Bussmann Eaton Series FNA Time...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$87.61
Bussmann Eaton Series FNA Time-Delay Dual-Element Fuse

Bussmann Eaton Series FNA Time-Delay Dual-Element Fuse

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Model: FNA-10

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

$87.61
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Bussmann Eaton Series FNA Time-Delay Dual-Element Fuse

The Bussmann Eaton series FNA is a time-delay, dual-element fuse engineered for inductive load circuits and electronic circuits, offering dependable overcurrent protection where inrush currents or motor-starting loads are present. Rated at 250 V with an interrupting rating of 200 kAIC at 250 Vac and 10 kAIC at 125 Vac, this Standard-grade fuse features ferrule end x ferrule end terminals and a silver-plated pin for a secure, low-resistance connection. The FNA series is available in amp ratings from 1A through 25A, allowing selection of the precise protection level for a given circuit.

Key Features

  • Amp Rating Range: Available from 1A to 25A across the FNA series to match circuit load requirements.
  • Time-Delay, Dual-Element Design: Built to ride through temporary inrush and motor-starting currents in inductive load circuits and electronic circuits.
  • Terminal Style: Ferrule end x ferrule end construction for compatible fuse block and holder installations.
  • Silver-Plated Pin: Silver-plated pin construction supports a stable, low-resistance connection point.
  • High Interrupting Rating: Rated 200 kAIC at 250 Vac and 10 kAIC at 125 Vac for reliable performance under fault conditions.
  • Non-Indicating: Non-indicating design consistent with standard FNA series construction.
  • Voltage Rating: Rated 250 V for use across the FNA series voltage class.
  • Standard Grade: Manufactured to Eaton Bussmann's Standard grade specification.

Technical Specifications

  • Series: FNA
  • Fuse Type: Time-Delay, Dual-Element
  • Amp Rating Range: 1A - 25A
  • Voltage Rating: 250 V
  • Interrupting Rating: 200 kAIC at 250 Vac, 10 kAIC at 125 Vac
  • Terminal Style: Ferrule end x ferrule end
  • Pin Plating: Silver-plated
  • Indication: Non-indicating
  • Grade: Standard

Typical Applications

  • Inductive Load Circuit Protection
  • Electronic Circuit Protection
  • Motor and Transformer Circuit Fusing
  • Industrial and Commercial Equipment Protection
  • OEM and Replacement Fuse Applications

Why Bussmann?

Eaton Bussmann's FNA series combines dual-element, time-delay construction with a silver-plated pin contact and a 200 kAIC interrupting rating to deliver dependable circuit protection for inductive and electronic loads. Backed by Eaton Bussmann's engineering standards, the FNA series provides consistent, code-compliant performance for professional electrical and OEM applications across its full 1A-25A rating range.

Manufacturer Resources

Product Specs

Fuse Indicator:
Non-indicating
Product Material:
Silver-plated pin
Number Of Elements:
Dual
Packaging Type:
Standard
Department:
Electrical
Product Type:
Fuse
Series:
FNA
Voltage Rating:
250V
Amperage Rating:
1A - 25A
Configuration:
Dual-Element
Product Finish:
Silver-Plated
Grade:
Standard
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann FNA-10 – Frequently Asked Questions

1) What amp ratings does the Bussmann FNA fuse come in?
The FNA series is offered in 1A, 2A, 3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A, 12A, 15A, 20A, 25A and 30A. Part numbers follow the amp rating directly, so a 15 amp fuse is FNA-15 and a 30 amp is FNA-30. Pick the rating to match the circuit load you are protecting, not the wire alone.
2) Will a Bussmann FNA fuse hold up to motor inrush without nuisance blowing?
That is exactly what it is built for. FNA is a dual-element, time-delay fuse, so it rides through temporary inrush and motor-starting current on inductive loads while still clearing a sustained overload or short. A fast-acting fuse in the same holder would open on the starting surge.
3) What voltage circuit can I use the FNA fuse on?
It carries a 250 V rating, which covers 120 V and 240 V control, lighting and motor circuits. Interrupting rating is 200 kAIC at 250 Vac and 10 kAIC at 125 Vac, so on a 250 V system it will clear very high available fault current. Do not apply it above 250 V.
4) Does the FNA fuse fit a standard fuse block or clip holder?
Yes. The FNA uses ferrule end x ferrule end terminals, so it drops into clip-style fuse blocks and holders made for ferrule fuses, not blade or bolt-down bases. The pin is silver-plated for a low-resistance contact in the clips.
5) Can I tell by looking whether an FNA fuse has blown?
No. The FNA is non-indicating, so there is no pop-up pin or window to show an opened element. You will need to pull it and check continuity with a meter, or use an indicating-type fuse if visual status matters on that panel.
6) What is the difference between the Bussmann FNA and a standard fast-acting glass fuse?
Two things. The FNA is dual-element with a built-in time delay, so it tolerates start-up surge that would open a fast-acting fuse of the same amp rating. It also carries a 200 kAIC interrupting rating at 250 Vac, far above typical glass-tube fuses. Use fast-acting where you are protecting sensitive electronics with no inrush; use the FNA on motors, transformers and other inductive loads.
7) Is the FNA a suitable replacement fuse for OEM equipment already using this series?
Yes, when the existing fuse is an FNA of the same amp rating. The series is a Standard grade Eaton Bussmann fuse in the usual ferrule configuration, and the part number carries the amp rating, so an FNA-5 replaces an FNA-5 one for one. Match the amp rating on the blown fuse or on the equipment nameplate rather than sizing up.
8) Can I use the Bussmann FNA on an electronic or control circuit as well as a motor circuit?
Yes. Typical uses run from inductive load and motor or transformer circuits through to electronic circuit protection and general industrial and commercial equipment. The low ratings, 1A through about 5A, are where most control and electronics work lands.
How fast can I get the Bussmann FNA-10 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 FNA-10 come with a warranty?
Absolutely. The Bussmann FNA-10 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 FNA-10?
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
Why buy the Bussmann FNA-10 from ZenSupply?
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