Eaton TPN-5 Telecommunication Fuse - 100 kAIC, Bussmann Series
Part Number: TPN-5
Quick Summary
The Eaton TPN-5 telecommunication fuse is a current-limiting protective device designed for telecom and data-center DC power rails. A common challenge is locating failed fuses in crowded racks without clear indication, risking downtime and elusive fault diagnostics. The datasheet notes a 170 Vdc rating, 5 A amperage, and a 100 kAIC interrupt rating, paired with a non-indicating design to simplify fault tracing. This compact fuse supports efficient power distribution while minimizing maintenance and replacement costs. While no specific SIL, CE, or IP certifications are listed in the data, verify region-specific compliance for your installation. In practice, it delivers reliable protection for network equipment and DC distributions while integrating smoothly with Bussmann-series components.
Product Information
Extended Description
TPN-5 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 5 A, 100 kAIC, Non Indicating, Current-limiting, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-5
UPC
051712196888
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
5 A
Interrupt rating
100 kAIC
Voltage rating
170 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
170 Vdc voltage rating ensures compatibility with standard telecom DC power rails and minimizes insulation concerns, while the current-limiting action reduces arc energy during fault events, protecting upstream circuitry. The 5 A amperage rating provides precise protection for common telecom loads, helping to avoid nuisance trips and unnecessary equipment wear. A high 100 kAIC interrupt rating delivers rapid fault clearing for robust protection of power rails and sensitive devices in data centers and telecom cabinets. The non-indicating design reduces panel clutter, improving reliability of visual fault assessment in dense rack layouts, though periodic functional checks remain important. Silver-plated terminals offer corrosion resistance and low contact resistance, enhancing long-term connection integrity in challenging environments. With a compact width and height of 0.56 in by 2 in, plus a 0.56 in depth, it fits slimline enclosures and BIU/IDC configurations, delivering easier retrofits and faster installations. Compatibility with the Bussmann series enables streamlined spares management and standardized field service.
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FAQs
Install the TPN-5 in standard fuse holders or carrier assemblies designed for Bussmann-series telecommunication fuses. Ensure the circuit operates at or below 170 Vdc and the load current remains within the 5 A rating. Use proper torque on terminal connections and verify mechanical fit within the enclosure to minimize vibration-induced wear. Confirm that the rack wiring follows the recommended conductor sizing and clearances for safety and performance.
The TPN-5 provides current-limiting protection with a 5 A amperage rating and a 170 Vdc voltage rating, paired with a 100 kAIC interrupt rating. This combination enables rapid fault clearing and arc energy reduction, protecting DC rails and connected equipment in telecom systems. Its compact form factor supports dense installations, while the current-limiting characteristic helps maintain system uptime by reducing collateral damage during faults.
Yes. The TPN-5 is designed for telecom and DC power rails, offering high interrupt capability (100 kAIC) and current-limiting protection, which are essential for safeguarding critical data-center DC distributions. Its compact dimensions allow it to fit in tight cabinets, and its non-indicating design reduces panel clutter while delivering reliable fault protection for DC paths and network equipment.
The data provided does not list SIL, CE, IP, or other specific certifications. Users should verify regional and project-specific compliance requirements with the supplier or Eaton before deployment. While the device provides standard electrical ratings, regulatory alignment may depend on the installation locale and application standards.
The TPN-5 is a non-indicating fuse, meaning it does not provide visual fault indication. Routine maintenance should include periodic electrical testing and insulation checks, as well as spare-stock planning for the Bussmann-series line. Its current-limiting property reduces fault energy and wear on downstream components, contributing to longer equipment life and potentially lower maintenance costs in dense telecom or data-center DC networks.