Eaton TPN-50 Telecommunication Fuse High-current 100 kAIC
Part Number: TPN-50
Quick Summary
Eaton TPN-50 telecommunication fuse protects DC telecom circuits with fast, current-limiting protection for switchgear and distribution panels. Engineers often struggle with nuisance trips and incomplete protection when fuses don’t handle high short-circuit currents or DC load demands. In telecom protection, key considerations include voltage rating, interrupt capacity, and compatibility with ferrule-end terminations, alongside common regulatory expectations such as CE, UL, and RoHS. This model delivers 170 Vdc operation, a 50 A rating, and a 100 kAIC interrupt rating, enabling reliable protection without sacrificing availability. The combination of ferrule-end connections and non-indicating status supports straightforward integration in industrial control panels and data-center applications while aligning with Eaton Bussmann product families for cross-compatibility.
Product Information
Extended Description
TPN-50 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 50 A, 100 kAIC, Non Indicating, Current-limiting, Ferrule end X ferrule end, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-50
UPC
051712196895
Product Length/Depth
0.76 in
Product Height
3 in
Product Width
0.76 in
Product Weight
0.12 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
50 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 complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - TPN-50
Feature: 170 Vdc operating voltage with 50 A amperage rating and 100 kAIC interrupt capacity. Business Impact: Provides robust protection for DC telecom networks against high-energy faults, reducing equipment damage and downtime. Application: Ideal for telecom switching gear and DC distribution panels in data centers and central offices. Feature: Ferrule end x ferrule end termination. Business Impact: Simplifies field installation and replacement with widely used termination style, lowering maintenance time and error-rate. Application: Fits standard ferrule terminations in enclosure rails and protection cabinets. Feature: Current-limiting fuse design. Business Impact: Limits fault current energy, improving arc-quenching performance and protective margins. Application: Critical in sensitive fiber-optic and telecom line cards where fast clearing minimizes collateral damage. Feature: Non-indicating status. Business Impact: Reduces visual misreads in crowded panels; can be monitored via upstream protection schemes to minimize false alarms. Application: Suits centralized protection schemes with remote sensing. Feature: Ferrule-end compatibility and standard packaging. Business Impact: Enables quick stocking and universal compatibility within the Eaton Bussmann range. Application: Streamlines procurement across telecom and industrial protection inventories.
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FAQs
The TPN-50 delivers 170 Vdc operation with a 50 A rating and 100 kAIC interrupt capacity, designed for robust protection in DC telecom panels. Its ferrule-end terminations allow quick, reliable field installation, reducing downtime during replacements. This combination supports high availability in switchgear and distribution applications while maintaining compatibility with Eaton Bussmann families.
The TPN-50 is rated for 170 Vdc, 50 A, and 100 kAIC, indicating its ability to safely interrupt high-energy faults at DC voltages common in telecom and data-center equipment. The current-limiting design limits fault energy, protecting adjacent components and cables from damage while helping meet short-circuit response requirements in standard protection schemes.
Yes. With a 170 Vdc rating and 100 kAIC interrupt capability, the TPN-50 is well-suited for DC telecom applications and data-center protection where fast clearing and high fault-current capability are essential. Its ferrule-end termination supports straightforward panel integration, and its non-indicating design simplifies panel layouts when status is monitored upstream.
Ferrule-end fuses are designed for quick, reliable insertion into standard ferrule terminals. When installing, ensure compatible ferrule dimensions and secure contact to prevent loose connections. Use proper torque on ferrule clamps, inspect for corrosion-free terminals, and verify alignment with the enclosure to maintain consistent protection and ease of replacement during maintenance.
You can access the Eaton Bussmann datasheet and catalog references for the TPN-50 through Eaton’s official resources: the Eaton Specification Sheet for TPN-50 and the Bussmann catalog entries. These documents provide detailed electrical ratings, dimensional data, and installation guidance to support design-in and field installation.