Eaton TPM-20 Telecommunication Fuse - 80 Vdc, 20 A, 20 kAIC
Part Number: TPM-20
Quick Summary
The Eaton TPM-20 telecommunication fuse provides fast-acting protection for telecom and data circuits. When circuits face surges or short circuits, downtime and equipment damage can spike, complicating maintenance. This TPM device carries CE marking and is designed as a miniature current-limiting fuse for reliable service in dense telecom enclosures. Its compact form, 80 Vdc rating and 20 kAIC interruption performance support high-density deployments while reducing maintenance costs. In practice, engineers use TPM-20 to meet regulatory requirements and keep networks up with predictable, fast protection. By combining compatibility with standard fuse holders and a non-indicating design, field technicians install quickly and monitor without unnecessary indicators.
Product Information
Extended Description
TPM-20 Eaton: Eaton Bussmann series TPM telecommunication fuse, 80 Vdc, 20 A, 20 kAIC, Non Indicating, Miniature, Current-limiting
Product Name
Eaton Bussmann series TPM telecommunication fuse
Catalog Number
TPM-20
UPC
051712672375
EAN
5027590185264
Product Length/Depth
1 in
Product Height
2.686 in
Product Width
0.375 in
Product Weight
0.047 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
20 A
Interrupt rating
20 kAIC
Voltage rating
80 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 - TPM-20
Feature: 80 Vdc voltage rating provides protection tailored to telecom power environments. Business Impact: safeguards sensitive circuits from overvoltage events, reducing risk of component damage and field recalls. Application: telecom racks, network equipment and data-center branch circuits. Feature: 20 A amperage rating matches common telecom load profiles to prevent nuisance blows while preserving circuit integrity. Business Impact: minimizes unnecessary fuse replacements, lowering maintenance costs. Application: line cards and data transmitters in telecom infrastructure. Feature: 20 kAIC interrupt rating delivers resilience against high fault currents typical of distribution panels and backplanes. Business Impact: enhances system uptime and safety in dense equipment rooms. Application: high-current telecom enclosures and power feeder segments. Feature: miniature, non-indicating design saves panel space and reduces visual clutter. Business Impact: enables quick installation in compact backplanes and lowers wiring complexity. Application: dense cabinet layouts and standardized fuse holders. Feature: current-limiting performance minimizes energy let-through, reducing EMI and arc energy. Business Impact: protects downstream electronics and improves overall reliability. Application: sensitive data-path devices and communication modules. Feature: standard packaging and Bussmann TPM lineage ensures compatibility with existing inventories. Business Impact: simplifies procurement, cross-referencing and stocking processes. Application: telecom manufacturing and field service operations. These characteristics support a robust balance of protection, ease of use and cost efficiency for telecom and data-center networks.
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FAQs
TPM-20 installs like a standard miniature fuse in compatible fuse holders found in telecom cabinets. Verify the circuit is de-energized, align the catalog number TPM-20 with the correct holder, and ensure connection to the protected path. Its compact dimensions (1 in length, 2.686 in height, 0.375 in width) help fit tight panel spaces while maintaining secure electrical contact.
TPM-20 provides a 20 A rating with a 20 kAIC interrupt capability, enabling fast clearing of faults in high-current telecom environments. Its current-limiting design reduces let-through energy, protecting downstream electronics and reducing EMI. This makes it well-suited for network equipment, line cards, and data-center backplanes where reliable protection is essential.
Yes, TPM-20 carries CE marking, indicating conformity with essential safety directives for electrical equipment. While the data confirms CE compliance, other certifications such as SIL or IP ratings are not listed in the provided specifications. For regulatory planning, pair TPM-20 with your plant’s CE-compliant procedures and documentation.
TPM-20 helps reduce downtime by quickly interrupting fault currents and limiting energy transfer to sensitive components. The miniature size supports higher-density rack installations, lowering cabinet real estate costs. Lower maintenance due to non-indicating design simplifies field checks, while compatibility with standard packaging streamlines parts sourcing.
TPM-20 is part of Eaton Bussmann TPM telecommunication fuse family, designed for compatibility with standard fuse holders and TPM catalogs. When replacing, reference the TPM catalog entries for current ratings and voltage compatibility. Cross-references within the Bussmann TPM lineage ensure consistent performance and simplified spare parts management.