Eaton TPN-500 Telecommunication Fuse - 100 kAIC
Part Number: TPN-500
Quick Summary
The Eaton Bussmann TPN telecommunication fuse protects telecom circuits from surge currents and faults in data networks. Selecting the right fuse can be challenging when you must balance current rating, interrupt capacity, and reliable field performance across harsh telecom environments. Industry practice typically relies on certifications such as CE for safety, SIL for functional safety, and IP for enclosure protection, but the provided data does not list these compliances; please consult Eaton's datasheet to confirm. With a 500 A amperage rating, 170 Vdc voltage rating, and a 100 kAIC interrupt rating, this unit delivers robust protection while fitting into standard telecom chassis. It supports non-indicating operation and standard packaging, aligning with cost-effective installation and maintenance workflows.
Product Information
Extended Description
TPN-500 Eaton: Eaton Bussmann series TPN telecommunication fuse, 170 Vdc, 500 A, 100 kAIC, Non Indicating, Current-limiting, Silver-plated terminal
Product Name
Eaton Bussmann series TPN telecommunication fuse
Catalog Number
TPN-500
UPC
051712196901
Product Length/Depth
2.5 in
Product Height
1.38 in
Product Width
2.5 in
Product Weight
3.35 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
500 A
Interrupt rating
100 kAIC
Voltage rating
170 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
TPN-500~TELPOWER FUSE
TPN-500~TELPOWER FUSE
Bussmann series Fuseology
Eaton Specification Sheet - TPN-500
The TPN-500 fuse provides high current protection with a 500 A amperage rating and 170 Vdc voltage rating, offering a 100 kAIC interrupt capacity that safeguards telecom power distribution from severe fault events. This feature translates to minimized equipment damage and faster recovery, particularly in data-center and network environments where uptime is critical. The current-limiting design reduces arc energy during fault conditions, which lowers conductor stress and improves panel safety during maintenance or replacement cycles. Silver-plated terminals enhance conductivity and corrosion resistance, supporting reliable long-term operation in challenging indoor telecom enclosures. As part of the Bussmann series, the TPN-500 ensures seamless compatibility with existing telecom protection schemes and simplifies cross-referencing for retrofits or expansions. Standard packaging and a compact footprint enable easy procurement, handling, and installation within compact rack-mount or enclosure layouts. The non-indicating nature reduces panel complexity, though periodic testing and monitoring remain advisable for proactive maintenance. Overall, this fuse aligns with industrial protection standards while delivering predictable performance and overall life-cycle cost advantages.
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FAQs
TPN-500 is designed for telecom power distribution, data-center infrastructure, and network equipment protection. It integrates with standard Bussmann series hardware and enclosures, fitting typical telecom racks and distribution panels. With a 2.5 in x 2.5 in x 1.38 in footprint and 3.35 lb weight, it suits compact, retrofit, or expansion projects while maintaining robust protection at 170 Vdc and 500 A.
Current-limiting reduces fault energy during preseizure and short-circuit events, minimizing arc flash risk and conductor damage. This translates to faster fault clearance, safer maintenance, and reduced downtime in telecom power racks. For data centers and network equipment, the protection translates into less collateral damage and improved system reliability during surge conditions.
The provided data lists Compliances as Not Applicable, and there is no explicit CE or IP rating shown. For regulatory confirmation, consult Eaton’s official datasheet or contact Eaton technical support to verify current certification coverage and applicable regional requirements before installation in regulated environments.
TPN-500 uses silver-plated terminals for enhanced conductivity and corrosion resistance, with a standard packaging type suitable for OEM and field installs. The unit dimensions are approximately 2.5 in length, 2.5 in width, and 1.38 in height, weighing about 3.35 lb. It is a non-indicating fuse, simplifying panel presentation while requiring routine monitoring as part of maintenance.
Because the fuse is non-indicating, periodic fuse-status verification and replacement planning are essential to sustain protection coverage. The high interrupt rating (100 kAIC) and current-limiting design help minimize downtime and equipment damage, delivering a favorable total cost of ownership. Procuring via the TPN-500 catalog number ensures consistent cross-referencing and faster spare parts management.