Eaton TPN-12 Telecommunication Fuse - 100 kAIC Current-limiting
Part Number: TPN-12
Quick Summary
The Eaton TPN-12 telecommunication fuse protects telecom equipment from overcurrent, delivering reliable current-limiting protection for network systems. A common pain point in telecom deployments is nuisance tripping and difficult integration with dense gear, which can drive downtime and maintenance costs. While the data here lists no explicit CE, SIL, or IP certifications for this model, engineers should weigh standard telecom protection expectations against project requirements. As part of the Eaton Bussmann series, this fuse supports compact, dependable current-limiting protection suitable for network cabinets and field equipment, offering a straightforward path to reliable protection without complex signaling needs.
Product Information
Extended Description
TPN-12 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 12 A, 100 kAIC, Non Indicating, Current-limiting, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-12
UPC
051712196697
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
12 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-12
The TPN-12 delivers 12 A amperage rating with a 170 Vdc voltage rating and a 100 kAIC interrupt rating, providing robust short-circuit protection for telecom circuits. Business impact: rapid fault clearing reduces downstream damage and downtime in mission-critical networks. Application: ideal for telecom cabinets and network gear where space is at a premium and reliable protection is essential. The non-indicating design simplifies inventory management and reduces maintenance overhead, while the current-limiting action minimizes arc energy and conductor wear, improving equipment longevity. A silver-plated terminal enhances conductivity and corrosion resistance, translating to lower contact resistance over time and more consistent protection in harsh telecom environments. The fuse’s compact footprint—0.56 in by 0.56 in with a height of 2 in and a weight around 0.5 lb—offers straightforward installation in standardized holders and enclosures, supporting quick field replacement and scalable protection. Packaging is listed as Standard, aligning with common procurement and stocking practices across industrial telecom projects. In practice, this means fewer compatibility questions during deployment and a smoother path from specification to operation, minimizing project risk and accelerating time-to-protected-service.
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FAQs
TPN-12 is intended for telecommunications equipment and network infrastructure where fast, reliable overcurrent protection is required. It suits telecom cabinets, line terminations, and data-center networking gear operating up to 170 Vdc with a 12 A rating. The current-limiting design helps prevent fault propagation and minimizes equipment damage during faults, supporting uptime and service continuity.
TPN-12 provides a 12 A amperage rating, a 170 Vdc voltage rating, and a 100 kAIC interrupt rating. It is described as non-indicating, current-limiting protection. This sizing supports fast fault clearing in telecom power paths and aligns with Bussmann series design principles for reliable, space-efficient protection in network equipment.
No. The TPN-12 is a non-indicating fuse, meaning it does not provide a built-in visual status indicator. This can simplify inventory and reduce potential confusion in mixed-protection panels, though it may require external fault indication methods in some installations.
The fuse has a compact footprint of 0.56 in by 0.56 in with a 2 in height and roughly 0.5 lb weight, making it suitable for standard fuse holders and tight telecom enclosures. Its packaging is listed as Standard, supporting straightforward stocking and replacement in typical network cabinets and field installations.
The provided data lists Compliances as Not Applicable, meaning no explicit CE, SIL, or IP certifications are stated here. For regulated deployments, verify with Eaton’s datasheet or catalog to confirm current regulatory readiness and to identify any project-specific certification requirements before fielding the part.