Eaton TPS-40 Telecommunication Fuse - 100 kAIC
Part Number: TPS-40
Quick Summary
TPS-40 is a telecommunication fuse designed to protect DC telecom power systems and line equipment in cabinet arrays and remote sites. Engineers often contend with nuisance tripping, cascading faults, and costly downtime when safeguarding critical telecom rails, especially in space-constrained enclosures. This TPS-40 delivers 170 Vdc rating, 40 A protection, and a 100 kAIC interrupt capability, while CE marking and RoHS compliance assure market readiness. With ferrule-end connections, glass-melamine construction, and non-indicating operation, it simplifies installation, reduces field wiring errors, and supports reliable, scalable telecom protection programs. This makes TPS-40 a practical choice for data centers, edge devices, and distributed networks where dependable DC protection is mission critical.
Product Information
Extended Description
TPS-40 Eaton: Eaton Bussmann series TPS telecommunication fuse, 170 Vdc, 40 A, 100 kAIC, Non Indicating, Current-limiting, Ferrule end X ferrule end, Glass melamine tube, Silver-plated brass ferrules
Product Name
Eaton Bussmann series TPS telecommunication fuse
Catalog Number
TPS-40
UPC
051712197052
Product Length/Depth
0.56 in
Product Height
0.87 in
Product Width
0.56 in
Product Weight
0.2 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
40 A
Interrupt rating
100 kAIC
Voltage rating
170 Vdc
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - TPS-40
Bussmann Telpower TPS non-indicating power distribution fuses data sheet no. 5009
Bussmann Telpower TPS non-indicating power distribution fuses data sheet no. 5009
Datasheet - FNQ-30
Feature: High interrupt rating of 100 kAIC. Business Impact: Minimizes fault energy to protect downstream equipment like DC power rails and protection switchgear during short-circuits, reducing repair costs and downtime. Application: Ideal for telecom backplanes and data-center DC distribution where high-energy faults can occur. Feature: Current-limiting behavior. Business Impact: Limits fault current faster, protecting fuses, cables, and power supplies from undue stress and arcing. Application: Critical in dense telecom cabinets and outdoor enclosures exposed to transient surges. Feature: 170 Vdc voltage rating. Business Impact: Ensures compatibility with standard telecom DC rails, enabling reliable protection without overrating components. Application: Suitable for 48 V and higher DC distribution schemes in telecom and industrial networks. Feature: Ferrule-end x ferrule-end connection. Business Impact: Streamlines installation and replacement in existing assemblies, reducing commissioning time and wiring errors. Application: Fits common rack-mount and cabinet fuse panels in office and outdoor environments. Feature: Glass-melamine tube construction. Business Impact: Delivers robust resistance to vibration and temperature cycling, improving long-term reliability in harsh environments. Application: Data centers, edge facilities, and telecom cabinets subject to temperature variation. Feature: Non-indicating operation. Business Impact: Simplifies panel design by removing needless fuse indicators, lowering maintenance overhead and potential misreads. Application: Space-constrained or clean-panel installations where status indicators are unnecessary. Feature: Compliance highlights CE Marked and RoHS. Business Impact: Meets regulatory requirements for European and global deployments, accelerating time-to-market. Application: International telecom deployments and OEM integrations requiring standard-compliant protection. Overall, TPS-40 combines rugged construction with precise DC protection to deliver dependable, scalable performance across telecom power architectures. It supports compatible replacement strategies, streamlined maintenance, and measurable reliability improvements in routine operations.
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FAQs
When replacing TPS-40, ensure ferrule-end connections match the panel’s ferrule terminals and that the existing space accommodates the device's 0.56 in width and 0.87 in height. Verify the 170 Vdc rating and 40 A current rating align with the DC rail specification. Use the standard packaging for easy inventory management and follow proper de-energization procedures before replacement.
TPS-40 provides 40 A operation with a 170 Vdc rating and a 100 kAIC interrupt rating, offering current-limiting protection. In a fault, it rapidly limits current to minimize energy imparted to conductors and equipment, reducing arcing and potential damage to power supplies and cabling in telecom installations.
Yes. TPS-40 is CE marked and RoHS compliant, ensuring compliance with European regulations and global environmental standards. This makes it suitable for international deployments in telecom cabinets, data centers, and distributed DC power systems without needing additional certifications.
TPS-40 is well-suited for DC power distribution in telecom cabinets, data centers, edge devices, and distributed networks. Its ferrule-end connections and non-indicating operation simplify installation and maintenance, while its 170 Vdc rating ensures compatibility with typical telecom DC rails.
TPS-40 can reduce downtime and maintenance costs through reliable fault interruption (100 kAIC) and current-limiting protection, lowering energy loss and equipment damage during faults. Its regulatory compliance, ease of replacement, and rugged construction also shorten time-to-market and extend field lifespan of telecom power systems.