCF20RN Fuse - Class CF, 20 A, 50 kA at 690 Vac
Part Number: WCF20RN
Quick Summary
The WCF20RN fuse from Eaton delivers fast-acting overcurrent protection for industrial power circuits. Engineers often contend with nuisance outages and difficult maintenance in demanding environments; this finger-safe, cube fuse design helps minimize those hassles while preserving reliability. CE Marked and RoHS compliant, the WCF20RN features Class CF dual-element protection suitable for power distribution and control panels. With its compact form factor and proven current-limiting performance, this solution supports safer, more efficient panel protection and total cost of ownership reductions across electrical infrastructure projects.
Product Information
Extended Description
WCF20RN Eaton: Eaton Bussmann Series Class CF fuse, WCF, fast-acting, dual-element current limiting cube fuse, 20 A, finger safe, non-indicating fuse, interrupting rating of 50 kA at 690 Vac
Product Name
Eaton Bussmann series WCF fuse
Catalog Number
WCF20RN
UPC
051712395694
Product Length/Depth
1.88 in
Product Height
1 in
Product Width
0.75 in
Product Weight
1.39 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
20 A
Fuse type
CUBEFuse
Material
Glass filled PES
Number of elements
Dual
Packaging type
Standard
Class
Class CF
Fuse indicator
Non-indicating
Special features
Finger safe, non-indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Fuseology
Bussmann series Wind CUBEFuse data sheet no. 9009
Feature → Business Impact → Application: The WCF20RN is a fast-acting, dual-element current-limiting Class CF cube fuse rated at 20 A with a 50 kA interrupting rating at 690 Vac. This combination reduces arc energy and limits fault propagation, protecting downstream components and improving equipment uptime in motor drives and MCCs. Application: ideal for distribution panels and branch circuits where rapid fault isolation is critical. Feature → Business Impact → Application: Finger-safe, non-indicating design lowers maintenance risk during fuse replacement and minimizes surprising outages. This enhances safety for technicians and reduces downtime during routine servicing. Application: suitable for high-traffic electrical cabinets and accessible panelboards where safety and quick service are priorities. Feature → Business Impact → Application: Compact cube geometry (1.88 in L × 1 in H × 0.75 in W) and a weight of 1.39 lb enable dense panel layouts and easier inventory management. This supports streamlined installation and faster replacements in crowded control enclosures. Application: panel-mounted protection in control panels and switchgear with space constraints. Feature → Business Impact → Application: CE Marking and RoHS compliance ensure regulatory alignment across EU and global markets, reducing procurement risk and simplifying vendor qualification. Application: OEM assemblies and multinational installations requiring standardized certifications. Feature → Business Impact → Application: Comprehensive documentation and catalog support (e.g., Bussmann catalogs and wind-cubefuse data) facilitate correct sizing, replacement, and lifecycle planning. Application: engineering design reviews and maintenance planning for electrical protection schemes.
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FAQs
Yes. The WCF20RN uses the standard Class CF CUBEFuse format designed for Eaton Bussmann protection schemes. Its 1.88 in length, 1 in height, and 0.75 in width fit common panelboard and MCC enclosure footprints, enabling straightforward replacement and consistent protection across control panels and motor control centers.
The device is a 20 A fast-acting, dual-element current-limiting fuse with a 50 kA interrupting rating at 690 Vac. The dual elements provide robust fault isolation while keeping voltage dip and arc energy in check, improving protection for downstream devices and cables in powered systems.
Yes, the WCF20RN is well-suited for MCCs and panelboards where precise overcurrent protection is required. Its Class CF dual-element design and current-limiting characteristics help protect feeders and branch circuits in demanding industrial environments, while its finger-safe construction supports safer maintenance in accessible enclosures.
The WCF20RN is CE Marked and RoHS Compliant, ensuring regulatory alignment for EU and RoHS-regulated markets. This supports global procurement and reduces compliance risk in multinational deployments and OEM integrations.
The fast-acting, current-limiting performance minimizes nuisance trips and downstream damage, reducing downtime and repair costs. Finger-safe handling and standard packaging simplify stocking and replacements, while access to catalogs and data sheets (e.g., Bussmann catalogs and datasheets) supports faster engineering decisions and lifecycle planning.