Bussmann TPN Series 170 Vdc No...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$210.08
Bussmann TPN Series 170 Vdc Non-Indicating Current-Limiting Telecommunication Fuse

Bussmann TPN Series 170 Vdc Non-Indicating Current-Limiting Telecommunication Fuse

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Model: TPN-30

In Stock (leaves warehouse same day if ordered before 3pm ET)

$210.08
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Bussmann TPN Series Non-Indicating Current-Limiting Telecommunication Fuse

The Bussmann TPN Series Non-Indicating Current-Limiting Telecommunication Fuse from Eaton Bussmann is engineered for DC-powered telecommunication and central office equipment requiring dependable overcurrent protection. This TPN series fuse carries a 170 Vdc voltage rating with a 100 kAIC interrupt rating, delivering current-limiting performance that reduces let-through energy during fault conditions. Built with ferrule end x ferrule end terminals finished in silver plating for a low-resistance connection, the TPN series is available in amp ratings from 1A up to 600A across 30 selectable ratings to match a wide range of circuit protection requirements. As a non-indicating fuse, it offers straightforward, reliable protection for demanding DC power applications.

Key Features

  • Amp Rating Range: Available in 30 amp rating options spanning 1A to 600A to precisely match circuit protection needs.
  • Voltage Rating: 170 Vdc rating suited for DC telecommunication power systems.
  • Interrupt Rating: 100 kAIC current-limiting design withstands high fault currents without excessive let-through energy.
  • Current-Limiting Design: Limits peak fault current and energy to help protect downstream components and wiring.
  • Non-Indicating Fuse Body: Standard non-indicating construction for straightforward overcurrent protection.
  • Terminal Configuration: Ferrule end x ferrule end terminals for compatibility with standard telecommunication fuse holders and blocks.
  • Finish: Silver-plated terminals provide a reliable, low-resistance electrical connection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Telecommunication and Central Office Power Systems
  • DC Power Distribution and Battery Backup Systems
  • Network Equipment and Data Center Power Protection
  • Industrial DC Control Circuit Protection
  • Commercial and Industrial Electrical Installations Requiring Current-Limiting Fuses

Why Bussmann?

Eaton Bussmann is a recognized name in circuit protection, and the TPN series telecommunication fuse reflects that standard with its current-limiting design, 100 kAIC interrupt rating, and silver-plated ferrule terminals for dependable contact. Choosing a Bussmann TPN series fuse across its full 1A to 600A rating range helps ensure code-compliant, reliable overcurrent protection for professional DC power and telecommunication installations.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Type:
Fuse
Series:
TPN
Voltage Rating:
170 Vdc
Amperage Rating:
1A - 600A
Product Finish:
Silver-Plated
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann TPN-30 – Frequently Asked Questions

1) Will the TPN fuse fit my existing telecom fuse holder or fuse block?
The TPN is built ferrule end by ferrule end, so it drops into standard telecommunication fuse holders and blocks that accept ferrule-terminal fuses. It is not a bolt-in or blade-style body, so a holder prepped for bolted tabs is the wrong mount for it.
2) Does the TPN fuse have a blown-fuse indicator or alarm pin?
No. The TPN is the non-indicating version, meaning there is no pop-out pin or flag to trigger a remote alarm contact. If your central office panel relies on an indicating fuse to signal a fault, the TPN will not drive it, and you'll want an indicating telecom fuse instead.
3) What interrupting rating do I get with a Bussmann TPN fuse on a high fault-current battery string?
100 kAIC. Battery plants can deliver very high available fault current, and the TPN's current-limiting design cuts the peak let-through current and energy during a fault, which protects downstream busbar, wiring and equipment rather than just clearing the circuit.
4) What amp ratings does the Bussmann TPN telecom fuse come in?
Thirty ratings, from 1A up to 600A: 1, 3, 5, 6, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250, 300, 400, 500 and 600 amps. Part numbers follow the amp value directly, so a 125 amp fuse is TPN-125 and a 600 amp is TPN-600.
5) How do I order the right Bussmann TPN fuse for a -48V power board?
Amp rating is the only thing you select. Everything else on the TPN is fixed: 170 Vdc, 100 kAIC, non-indicating, ferrule x ferrule with silver plating. Pick the amp value that suits the circuit and order the matching part number, for example TPN-30 for 30 amps or TPN-200 for 200 amps.
6) Why are the TPN fuse terminals silver plated, and does it matter for my connection?
The ferrules are silver plated to keep contact resistance low at the clip or holder. On a DC power feed carrying continuous load, a high-resistance joint means heat and voltage drop, so plated contacts matter more here than on a light control circuit. Keep the fuse clips clean and tight for the plating to do its job.
7) Can I use a TPN fuse outside telecom, like on an industrial DC control circuit?
Yes, within its ratings. Beyond central office and battery backup power, the TPN is applied on DC power distribution, network and data center power, and industrial DC control circuits. The limits are the same wherever you put it: DC only, up to 170 volts, and an amp rating chosen for the circuit's continuous load.
How fast can I get the Bussmann TPN-30 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann TPN-30 come with a warranty?
Absolutely. The Bussmann TPN-30 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann TPN-30?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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