Eaton TCF70RNW Fuse - Class CF Time-Delay, 30 kAIC
Part Number: TCF70RNW
Quick Summary
Eaton Bussmann TCF70RNW fuse provides reliable overcurrent protection for industrial control panels and motor circuits. This solution helps prevent unexpected downtime caused by nuisance trips in systems with varying loads. With UL Listed, CSA Certified, CE Marked, and RoHS compliance, it supports safe operation across global projects. The TCF70RNW combines a 70 A rating and 690 V suppression in a dual-element Class CF time-delay design, ideal for power distribution and equipment protection. By standardizing on this fuse family, maintenance teams gain consistent performance, easier stocking, and faster replacements—reducing downtime and total cost of ownership while maintaining safety and compliance in electrical protection strategies.
Product Information
Extended Description
TCF70RNW Eaton: Eaton Bussmann series TCF fuse, 70 A, 60 Hz, 50 Hz, Dual, Class CF, Black, Non-indicating, Blade end, Time delay, Class CF, 30 kAIC, Glass filled PES, Standard, 690 V
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF70RNW
UPC
051712357289
Product Length/Depth
3.01 in
Product Height
2.125 in
Product Width
1 in
Product Weight
0.284 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
70 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
30 kAIC
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
Special features
Finger safe
Used with
TCFH100NW
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Bussmann series Fuseology
Eaton Specification Sheet - TCF70RNW
Feature: Dual-element Class CF time-delay design provides controlled fault clearing while accommodating motor inrush. Business Impact: Minimizes nuisance trips and protects delicate control electronics, reducing unplanned downtime. Application: Suitable for motor starters and protection in 690 V panels. Feature: 70 A amperage rating with 690 VAC operation supports medium-power equipment. Business Impact: Enables safe expansion of drive systems with fewer replacements and longer service intervals. Application: Power distribution in industrial facilities. Feature: Blade end connections allow quick, secure installation. Business Impact: Lower commissioning time and improved reliability in panel assemblies. Application: Standard Bussmann style fuse holders and snap-in bases. Feature: Finger-safe, glass-filled PES body enhances durability in harsh environments. Business Impact: Increases safety for technicians and reduces environmental wear. Application: Production floors with frequent maintenance. Feature: Compliance and certifications UL Listed, CSA Certified, CE Marked, RoHS. Business Impact: Streamlines regulatory approvals and cross-border deployments. Application: Global manufacturing environments. Feature: Used with TCFH100NW for replacement paths. Business Impact: Simplifies spare parts planning and asset upgrades. Application: Upgrade projects and preventive maintenance programs.
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FAQs
TCF70RNW uses blade-end connections for quick, secure insertion in standard Bussmann-style fuse holders. Ensure your panel has appropriate blade contacts and clearance for a 3.01 in length and 2.125 in height. Use with compatible base units such as TCFH100NW for replacement paths, and observe 690 VAC insulation and heat dissipation requirements to prevent nuisance trips.
The fuse provides 70 A at up to 690 VAC with a 50/60 Hz rating and an interrupt rating of 30 kAIC, supporting motor starting surges and short-circuit events. Its Class CF time-delay design reduces nuisance trips during inrush while maintaining fast clearing for faults, delivering reliable protection in dynamic industrial environments.
Yes. The TCF70RNW is designed for high-voltage motor protection with a 690 VAC rating and 70 A, enabling safe interruption of faults. Its time-delay characteristic accommodates motor inrush, while the UL/CSA/CERoHS certifications ensure compliance across international motor control panels and distributed systems.
TCF70RNW is UL Listed and CSA Certified, CE Marked, and RoHS compliant. These certifications verify safety, performance, and regulatory compliance for global use in electrical protection systems, panels, and industrial equipment. The fuse’s Class CF, 690 VAC rating, and 30 kAIC interrupt rating further support compliant protection strategies.
By minimizing nuisance trips through a robust time-delay design and high interrupt rating, the TCF70RNW reduces unexpected downtime and extends equipment life. Its compatibility with standard bases (like TCFH100NW) simplifies stocking, replacements, and maintenance planning, delivering faster repairs and lower total cost of ownership in industrial protections.