Eaton TCF20RN fuse - Class CF time-delay, UL Listed
Part Number: TCF20RN
Quick Summary
The Eaton TCF20RN fuse provides time-delay overcurrent protection for industrial control panels. Nuisance trips and slow fault clearance can derail uptime, increasing maintenance costs and unplanned outages. UL Listed, CSA Certified, CE marked, and RoHS compliant, this fuse meets global safety and environmental requirements for mixed fleets. Its 1.88 in length, 0.75 in width, and 1 in height enable compact 35 mm DIN rail chassis mounting in crowded control rooms. Designed for reliability in harsh environments, it integrates with other Bussmann CF devices such as TCFH30N and CCP2-3-30CF to streamline procurement and spare parts planning, reducing stocking complexity and enabling faster field replacements.
Product Information
Extended Description
TCF20RN Eaton: Eaton Bussmann Series Class CF fuse, TCF, time-delay, dual-element current limiting cube fuse, 20 A, non-idicating fuse, interrupting rating of 100 kA at 300 Vdc and 300 kA at 600 Vac
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF20RN
UPC
051712220941
Product Length/Depth
1.88 in
Product Height
1 in
Product Width
0.75 in
Product Weight
0.043 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 100 kAIC at 300 Vdc
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Color
Black
Fuse type
Class CF Time delay
Material
Glass filled PES
Number of elements
Dual
Packaging type
Standard
Class
Class CF
Connection
Blade end
Fuse indicator
Non-indicating
Mounting method
Chassis 35 mm DIN rail
Special features
Finger safe
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 UL Class CF CUBEFuse data sheet no. 9000
Feature: Time-delay, dual-element Class CF fuse. Business Impact: Minimizes nuisance trips while preserving robust fault protection, supporting reliable operation of power distribution circuits in industrial controls. Application: Control panels and motor protection circuits where load profiles include short surges. Feature: 20 A amperage rating with 600 Vac / 300 Vdc voltage rating. Business Impact: Matches common industrial loads and drives, reducing the risk of nuisance clears and unnecessary replacements. Application: Feeder circuits and MCCs in manufacturing environments. Feature: Compact dimensional footprint and blade-end connection with 35 mm DIN rail mounting. Business Impact: Accelerates installation, simplifies panel layouts, and lowers installation costs while enabling easy field replacement. Application: New panel builds and retrofits in machine rooms and electrical cabinets. Feature: Non-indicating fuse with dual-element current limiting. Business Impact: Reduces visual clutter in dense control panels and provides predictable protection without extra indicators. Application: Standardized protection in automation racks and distributed power architectures. Feature: UL Listed, CSA Certified, CE Marked, RoHS Compliant. Business Impact: Ensures regulatory compliance across regions, streamlines procurement, and supports audits. Application: Global deployments in OEM, integrator, and end-user environments.
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FAQs
The TCF20RN is designed for chassis mounting on a 35 mm DIN rail with blade-end connections for quick, secure installation. Ensure the rail is clean and the fuse is oriented to allow unobstructed cooling. Use standard Bussmann mounting hardware and follow the device’s clearance guidelines to avoid overheating. Compatible with typical control cabinets and MCC enclosures, this approach reduces commissioning time and simplifies replacements during maintenance.
The TCF20RN is rated for 20 A with a voltage rating of 600 Vac and 300 Vdc. Its interrupt ratings are 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, providing high protection for demanding industrial circuits. The fuse operates with a time-delay characteristic to tolerate temporary surges while still interrupting sustained faults within the published response time.
Yes. The TCF20RN is part of the Bussmann CF family and is listed as used with devices such as TCFH30N and CCP2-3-30CF. This compatibility simplifies design and procurement for panels that require a consistent CF fuse family, ensuring predictable performance across multiple components and reducing spare parts complexity.
The TCF20RN carries UL Listed, CSA Certified, CE Marked, and RoHS Compliant certifications. These markings confirm safety, electrical reliability, and environmental compliance, enabling global deployments, easier cross-border audits, and risk mitigation when sourcing harmonized protection components for multi-region projects.
Ideal for industrial control panels, motor protection circuits, and power distribution blocks, the TCF20RN balances nuisance-trip resistance with robust short-circuit protection. Its time-delay characteristic accommodates inrush and surges common in drives and controls, while compact DIN-rail mounting supports dense cabinet layouts and scalable automation architectures.