Bussmann TPL-BA Eaton Series T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$354.93

Bussmann TPL-BA Eaton Series Telecommunication Fuse, 70A 170Vdc

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Model: TPL-BA
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$354.93
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Bussmann TPL-BA Eaton Series Telecommunication Fuse, 70A 170Vdc

The Bussmann TPL-BA is an Eaton series TPL telecommunication fuse engineered for 170 Vdc, 70A DC power circuits requiring 100 kAIC interrupting capacity. This current-limiting, non-indicating fuse features a bolted blade end x bolted blade end configuration with silver-plated terminals for low-resistance, high-integrity electrical connections. Because the TPL-BA is current-limiting, it restricts peak let-through current and energy during a fault, helping protect conductors, bus structures, and sensitive downstream equipment. Built for telecommunication and DC power protection applications, the TPL-BA delivers dependable overcurrent protection in demanding power environments where high fault currents must be safely and quickly interrupted.

Key Features

  • Amperage Rating: 70A continuous current rating suited for telecommunication DC power circuit protection.
  • Voltage Rating: 170 Vdc rating engineered for demanding DC telecommunication power systems.
  • Interrupting Rating: 100 kAIC interrupting capacity supports safe operation in high fault-current environments.
  • Current-Limiting Design: Current-limiting operation restricts let-through energy to help protect downstream equipment, conductors, and bus structures.
  • Non-Indicating Construction: Non-indicating fuse body consistent with standard Eaton Bussmann TPL-series telecommunication fuses.
  • Terminal Configuration: Bolted blade end x bolted blade end termination provides a secure mechanical and electrical connection at both ends of the fuse.
  • Silver-Plated Terminals: Silver-plated terminal finish enhances conductivity, reduces contact resistance, and helps resist corrosion at the connection points.
  • Series: Part of the Eaton Bussmann TPL series of telecommunication fuses.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Telecommunication Power Protection Circuits
  • DC Power Distribution Systems
  • Central Office and Data Center Power Equipment
  • Battery Backup and Rectifier Protection
  • Commercial and Industrial DC Power Circuits
  • High Fault-Current DC Power Environments

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the TPL series is engineered specifically for the demands of telecommunication DC power systems. With a current-limiting design, a 100 kAIC interrupting rating, a 170 Vdc / 70A rating, and silver-plated bolted blade terminals, the TPL-BA is built to deliver reliable, code-compliant overcurrent protection for critical telecommunication and DC power infrastructure where dependable performance under fault conditions is essential.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Type:
Fuse
Product Group:
Circuit Protection
Product Subgroup:
Fuses
Voltage Rating:
170V DC
Product Width:
1 in
Connection:
Bolted blade end x bolted blade end
Product Weight:
0.19 lb
Amperage Rating:
70A
Product Length:
1 in
Product Height:
2.66 in
Compliances:
RoHS Compliant

Bussmann TPL-BA – Frequently Asked Questions

1) Is the TPL-BA an AC fuse or DC only?
It is a DC-rated device: 170 Vdc, 70A, built for telecom DC power protection, battery backup and rectifier circuits, and DC distribution. Do not substitute it into an AC branch circuit expecting an AC rating; the rating published for it is DC.
2) How does the TPL-BA mount, and do I need a fuse clip or block?
Bolted blade at both ends, so it bolts directly to bus bars, terminal pads, or a bolt-down fuse block. There are no fuse clips involved. The terminals are silver plated to keep contact resistance low, so clean, flat mating surfaces and properly torqued hardware matter for a long-term low-resistance joint. Mounting bolts and washers come from your bus hardware, not the fuse.
3) I need to order a replacement telecom fuse, what is the exact part number for the 70A TPL?
The 70A, 170 Vdc unit in the Eaton Bussmann TPL telecommunication series is part number TPL-BA. The TPL series is sized by amperage with different suffixes, so ordering by amperage alone is not enough. Specify TPL-BA to get 70A at 170 Vdc with the bolted blade terminations.
4) Does the TPL-BA have a blown fuse indicator?
No. The TPL-BA is a non-indicating fuse, so there is no pop-up pin or flag and no visual signal at the fuse itself when it opens. In a central office or data center DC plant you will be relying on panel alarms, the rectifier or distribution panel's own fault monitoring, or a voltage check across the fuse to find the open device.
5) Where is a TPL-BA typically used in a central office or data center power system?
Standard spots are rectifier and battery backup protection, DC power distribution feeds, and central office or data center power equipment, plus industrial DC circuits with high available fault current. In each case the fuse is sitting on bolt-down bus work protecting the cable run and downstream gear from a battery-sourced fault.
How fast can I get the Bussmann TPL-BA 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 TPL-BA come with a warranty?
Absolutely. The Bussmann TPL-BA 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 TPL-BA?
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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