KTK-30 Equivalent & Substitute Parts

Part Overview

The KTK-30 is a 30A 600VAC fast-blow fuse cartridge manufactured by Eaton - Bussmann Electrical Division. This component is designed for electrical and industrial applications requiring overcurrent protection in AC circuits. The part is currently active in production with 873 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent functionality.

Substiute Parts

KTK-30

Eaton - Bussmann Electrical DivisionIn Stock: 941KTK-30 Datasheet

Current PartRFQ

KLKR030.T

Littelfuse Inc.In Stock: 1766KLKR030.T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KTK-30 is determined by the following critical parameters:

• Current Rating: Must be 30A
• Voltage Rating - AC: Must be 600 VAC minimum
• Fuse Type: Must be Cartridge
• Response Time: Must be Fast Blow
• Package / Case: Must be 5AG, 10mm x 38mm (Midget)
• Physical Dimensions: Must be 0.406" Dia x 1.500" L (10.30mm x 38.10mm)
• Approval Certifications: Must include CSA and UL

The KLKR030.T from Littelfuse Inc. meets all these criteria and is classified as a direct substitute. This part maintains identical current rating, AC voltage rating, fuse type, response time, and physical dimensions. The substitute also maintains required regulatory approvals and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The KLKR030.T is a direct substitute for the KTK-30 based on matching electrical and mechanical specifications. Both parts are active products with current manufacturing status and maintain ROHS3 compliance. The substitute part carries additional certifications (CE) and provides higher breaking capacity ratings, which do not compromise compatibility in applications designed for the KTK-30. Both parts are approved by CSA and UL, meeting the regulatory requirements of the original specification.

Frequently Asked Questions (FAQ)

Q: Can KLKR030.T be used as a direct replacement for KTK-30?

A: Yes. Both parts share identical current rating (30A), AC voltage rating (600 VAC), fuse type (Cartridge), response time (Fast Blow), and physical dimensions (0.406" Dia x 1.500" L). Both are approved by CSA and UL and are ROHS3 compliant.

Q: What is the difference in breaking capacity between these parts?

A: The KTK-30 has a breaking capacity of 100kA at rated voltage. The KLKR030.T has a breaking capacity of 200kA AC and 20kA DC. Higher breaking capacity does not affect compatibility in circuits designed for the original part.

Q: Does the KLKR030.T offer DC voltage protection?

A: The KLKR030.T is rated for 300 VDC, whereas the KTK-30 does not specify a DC voltage rating. This additional capability does not affect AC circuit applications.

Q: Are both parts available in the same package format?

A: Yes. Both parts use the 5AG, 10mm x 38mm (Midget) package format and have identical physical dimensions, ensuring mechanical compatibility with existing holders and mounting configurations.

Q: What certifications apply to both parts?

A: Both the KTK-30 and KLKR030.T carry CSA and UL approvals. The KLKR030.T additionally carries CE certification.