Eaton TCF20 Fuse - UL Listed Class CF Time-Delay
Part Number: TCF20
Quick Summary
The Eaton Bussmann TCF fuse provides reliable time-delay current protection for control panels and motor circuits. Engineers often face nuisance tripping during motor startups and difficult replacements in cramped 35 mm DIN rail enclosures. It carries UL Listed and CSA Certified markings, is CE marked and RoHS compliant for global installations. With 35 mm DIN-rail mounting and blade-end connections, installation is straightforward, maintenance is safer due to finger-safe design, and spare parts stay standardized. Rated for 20 A and 600 Vac / 300 Vdc operation, its time-delay behavior avoids unnecessary outages while delivering reliable short-circuit protection in industrial controls.
Product Information
Extended Description
TCF20 Eaton: Eaton Bussmann Series Class CF fuse, TCF, time-delay, dual-element current limiting cube fuse, 20 A, indicating fuse, interrupting rating of 100 kA at 300 Vdc and 300 kA at 600 Vac
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF20
UPC
051712615013
EAN
5027590116954
Product Length/Depth
1.88 in
Product Height
1 in
Product Width
0.75 in
Product Weight
0.044 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
With Indicator
Mounting method
Chassis 35 mm DIN rail
Special features
Finger safe
Used with
TCFH30N, CCP2-3-30CF
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: Time-delay Class CF fuse design provides selective protection during motor startups and inrush events. Business Impact: reduces nuisance trips and protects downstream equipment, lowering maintenance and downtime. Application: control panels, motor starters, and power distribution on 35 mm DIN-rail enclosures. Feature: Dual-element current limiting with high interrupt rating. Business Impact: ensures safe disconnection of high-energy faults, improving safety margins and system reliability. Application: drives, conveyors, and large loads where fault energy must be rapidly limited. Feature: 20 A rating with 600 Vac / 300 Vdc capability and a defined response time. Business Impact: supports reliable protection across AC and DC portions of mixed systems, reducing the risk of arc faults and equipment damage. Application: medium-duty industrial controls and panel protection. Feature: Robust construction with finger-safe design and blade-end connections. Business Impact: safer maintenance, easier field replacement, and reduced risk of accidental contact. Application: easy retrofits in existing 35 mm DIN rail installations. Feature: Indicators and compliant packaging. Business Impact: provides visible fuse status for quick troubleshooting and aligns with UL, CSA, CE, RoHS requirements, simplifying procurement. Application: global manufacturing environments and mixed-regulatory footprints.
Get a Quick Quote for a Eaton TCF20
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton TCF20?
Enquire Now
FAQs
The TCF20 is designed for chassis mounting on 35 mm DIN rails using blade-end connections. Ensure the panel has a compatible DIN rail section, provide adequate clearances for heat dissipation, and verify conductors are within the fuse’s 20 A rating. Confirm that the enclosure allows finger-safe access and the indicator is visible for quick status checks. Proper torque and seating at the blade-end terminals ensure reliable contact and fault clearance during operation.
Key specs include a 20 A amperage rating, 600 Vac / 300 Vdc voltage rating, and interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. The time-delay, dual-element design helps tolerate inrush while providing fast fault interruption. These characteristics support safe operation in motor drives and control circuits, reducing nuisance trips and protecting downstream equipment during transient events.
Yes, the TCF20 is well-suited for motor protection in panels feeding single- or multi-motor loads where inrush currents are common. Its time-delay Class CF design accommodates starting surges, while its high interrupt rating ensures rapid fault clearance. In 3-phase applications, ensure coordination with upstream protection and adherence to local codes to maximize selectivity and minimize downtime.
The TCF20 carries UL Listed and CSA Certified markings, and CE Marked RoHS compliance. These certifications support regulatory compliance across North America and Europe, streamline supplier qualification, and simplify global procurement. They also assure performance standards for industrial environments and help meet safety, environmental, and energy-management requirements in regulated ecosystems.
The TCF20’s time-delay protection reduces nuisance trips during motor starting and inrush events, which lowers unplanned downtime and extends equipment life. Its 35 mm DIN-rail compatibility and finger-safe design reduce installation time and maintenance risk. Coupled with strong certifications and standard packaging, the fuse supports lower spare part inventories and faster field service, delivering measurable lifecycle cost savings.