Eaton TPN-3 Telecommunication Fuse - 100 kAIC, Non Indicating
Part Number: TPN-3
Quick Summary
TPN-3 telecommunication fuse protects telecom circuits from overcurrent, enabling reliable line protection in data and voice networks. Engineers often wrestle with unplanned outages and costly equipment damage; this fuse is designed to minimize those risks. Although data sheet notes show not-applicable warranty and compliances, the design aligns with high-current telecom protection practices and includes a 100 kAIC interrupt rating. Utilizing this fuse can bolster system reliability while keeping installation straightforward and compatible with the Bussmann series ecosystem. Key specs such as 170 Vdc rating, 3 A current, and silver-plated terminals support durable field service in telecom cabinets and remote sites.
Product Information
Extended Description
TPN-3 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 3 A, 100 kAIC, Non Indicating, Current-limiting, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-3
UPC
051712196796
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
3 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-3
The TPN-3 is rated for 170 Vdc and 3 A, delivering targeted protection for telecom power rails while maintaining a compact form factor that fits standard Bussmann series fuse holders. The 100 kAIC interrupt rating provides robust fault-mitigation capability for high-energy faults common in data centers and remote equipment locations. This current-limiting behavior reduces fault energy, which translates to lower arc exposure and safer downstream components, ultimately boosting equipment uptime and maintenance efficiency. Silver-plated terminals improve contact reliability and corrosion resistance, enhancing long-term performance in harsh environments and over extended service intervals. The non-indicating design minimizes nuisance alarms in panels with integrated monitoring, simplifying maintenance workflows and reducing inspection time. With standard packaging and a catalog-numbered footprint (TPN-3), procurement and stocking are streamlined for large-scale installations and service replacements. The 0.56 in by 0.56 in footprint and 2 in height deliver space-efficient protection in rack-oriented layouts, while a 0.5 lb weight aids manual handling during field swaps.
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FAQs
To install the TPN-3, first verify you have a compatible Bussmann series fuse holder designed for this catalog number. Align the fuse body with the holder terminals, seat it firmly, and recheck for full engagement. Use the catalog number TPN-3 and UPC 051712196796 for ordering and inventory control. Ensure the panel is de-energized during replacement and confirm the device’s 170 Vdc rating aligns with your system voltage. This approach minimizes downtime and ensures reliable protection for telecom equipment.
The TPN-3 delivers a 3 A current rating and 170 Vdc voltage rating with a 100 kAIC interrupt capability, making it well-suited for telecom power rails that experience surge and fault conditions. Its current-limiting behavior helps contain fault energy, reducing damage to power supplies and line cards. Its compact form and standard packaging streamline replacement in cabinets and remote enclosures, supporting dependable service in data centers and field deployments.
The data provided lists not-applicable compliances, so you should verify regional regulatory requirements for your installation. In practice, telecom fuses like the TPN-3 are evaluated against local standards such as UL, CE, or IEC in the field. Always reference Eaton’s specification sheet (TPN-3) and confirm with your procurement team to ensure full compliance within your jurisdiction.
Ideal applications include telecom equipment racks, data centers, and remote protection panels where rapid fault clearing and high current capability are required. With a 0.56 in by 0.56 in footprint and 2 in height, the TPN-3 fits compact protection schemes, while silver-plated terminals support reliable connections in environments susceptible to corrosion. The non-indicating design suits monitored panels where simplicity is preferred.
By providing reliable current-limiting protection with a high interrupt rating, the TPN-3 reduces the likelihood of cascading faults that cause downtime and equipment damage. Its standard packaging and clear cataloging simplify stocking and replacements, lowering maintenance labor. The durable construction, including silver-plated terminals, contributes to longer service life in challenging environments, delivering a favorable total cost of ownership for network protection.