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KTK-4 KTK-4 is a 4A, 600VAC fast-blow cartridge fuse from Eaton Bussmann. It offers a 100kA breaking capacity in a 5AG package.
Mfr Part #:

KTK-4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
KTK-4 is a 4A, 600VAC fast-blow cartridge fuse from Eaton Bussmann. It offers a 100kA breaking capacity in a 5AG package.
✓ Total Stock: 3 pcs

KTK-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
3 pcs
On Request
3 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.

KTK-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
Lead Style
Mounting Type
Response Time
Voltage Rating
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KTK-4 Description

Short technical summary and product information.

The Eaton Bussmann KTK-4 is a fast-blow cartridge fuse rated for 4 amperes at 600 volts AC. It features a high breaking capacity of 100kA, making it suitable for industrial and electrical applications where overcurrent protection is critical. The fuse is housed in a standard 5AG (10mm x 38mm) midget package and requires a compatible holder for installation. It is approved by CSA and UL, ensuring compliance with North American safety standards.

 

The fast-blow response time provides rapid protection against short circuits and overloads. This fuse is designed for use in branch circuits, motor control centers, and other power distribution equipment. Its compact size allows for installation in space-constrained panels.

KTK-4 Quick Information

Product Type: Cartridge Fuse
Series: KTK
Canonical Name: Eaton Bussmann KTK-4 Fast-Blow Cartridge Fuse, 4A, 600VAC, 100kA Breaking Capacity
Subcategory: Specialty Fuses

KTK-4 Compliance

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

KTK-4 Features

  • Fast-blow cartridge fuse rated at 4A.
  • 600VAC voltage rating with 100kA breaking capacity.
  • Standard 5AG (10mm x 38mm) midget package.
  • CSA and UL approved for safety.
  • Requires a compatible fuse holder.

KTK-4 Applications

  • Used in industrial electrical systems for overcurrent protection.
  • Suitable for motor control centers and branch circuits.
  • Ideal for power distribution equipment requiring fast-blow protection.

KTK-4 FAQs

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

The KTK-4 fuse is rated for 4 amperes.

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

The KTK-4 fuse is rated for 600 volts AC.

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

The KTK-4 fuse has a breaking capacity of 100kA at rated voltage.

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

The KTK-4 fuse is a fast-blow (fast-acting) fuse.

What is the package or case size of the KTK-4 fuse?

The KTK-4 fuse comes in a 5AG (10mm x 38mm) midget package.

What approvals does the KTK-4 fuse have?

The KTK-4 fuse is approved by CSA and UL.

How is the KTK-4 fuse mounted?

The KTK-4 fuse requires a holder for mounting; it is not a direct mount component.

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