Eaton TCF3RN Fuse - Class CF Time-Delay UL Listed
Part Number: TCF3RN
Quick Summary
The Eaton TCF3RN fuse is a Class CF time-delay device designed for motor drives and power-distribution circuits. This dual-element cube fuse helps prevent nuisance trips during startup while delivering robust fault interruption. Engineers often struggle with balancing short-term surges against steady-state loads, and the TCF3RN’s time-delay characteristic reduces unnecessary outages without compromising protection. It carries UL Listed, CSA Certified, and CE Marked compliance, confirming safety and regulatory readiness across global panels. With blade-end connections for quick installation on 35 mm DIN rails, it integrates seamlessly into standard chassis layouts. In addition to proven performance, this fuse supports compliant panel designs, compact dimensions, and predictable thermal behavior for improved reliability and maintenance planning.
Product Information
Extended Description
TCF3RN Eaton: Eaton Bussmann Series Class CF fuse, TCF, time-delay, dual-element current limiting cube fuse, 3 A, non-idicating fuse, interrupting of 100 kA at 300 Vdc and 300 kA at 600 Vac
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF3RN
UPC
051712220361
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
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 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
The Power of Space
The Power of Space
Bussmann series UL Class CF CUBEFuse data sheet no. 9000
Feature: Class CF time-delay design with dual-element current limitation. Benefit: Reduces nuisance trips during motor startup and surges while maintaining fast fault interruption. Application: Ideal for motor drives and mixed-load panels where startup currents are common and uptime is critical. Long-tail keywords: class CF fuse, time-delay cube fuse, motor protection fuse. Feature: High interrupt rating up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. Benefit: Robust fault current handling for high-energy applications, increasing panel reliability and safeguarding upstream equipment. Application: Main distribution panels, industrial controls, and feeders with potential high short-circuit currents. Feature: 3 A amperage rating; 600 Vac / 300 Vdc voltage rating. Benefit: Precisely protected circuits with predictable performance, enabling safe component sizing and reduced replacement costs. Application: Control loops and sensor power circuits in DIN-rail enclosures. Feature: Blade end connection, 35 mm DIN rail mounting, finger-safe housing. Benefit: Quick, secure installation and safer maintenance in industrial cabinets. Application: Ready-to-install in standard chassis rails and modular panels. Feature: Certifications CE Marked, UL Listed, CSA Certified. Benefit: Regulatory confidence for global deployments, streamlined compliance documentation. Application: Global manufacturing facilities and multi-region builds.
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FAQs
TCF3RN features a blade-end connection and is designed for mounting on 35 mm DIN rails inside standard chassis enclosures. It pairs well with common Bussmann mounting accessories and is suitable for Eaton CCP2-3-30CF or TCFH30N configurations where DIN-rail, plug-and-play installation reduces field wiring time and minimizes risk of misalignment during panel assembly.
The time-delay (dual-element) design tolerates brief inrush currents typical of motors at start-up, reducing nuisance trips. It then provides rapid interruption under sustained fault conditions. This balance translates to higher equipment uptime, fewer unwarranted outages, and safer startup sequences for conveyors, fans, and pump assemblies in automation panels.
TCF3RN is UL Listed, CSA Certified, and CE marked, signaling conformity to North American and European safety standards. These certifications simplify supplier clearance, warranty validation, and regulatory submissions for global manufacturing sites, helping to meet procurement specifications and internal safety programs without additional certification audits.
The fuse provides an interrupt rating of up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. This means it can safely interrupt high-energy fault currents without compromising panel integrity. In practice, it protects feeders and motor circuits in high-energy industrial environments while minimizing collateral damage to downstream devices.
Yes. The TCF3RN is part of the Bussmann Series Class CF family and is listed for use with related components like TCFH30N and CCP2-3-30CF. Common use cases include motor drives, control panels, and distribution blocks in manufacturing lines, where reliable protection, compact form factor, and DIN-rail mounting streamline installation and maintenance.