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FNQ-4 Cartridge fuse rated 4A at 500VAC with slow-blow response. 10kA interrupting capacity. 5AG (10mm x 38mm) package requiring a holder.
Mfr Part #:

FNQ-4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Cartridge fuse rated 4A at 500VAC with slow-blow response. 10kA interrupting capacity. 5AG (10mm x 38mm) package requiring a holder.
✓ Total Stock: 6 pcs
$ Price Range: $59.66 - $110.65

FNQ-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
6 pcs
On Request
6 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.

FNQ-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)
Fuse Type
Industrial Grade
Mounting Type
Response Time
Tape & Reel
Voltage Rating
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FNQ-4 Description

Short technical summary and product information.

The Eaton - Bussmann Electrical Division FNQ-4 is a 4 amp cartridge fuse designed for overcurrent protection in electrical and industrial applications. It features a slow-blow (time-delay) response, accommodating inrush currents that occur during equipment startup.

 

Rated for 500VAC with a breaking capacity of 10kA, this fuse provides reliable fault interruption. The 5AG (10mm x 38mm) package (0.406" diameter x 1.500" length) is a standard midget size used in holders. Approvals include CE, CSA, and UL, indicating compliance with major international safety standards.

FNQ-4 Quick Information

Product Type: Cartridge Fuse
Series: FNQ
Canonical Name: Cartridge Fuse, 4A, 500VAC, Slow Blow, 5AG (10x38mm)
Subcategory: Electrical, Specialty Fuses

FNQ-4 Compliance

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

FNQ-4 Estimated Pricing

Qty Low High
1+ $110.65 $110.65
5+ $84.00 $84.00
10+ $72.13 $72.13
50+ $59.67 $59.67
100+ $59.66 $59.66

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

FNQ-4 Features

  • 4A current rating with slow-blow response.
  • Rated for 500VAC operation.
  • 10kA breaking capacity at rated voltage.
  • 5AG (10x38mm) cartridge package.
  • Approved by CE, CSA, and UL.

FNQ-4 Applications

  • Overcurrent protection in industrial control panels.
  • Motor branch circuit protection with inrush tolerance.
  • General electrical distribution equipment.
  • Power supply input protection requiring time-delay.

FNQ-4 FAQs

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

The FNQ-4 is rated for 4 amps continuous current.

What voltage is the FNQ-4 rated for?

The FNQ-4 is rated for 500VAC.

What is the breaking capacity of the FNQ-4?

The FNQ-4 has a breaking capacity of 10kA at its rated voltage.

Is the FNQ-4 a fast-acting or slow-blow fuse?

The FNQ-4 has a slow-blow (time-delay) response.

What is the package or case size of the FNQ-4?

The FNQ-4 comes in a 5AG, 10mm x 38mm (midget) cartridge package. Dimensions: 0.406" diameter x 1.500" length.

Does the FNQ-4 require a holder for mounting?

Yes, the FNQ-4 requires a holder for mounting.

What safety approvals does the FNQ-4 have?

The FNQ-4 is approved by CE, CSA, and UL.

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