FNM-1-1/4 Eaton Bussmann FNM-1-1/4 is a 1.25A, 250VAC slow blow cartridge fuse in a 5AG (10x38mm) package. Designed for motor and transformer protection.
Mfr Part #:

FNM-1-1/4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton Bussmann FNM-1-1/4 is a 1.25A, 250VAC slow blow cartridge fuse in a 5AG (10x38mm) package. Designed for motor and transformer protection.
Total Stock: 14 pcs
$ Price Range: $39.59 - $40.71

FNM-1-1/4 Available from 1 distributor

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

FNM-1-1/4 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
Mounting Type
Response Time
Tape & Reel
Voltage Rating

FNM-1-1/4 Description

Short technical summary and product information.

The Eaton Bussmann FNM-1-1/4 is a 1.25 amp, 250 volt AC slow blow cartridge fuse. It is housed in a standard 5AG package measuring 10.30mm in diameter by 38.10mm in length (0.406" x 1.500"). This fuse requires a holder for mounting and is intended for overcurrent protection in circuits with inductive loads.

 

With a breaking capacity of 100 amperes at rated voltage, the FNM-1-1/4 is suitable for branch circuit protection in motor and transformer applications. The slow blow (time-delay) characteristic allows it to withstand temporary inrush currents without nuisance opening, making it ideal for equipment with high starting currents.

 

The fuse carries approvals from CE, CSA, and UL, indicating compliance with international safety standards. It is listed as RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified. The part is cross-referenced as DigiKey part number FNM-1-1/4-ND.

FNM-1-1/4 Quick Information

Product Type: Cartridge Fuse
Series: FNM
Canonical Name: Eaton Bussmann FNM-1-1/4 1.25A 250VAC Slow Blow Cartridge Fuse
Subcategory: Electrical, Specialty Fuses

FNM-1-1/4 Compliance

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

FNM-1-1/4 Estimated Pricing

Qty Low High
1+ $40.71 $40.71
5+ $39.59 $39.59

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

FNM-1-1/4 Features

  • 1.25A current rating for overcurrent protection.
  • 250VAC voltage rating for AC circuits.
  • Slow blow response for inductive loads.
  • 100A breaking capacity at rated voltage.
  • 5AG cartridge package requires holder.

FNM-1-1/4 Applications

  • Protects motors from overcurrent conditions.
  • Safeguards transformers against faults.
  • Used in branch circuit protection applications.

FNM-1-1/4 FAQs

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

The FNM-1-1/4 has a current rating of 1.25 A.

What is the voltage rating of this fuse?

The voltage rating is 250 V AC.

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

The breaking capacity is 100 A at rated voltage.

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

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

What is the package size of this fuse?

The package is 5AG, 10mm x 38mm (Midget), with dimensions 0.406" Dia x 1.500" L (10.30mm x 38.10mm).

Home
Account

Categories