Eaton TPN-1 Telecommunication Fuse - 170Vdc, 100 kAIC
Part Number: TPN-1
Quick Summary
Eaton TPN-1 telecommunication fuse provides fast overcurrent protection for telecom systems. Design engineers often struggle with nuisance trips and slow fault isolation when protection devices don’t react quickly enough. While the datasheet notes Not Applicable for warranty and compliances, telecom protection components typically align with standards such as CE marking, UL recognition, and IP-rated enclosures where required. The TPN-1 combines current-limiting performance, a compact footprint, and silver-plated terminals to deliver reliable DC protection across cabinet rails while enabling straightforward installation and scalable deployments.
Product Information
Extended Description
TPN-1 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 1 A, 100 kAIC, Non Indicating, Current-limiting, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-1
UPC
051712196659
EAN
5027590227797
Product Length/Depth
0.56 in
Product Height
2 in
Product Width
0.56 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
1 A
Interrupt rating
100 kAIC
Voltage rating
170 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - TPN-1
Feature: Current-limiting protection with a 1 A rating reduces fault energy and protects sensitive telecom equipment. Business Impact: Shorter outage times and lower arc energy during faults, improving network uptime. Application: DC power rails in telecom cabinets and data-center infrastructure. Feature: 170 Vdc voltage rating with a 100 kAIC interrupt capability. Business Impact: Robust protection for surge and short-circuit events in high-energy DC environments, reducing component wear. Application: Telecom power distribution and DC bus protection. Feature: Silver-plated terminals for enhanced conductivity and corrosion resistance. Business Impact: Reliable interconnection over the device life in challenging environments, lowering contact resistance. Application: Harsh environments and long service intervals. Feature: Non-indicating design with standard packaging. Business Impact: Lower part costs and simpler integration in systems with external fault monitoring. Application: Simple replacements in standard fuse blocks while maintaining system simplicity. Feature: Compact dimensions (0.56 in x 0.56 in x 2 in) and 0.5 lb weight. Business Impact: Easy retrofits and space-efficient mounting in crowded telecom enclosures. Application: Space-constrained telecom cabinets and distribution frames.
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FAQs
Begin by de-energizing the equipment and confirming access to the fuse holder. Remove the existing fuse, ensure the holder accepts a 1 A, 170 Vdc device, and insert the TPN-1 with the silver-plated terminals oriented for proper contact. Verify seating and re-energize the circuit to confirm normal operation. The unit uses a standard packaging type, enabling a straightforward drop-in replacement in compatible telecom racks.
The TPN-1 is rated for 1 A amperage, 170 Vdc voltage, and provides a 100 kAIC interrupt rating. It is a current-limiting, non-indicating fuse with silver-plated terminals, designed to protect DC telecom circuits while minimizing fault energy and ensuring rapid fault isolation in telecom cabinets and DC power rails.
Yes. The TPN-1 is designed for telecom DC rails and cabinet protection, delivering fast fault interruption and reliable protection in DC power distribution networks. Its compact form factor and high interrupt rating make it suitable for space-constrained telecom equipment racks and distribution frames, supporting uptime and protective coordination in data-center environments.
The data provided lists Not Applicable for warranty and compliances. For region-specific approvals, consult Eaton’s datasheet and local regulations. In practice, telecom protection devices commonly reference CE, UL, or other regional standards, but please verify current certifications with Eaton or your local distributor before deployment in regulated environments.
The current-limiting design minimizes fault energy, reducing switchgear wear and downtime during fault events. Silver-plated terminals improve contact reliability, lowering maintenance needs in corrosion-prone environments. The compact, non-indicating design reduces part count and simplifies installations, delivering lower total cost of ownership over the device life cycle in telecom cabinets and DC power rail applications.