BK/AGX-4 Eaton BK/AGX-4 is a 4A, 250VAC fast blow glass cartridge fuse in an 8AG package. It requires a holder for mounting and is cULus approved.
Mfr Part #:

BK/AGX-4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK/AGX-4 is a 4A, 250VAC fast blow glass cartridge fuse in an 8AG package. It requires a holder for mounting and is cULus approved.
Total Stock: 1,125 pcs
$ Price Range: $0.47 - $1.78

BK/AGX-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
1,125 pcs
1125 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BK/AGX-4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Mounting Type
Response Time
Voltage Rating

BK/AGX-4 Description

Short technical summary and product information.

The Eaton BK/AGX-4 is a 4 amp, 250 volt AC fast blow glass cartridge fuse designed for overcurrent protection in a variety of electronic circuits. This fuse features a fast-acting response time, making it suitable for protecting sensitive components that cannot tolerate even brief overcurrent surges.

 

Rated at 4A and 250VAC, the BK/AGX-4 offers a minimum breaking capacity of 200A at its rated voltage. It is housed in a standard 8AG package with dimensions of 0.250 inches in diameter and 1.042 inches in length (6.35mm x 26.47mm). The glass construction allows for visual inspection of the fuse element.

 

This component requires a separate fuse holder for installation and is not designed for direct board mounting. It carries cULus approval, indicating it has been tested and certified for safety by Underwriters Laboratories and the Canadian Standards Association.

BK/AGX-4 Quick Information

Product Type: Cartridge Fuse
Series: AGX
Canonical Name: Eaton BK/AGX-4 4A 250V Fast Blow Cartridge Fuse
Subcategory: Glass Tube Fuse

BK/AGX-4 Compliance

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

BK/AGX-4 Estimated Pricing

Qty Low High
1+ $1.27 $1.27
5+ $1.05 $1.05
10+ $0.97 $0.97
40+ $1.78 $1.78
50+ $0.81 $0.81
100+ $0.74 $0.74
300+ $0.66 $0.66
500+ $0.62 $0.62
1,000+ $0.57 $0.57
5,000+ $0.47 $0.47

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

BK/AGX-4 Features

  • Fast blow response for sensitive circuits.
  • Rated for 4A at 250VAC operation.
  • Minimum 200A breaking capacity at 250V.
  • cULus approved safety certification.
  • Glass cartridge construction in 8AG package.

BK/AGX-4 Applications

  • Overcurrent protection in power supplies.
  • Protection for lighting and ballast circuits.
  • General purpose electronic circuit protection.
  • Used in industrial control equipment.

BK/AGX-4 FAQs

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

The BK/AGX-4 has a current rating of 4 A.

What is the voltage rating of the BK/AGX-4 fuse?

The BK/AGX-4 is rated for 250 VAC.

What is the breaking capacity of the BK/AGX-4?

The BK/AGX-4 has a minimum breaking capacity of 200 A at its rated voltage of 250 VAC.

What is the response time of the BK/AGX-4 fuse?

The BK/AGX-4 is a fast blow fuse.

What package or case size is the BK/AGX-4?

The BK/AGX-4 comes in an 8AG package, with dimensions of 0.250" Dia x 1.042" L (6.35mm x 26.47mm).

How is the BK/AGX-4 fuse mounted?

The BK/AGX-4 requires a separate fuse holder for mounting.

What safety approvals does the BK/AGX-4 have?

The BK/AGX-4 is cULus approved.

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