Eaton TCF40RN Fuse - Class CF Time-Delay UL Listed
Part Number: TCF40RN
Quick Summary
The Eaton TCF40RN fuse is a Class CF time-delay device designed for motor and power-control protection in industrial equipment. In panels and machines facing inrush surges and intermittent load spikes, selecting a fuse that tolerates startups without nuisance trips reduces downtime and maintenance. UL Listed, CSA Certified, and CE RoHS compliant certifications provide regulatory assurance for global deployments and traceability in quality programs. The unit's 35 mm DIN rail mounting and blade-end connection simplify installation, while its compact size and finger-safe design support safer, faster service in cramped control panels. This fuse aligns with Bussmann CF families, delivering reliable protection with a minimal footprint for automation applications.
Product Information
Extended Description
TCF40RN Eaton: Eaton Bussmann Series Class CF fuse, TCF, time-delay, dual-element current limiting cube fuse, 40 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
TCF40RN
UPC
051712220989
Product Length/Depth
2.13 in
Product Height
1.9 in
Product Width
1 in
Product Weight
0.17 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
40 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
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
TCFH60N, CCP2-3-60CF
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
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 and dual-element current-limiting construction provide balanced protection by allowing brief inrush currents while limiting sustained fault current. Business Impact: reduces nuisance trips during motor start-ups, lowering unplanned downtime and maintenance costs. Application: ideal for motor starters, pumps, and conveyors in automated production lines. Feature: 40 A amperage rating with a voltage rating of 600 Vac and 300 Vdc ensures broad compatibility with industrial power schemes. Business Impact: streamlines component selection and enhances system reliability across mixed AC/DC environments. Application: control panels and feeder circuits in machine rooms. Feature: High interrupt ratings (100 kAIC at 300 Vdc and 300 kAIC at 600 Vac) deliver superior fault clearance. Business Impact: improves safety margins and protects downstream devices during short-circuits. Application: heavy-duty drives and power distributions in automation systems. Feature: Blade-end connection and 35 mm DIN rail mounting simplify installation and maintenance. Business Impact: reduces installation time and prevents loose connections that cause overheating. Application: retrofit upgrades and new panel builds. Feature: Finger-safe housing, UL Listed, CSA Certified, and CE RoHS compliance provide safety and regulatory assurance. Business Impact: lowers risk during servicing and supports global compliance programs. Application: any industrial equipment deployed in regulated environments. Feature: Compatibility with other Bussmann CF products (e.g., TCFH60N, CCP2-3-60CF) simplifies spare stocking and lifecycle management. Business Impact: reduces procurement complexity and inventory costs. Application: multi-line control panels and shared spare pools in manufacturing facilities.
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FAQs
The TCF40RN uses a 35 mm DIN rail mounting with a blade-end connection, enabling quick installation in standard industrial control panels. Its compact dimensions and finger-safe housing simplify retrofits and reduce the risk of loose connections in crowded enclosures.
The fuse is rated for 40 A with voltage ratings of 600 Vac and 300 Vdc. It provides 100 kAIC interrupt rating at 300 Vdc and 300 kAIC at 600 Vac, delivering robust fault-clearing capability for cross-cutting industrial loads and drives.
Yes. The device is CE Marked and RoHS compliant, and it is UL Listed and CSA Certified, offering global regulatory assurance and traceability for safety and compliance across manufacturing facilities.
Ideal for motor protection and control panels, including conveyors, pumps, and automation drives. The time-delay Class CF design handles startup inrush while maintaining protection, making it suitable for machine control and feeder circuits in automated lines.
The TCF40RN integrates with other Bussmann CF products (e.g., TCFH60N, CCP2-3-60CF), enabling streamlined spare stocking and lifecycle planning. High interrupt ratings and robust construction reduce replacement frequency and improve uptime in critical processes.