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FNA-4 Cartridge fuse rated 4A at 250VAC with slow blow response time. Features alarm indicating capability and requires a holder for mounting.
Mfr Part #:

FNA-4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Cartridge fuse rated 4A at 250VAC with slow blow response time. Features alarm indicating capability and requires a holder for mounting.
✓ Total Stock: 50 pcs
$ Price Range: $101.12

FNA-4 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
50 pcs
On Request
50 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FNA-4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Features
Fuse Type
Industrial Grade
Mounting Type
Response Time
Tape & Reel
Voltage Rating
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FNA-4 Description

Short technical summary and product information.

The FNA-4 is a 4A, 250VAC cartridge fuse from Eaton Bussmann. It features a slow blow (time-delay) characteristic, making it suitable for applications with inrush currents such as motors and transformers. The fuse is alarm indicating, providing visual or mechanical indication when the fuse has blown. It comes in a cylindrical 5AG package measuring 10x38.1mm and requires a holder for mounting. The breaking capacity is 200A at rated voltage. The fuse is approved by CE, CSA, and UL. Typical applications include electrical and industrial equipment where overcurrent protection with indication is needed.

FNA-4 Quick Information

Product Type: Electrical Specialty Fuse
Canonical Name: FNA-4 Cartridge Fuse, 4A, 250VAC, Slow Blow, Indicating
Subcategory: Alarm Indicating Fuse

FNA-4 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FNA-4 Estimated Pricing

Qty Low High
10+ $101.12 $101.12

Estimated market price range - modelled values for guidance only, not live distributor offers.

FNA-4 Features

  • Rated for 4A at 250VAC operation.
  • Slow blow response for inrush currents.
  • Alarm indicating blown fuse detection.
  • Cylindrical 5AG package requires holder.
  • Approved by CE, CSA, and UL.

FNA-4 Applications

  • Suitable for electrical and industrial equipment.
  • Used in circuits with high inrush currents.
  • Ideal for alarm and indication systems.
  • Protects power supplies and motor circuits.

FNA-4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the FNA-4 fuse?

4 A.

What is the voltage rating of the FNA-4 fuse?

250 VAC.

What is the breaking capacity of the FNA-4 fuse?

200 A at 250 VAC.

What is the response time of the FNA-4 fuse?

Slow blow (time-delay).

What is the package type of the FNA-4 fuse?

Cylindrical, alarm indicating, 5AG, 10x38.1mm.

Which approval agencies certify the FNA-4 fuse?

CE, CSA, and UL.

Does the FNA-4 fuse have an alarm indication feature?

Yes, it is an indicating fuse.

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