Eaton WCF45RN Fuse - 50 kA at 690 VAC, Class CF
Part Number: WCF45RN
Quick Summary
The Eaton WCF45RN fuse provides fast-acting overcurrent protection for electrical panels and motor circuits. In real-world systems, unexpected trips and nuisance faults drive maintenance delays and hidden costs. It is CE marked and RoHS compliant, aligning with European regulatory expectations, while its Class CF dual-element design delivers reliable current limiting. Designed to drop into standard Bussmann cube-fuse holders, the WCF45RN simplifies stocking, installation, and service, reducing downtime and improving overall uptime metrics. With a 45 A rating and explicit 50 kA interrupting capability at 690 VAC, this fuse supports safe, scalable protection across power distribution and motor-control applications.
Product Information
Extended Description
WCF45RN Eaton: Eaton Bussmann Series Class CF fuse, WCF, fast-acting, dual-element current limiting cube fuse, 45 A, finger safe, non-indicating fuse, interrupting rating of 50 kA at 690 Vac
Product Name
Eaton Bussmann series WCF fuse
Catalog Number
WCF45RN
UPC
051712395809
Product Length/Depth
2.13 in
Product Height
1.13 in
Product Width
1 in
Product Weight
1.42 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
45 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
The Power of Space
The Power of Space
Bussmann series Wind CUBEFuse data sheet no. 9009
Feature: Class CF current-limiting dual-element cube fuse. Benefit: Rapid fault isolation reduces arc energy and minimizes collateral damage to downstream equipment, improving line availability in panels and motor circuits. Application: Suitable for mid‑range distribution boards and machine feeders where uptime and fault containment matter. Feature: Finger-safe design and non-indicating housing. Benefit: Safer handling during maintenance and reduced risk of accidental contact, supporting safer field service and easier compliance with safety protocols. Application: Service and installation tasks in confined electrical racks where operator safety is a priority. Feature: 50 kA interrupting rating at 690 VAC. Benefit: Higher fault-current capacity limits, lowering the probability of cascading failures during system faults. Application: Protection for equipment with potential high-energy faults in switchgear and drive systems. Feature: 45 A amperage rating and cube fuse packaging. Benefit: Predictable protection for common motor and control circuits, enabling precise protection coordination. Application: Motor-control centers, power distribution panels, and protected feeders. Feature: CE Marking and RoHS compliance. Benefit: Regulatory alignment and environmental responsibility that streamline procurement and global deployments. Application: European projects and industries with strict environmental and regulatory requirements.
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FAQs
The WCF45RN is designed for Eaton Bussmann WCF cube-fuse holders and fits standard cube-fuse mounting platforms used in many electrical panels and motor-control enclosures. Its dual-element construction and Class CF designation support reliable performance in common protection schemes, while the standard sizing (2.13 in length, 1.13 in height, 1 in width) simplifies retrofits and stocking.
The WCF45RN provides a 45 A amperage rating and operates at 690 VAC with a 50 kA interrupting capability. It is typically used in electrical distribution panels, motor-control centers, and protection schemes for feeders and drives, where fast response and high fault-current handling are required to prevent equipment damage.
The WCF45RN carries CE marking and RoHS compliance, reflecting conformity to European regulatory requirements and environmental standards. This helps ensure easier market access, supplier qualification, and safer procurement for projects governed by European codes and sustainability criteria.
Finger-safe construction reduces the risk of accidental contact during handling and replacement, while a non-indicating design minimizes false positives or visual confusion in busy panel environments. This combination supports safer field service, quicker replacements, and lower likelihood of accidental interference in live systems.
Using the WCF45RN enhances system reliability by delivering precise protection with a high interrupting rating, reducing downtime and maintenance costs. Its codified ratings and compliance simplify procurement, warranty coverage, and regulatory reporting, while its compatibility with standard cube-fuse holders enables scalable protection across multiple lines of business.