Eaton TCF400RN Fuse - Class CF Time-Delay, 200 kAIC
Part Number: TCF400RN
Quick Summary
The TCF400RN fuse provides fast, reliable overcurrent protection for industrial power distribution. Nuisance trips during motor startup and inrush lead to downtime; this time-delay, dual-element design minimizes outages. It is UL Listed and RoHS compliant, with Class CF designation and a 600 V rating to support robust, code-compliant protection. Designed for easy integration in standard Bussmann series Class CF cube fuse blocks, it delivers predictable performance and cost-effective protection across electrical protection & circuit control applications. For engineers and procurement teams, this fuse translates to improved reliability, reduced maintenance, and faster project commissioning.
Product Information
Extended Description
TCF400RN Eaton: Eaton Bussmann Series Class CF fuse, TCF, time-delay, dual-element current limiting cube fuse, 400 A, non-idicating fuse, interrupting rating of 100 kA at 300 Vdc and 200 kA at 600 Vac
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF400RN
UPC
051712698009
Product Length/Depth
4.26 in
Product Height
3.48 in
Product Width
1.7 in
Product Weight
1.16 lb
Warranty
No warranty
Compliances
RoHS Compliant
Certifications
UL Listed
Amperage Rating
400 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
200 kAIC
Voltage rating
600 V
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
Quantity
1
Special features
Finger safe
Used with
TCFH400N
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
Time-delay, dual-element design in the TCF400RN cube fuse delivers selective protection for high inrush loads. The dual-element construction provides both fast short-circuit clearing and resistance to nuisance trips during motor start-ups, maintaining line continuity. In practical terms, this means fewer unplanned outages in conveyors, extruders, pumps, and automated lines. The 400 A rating and 600 V operating range support heavy industrial drives while staying compatible with standard protection blocks. By tolerating brief surges without opening, it smooths transitions between running and starting conditions. This makes it a reliable choice for electrical protection & circuit control in demanding manufacturing environments. An interrupt rating of 200 kAIC ensures safe fault clearance even in high-current environments such as feeders and main distribution panels. This capability reduces the risk of collateral damage to adjacent components when faults occur, protecting both equipment and personnel. The fuse's glass-filled PES body resists mechanical stresses and environmental contaminants, extending service life in dusty or humid conditions. The blade-end connection simplifies field installation, enabling quick swaps in standard CB and fuse blocks while reducing installation torque and risk of arcing. The finger-safe design further improves on-site safety during maintenance and replacement. UL Listed certification confirms compliance with recognized safety standards, and RoHS compliance supports environmental responsibility across assemblies. The non-indicating design minimizes inspection time in busy control rooms, while the 4.26 in length, 3.48 in height, and 1.7 in width footprint fits tight enclosures and allows straightforward panel layout. The Class CF designation and compatibility with TCFH400N enable modular, scalable protection in electrical protection & circuit control applications. This fuse is well-suited for motor control centers, drives in automation lines, and power distribution panels where reliability and predictability matter. For procurement teams, stocking a single footprint that covers multiple applications reduces SKU complexity and maintenance costs.
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FAQs
The TCF400RN uses a blade-end connection designed for compatibility with standard Bussmann Series Class CF cube fuse blocks. To install, align the blade terminals with the block sockets, firmly insert until seated, and verify engagement with the housing. Always de-energize the circuit and follow lockout/tagout procedures. For new installations, ensure the enclosure provides adequate clearance and that the block is rated for 400 A and 600 V. Routine inspection should confirm that the fuse remains non-indicating and finger-safe during service.
The TCF400RN is a time-delay, dual-element Class CF fuse, which tolerates brief inrush without opening while still providing fast fault clearing. This balance reduces nuisance trips during motor startup and protects circuits against short circuits. It is particularly effective in motor control centers and drives where startup surges are common, helping to improve uptime and extend motor life by avoiding unnecessary interruptions in normal operation.
The TCF400RN is UL Listed and RoHS compliant, meeting recognized safety and environmental standards. Its Class CF designation and 600 V rating support use in broad industrial applications, including AC and DC sections within panel protection. Its compatibility with Bussmann Series components ensures a cohesive, compliant protection strategy for electrical protection and circuit control systems.
Yes. With a 400 A rating and 200 kAIC interrupt capacity at 600 V, the TCF400RN is well-suited for feeders and main distribution panels in industrial environments. Its dual-element construction provides reliable protection against faults while tolerating normal inrush, making it a strong choice for panel builders and retrofit projects in manufacturing and process industries.
The finger-safe, non-indicating design reduces maintenance labor since inspections are minimized and field replacements are straightforward. UL Listed and RoHS compliant features lower procurement risk and environmental impact. Its compatibility with standard Class CF blocks and the TCFH400N family supports modular protection strategies, reducing SKU proliferation and enabling scalable protection as systems grow, ultimately lowering total cost of ownership.