Eaton TCF20RNW Fuse - Class CF Time-Delay, UL Listed
Part Number: TCF20RNW
Quick Summary
The Eaton TCF20RNW fuse provides reliable overcurrent protection for industrial control panels. Nuisance trips and cramped DIN-rail enclosures are common pain points in modern automation, and this fuse helps reduce downtime with a 10-second time-delay at 500% rating. UL Listed, CSA Certified, and CE RoHS compliant, it meets essential safety and environmental standards for global deployments. The Class CF time-delay design supports delicate loads while still delivering fast short-circuit clearing, and the blade-end, 35 mm DIN-rail chassis mounting simplifies installation in compact panels. With dual elements and finger-safe construction, it’s a robust choice for protection schemes in industrial environments.
Product Information
Extended Description
TCF20RNW Eaton: Eaton Bussmann series TCF fuse, 20 A, 60 Hz, 50 Hz, Dual, Class CF, Black, Non-indicating, Blade end, Class CF, Time delay, 10 sec at 500%, 50 kAIC, Glass filled PES, Chassis, 35 mm DIN rail, Standard, 690 V
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF20RNW
UPC
051712357203
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 RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
20 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
50 kAIC
Response time
10 sec at 500%
Voltage rating
690 Vac
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
TCFH30NW
TCF20RNW~CUBEFUSE, TCFRNW 20A NON-IND
TCF20RNW~CUBEFUSE, TCFRNW 20A NON-IND
The Power of Space
The Power of Space
Eaton Specification Sheet - TCF20RNW
The 20 A amperage rating and 690 Vac operation with a dual-element Class CF time-delay fuse deliver controlled protection for mixed loads. This combination minimizes nuisance operation during motor inrush and heater startups, reducing downtime and extending equipment life. It is particularly suited for standard 50/60 Hz industrial power, where consistent protection is essential in panel assemblies. Time-delay behavior—explicitly 10 seconds at 500%—allows short-lived overloads to pass without tripping, improving process continuity. In critical applications, this translates to fewer interruptions and smoother machine cycles, especially for load profiles that include short bursts. Mounting and compatibility are streamlined by blade-end connections and 35 mm DIN-rail chassis installation, enabling easy retrofits in existing panels and ensuring reliable contact in crowded electrical cabinets. Materials and safety features add confidence: glass-filled PES housing, finger-safe design, and non-indicating indicators when in operation. The fuse is designed for chassis use and interlocks with standard Bussmann series devices, including use with TCFH30NW for coordinated protection schemes in industrial environments. Compliance and certifications reinforce value: UL Listed, CSA Certified, CE Marked RoHS compliance verify regulatory readiness and market acceptance. These protections support maintenance planning, spare-part sourcing, and long-term ROI in automated lines.
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FAQs
Yes. The TCF20RNW is designed for blade-end connections on a standard 35 mm DIN rail chassis, enabling quick replacement and straightforward retrofits in crowded control panels. It is compatible with Bussmann series layouts and can pair with related protectors like TCFH30NW for coordinated protection in modular enclosures.
The device features a 50 kAIC interrupt rating and a time-delay of 10 seconds at 500% overload. This allows brief inrush surges to pass without nuisance trips, while still providing fast fault clearing during sustained faults, supporting higher equipment uptime in automated lines.
It is particularly well suited for motors, heaters, and mixed loads where inrush is common. The Class CF time-delay design accommodates startup surges, reducing false trips while maintaining protection for connected equipment operating at 50–60 Hz and up to 690 Vac.
Yes. The fuse is UL Listed, CSA Certified, and CE RoHS compliant, ensuring regulatory safety, performance standards, and environmental compliance across global markets. This simplifies procurement, audits, and maintenance planning in multinational facilities.
Dual elements within a single device reduce panel footprint and simplify sourcing. The blade-end connection and 35 mm DIN-rail mounting support compact, modular protection schemes, enabling easier upgrades and consistent fault response across the protection family, such as coordinating with TCFH30NW in modular enclosures.