FNM-1/4 The FNM-1/4 is a 250mA, 250VAC slow blow cartridge fuse in a 5AG (10x38mm) package. It is designed for motor and transformer protection, featuring a 35A breaking capacity at rated voltage.
Mfr Part #:

FNM-1/4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
The FNM-1/4 is a 250mA, 250VAC slow blow cartridge fuse in a 5AG (10x38mm) package. It is designed for motor and transformer protection, featuring a 35A breaking capacity at rated voltage.
Total Stock: 30 pcs
$ Price Range: $44.29

FNM-1/4 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
30 pcs
30 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

FNM-1/4 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

FNM-1/4 Description

Short technical summary and product information.

The FNM-1/4 from Eaton - Bussmann Electrical Division is a 250mA, 250VAC slow blow cartridge fuse designed for overcurrent protection in motor and transformer circuits. Its slow blow characteristic allows it to withstand inrush currents without nuisance tripping, making it suitable for inductive loads.

 

Rated at 250mA and 250VAC, this fuse offers a breaking capacity of 35A at rated voltage. It is housed in a standard 5AG (10mm x 38mm) cartridge package and requires a compatible fuse holder for installation. The fuse is approved by CE, CSA, and UL, ensuring compliance with international safety standards.

 

Typical applications include motor protection, transformer protection, and other industrial equipment where inrush currents are present. The 5AG form factor is widely used in panel-mounted fuse holders and disconnects.

FNM-1/4 Quick Information

Product Type: Cartridge Fuse
Series: FNM
Canonical Name: FNM-1/4 Cartridge Fuse, 250mA, 250VAC, Slow Blow, 5AG (10x38mm)
Subcategory: Cartridge Fuse

FNM-1/4 Compliance

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

FNM-1/4 Estimated Pricing

Qty Low High
1+ $44.29 $44.29

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

FNM-1/4 Features

  • Rated for 250mA at 250VAC operation.
  • Slow blow response for inrush current handling.
  • 35A breaking capacity at rated voltage.
  • 5AG cartridge package (10x38mm) for panel mounting.
  • UL, CSA, and CE safety approved.

FNM-1/4 Applications

  • Protects motors from overcurrent faults.
  • Suitable for transformer primary protection.
  • Used in industrial control panels.
  • Ideal for circuits with high inrush currents.

FNM-1/4 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the FNM-1/4 fuse?

The FNM-1/4 is rated for 250mA (0.25A).

What voltage rating does the FNM-1/4 have?

It is rated for 250VAC.

What is the breaking capacity of the FNM-1/4?

The breaking capacity is 35A at rated voltage.

Is the FNM-1/4 a fast-acting or slow-blow fuse?

It is a slow blow (time-delay) fuse.

What is the package size of the FNM-1/4 fuse?

The fuse is in a 5AG (10mm x 38mm) cartridge package, also known as Midget size.

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