Eaton TCF40RNW Fuse - Class CF Time-Delay UL Listed
Part Number: TCF40RNW
Quick Summary
The Eaton Bussmann TCF40RNW fuse provides reliable time-delay protection for 690 VAC power circuits in industrial control panels. Engineers often struggle with nuisance trips and under- or over-protection when guarding variable loads. It carries UL Listed and CSA Certified marks, plus CE RoHS compliance, supporting global regulatory alignment. Compatible with Eaton’s TCF/TCFH60NW family and blade-end mounting, it streamlines stocking, installation, and service, helping to maximize uptime.
Product Information
Extended Description
TCF40RNW Eaton: Eaton Bussmann series TCF fuse, 40 A, 60 Hz, 50 Hz, Dual, Class CF, Black, Non-indicating, Blade end, Class CF, Time delay, 50 kAIC, Glass filled PES, Standard, 690 V
Product Name
Eaton Bussmann series TCF fuse
Catalog Number
TCF40RNW
UPC
051712357241
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
50 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
TCFH60NW
TCF40RNW~CUBEFUSE, TCFRNW 40A NON-IND
TCF40RNW~CUBEFUSE, TCFRNW 40A NON-IND
The Power of Space
The Power of Space
Eaton Specification Sheet - TCF40RNW
Time-delay Class CF construction handles motor inrush and transient surges without nuisance trips. This improves protection coordination and reduces unplanned downtime across motor feeders and control circuits in manufacturing lines. Dual elements provide selective protection and faster fault clearing while avoiding unnecessary outages, especially in feeders and panelboards within automation racks. Blade-end connection enables quick panel mounting and straightforward replacement during maintenance, reducing downtime and training requirements. Glass-filled PES housing offers durable, finger-safe operation in harsh environments and resists thermal stress and abrasion, supporting long service life. Certifications such as UL Listed, CSA Certified, and CE RoHS compliance ensure regulatory conformity across global facilities, simplifying cross-border procurement. Compatibility with the TCFH60NW family enables coordinated protection and streamlined spare-parts management across mixed panel architectures.
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FAQs
Install the TCF40RNW with its blade-end contacts firmly seated in compatible fuse holders or panel assemblies designed for dual-element Class CF devices. Ensure proper alignment with the host bus or holder, tighten mounting hardware to specification, and confirm a secure electrical connection for reliable fault clearing and easy replacement during maintenance.
The TCF40RNW is rated for 40 A at 690 VAC with a high interrupt rating of 50 kAIC, and it operates across 50–60 Hz. These specs support protection of power feeders and motor circuits in industrial environments while handling inrush without nuisance tripping.
Yes. As a Class CF time-delay fuse, the TCF40RNW is specifically designed to tolerate motor inrush and transient surges, enabling selective coordination with upstream breakers and other protective devices while preventing unnecessary outages during motor startup.
The device is UL Listed, CSA Certified, and CE RoHS Compliant. These certifications simplify global procurement, ensure regulatory conformity, and support safe integration into international electrical installations and automated systems.
The TCF40RNW is compatible with Eaton’s TCFH60NW and related family members, enabling consistent protection coordination across panels. Its standard blade-end design and common form factor simplify stocking, replacements, and maintenance planning, reducing lead times and inventory costs.