KTU-6000 Equivalent & Substitute Parts Reference

Part Overview

The KTU-6000 is a 6kA 600 VAC cylindrical cartridge fuse manufactured by Eaton - Bussmann Electrical Division, part of the Limitron™ KTU series. This fast-blow fuse cartridge is designed for bolt mount applications in electrical and industrial systems. The part is currently active in production with 925 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, application-specific certifications, or packaging preferences.

Substiute Parts

KTU-6000

Eaton - Bussmann Electrical DivisionIn Stock: 939KTU-6000 Datasheet

Current PartRFQ

KLPC6000X

Littelfuse Inc.In Stock: 818KLPC6000X Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KTU-6000 is determined by the following critical parameters:

• Current Rating: Must be 6kA
• Voltage Rating - AC: Must be 600 VAC minimum
• Fuse Type: Must be Cartridge
• Mounting Type: Must be Bolt Mount
• Package / Case: Must be Cylindrical with Blade Terminal (Bolt)
• Class: Must be Class L
• Approval Agencies: Must include CE, CSA, and UL certifications

The KLPC6000X from Littelfuse Inc. meets all mandatory electrical and mechanical parameters for substitution. While the KLPC6000X offers additional DC voltage capability (480 VDC) and slower response time (Slow Blow), these represent extended functionality rather than deviations from the core AC specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the KTU-6000 and KLPC6000X are active products with full CE, CSA, and UL certifications. Selection between these parts should be based on the following factors:

KTU-6000 (Eaton - Bussmann): Select when fast-blow response time is required for the application and AC-only operation is specified. This part maintains the original design intent with 925 units currently in stock.

KLPC6000X (Littelfuse): Select when dual AC/DC voltage capability is beneficial to the system design, or when slow-blow response time is required. This part offers extended breaking capacity on DC circuits (300kA DC) and is available with 749 units in stock. Physical dimensions differ slightly in length (4.000" vs. 3.750"), which must be verified against mounting space constraints.

Both parts carry equivalent regulatory compliance and RoHS status, ensuring interchangeability from a standards perspective.

Frequently Asked Questions (FAQ)

Q: Can KLPC6000X replace KTU-6000 in an existing installation?

A: Electrical substitution is valid based on matching current rating (6kA), AC voltage rating (600 VAC), fuse class (L), and mounting type (bolt mount). However, the difference in response time (slow blow vs. fast blow) and physical length (4.000" vs. 3.750") must be evaluated against circuit protection requirements and physical mounting space.

Q: What is the significance of the Class L rating?

A: Class L fuses are cylindrical cartridge fuses rated for 600 VAC AC and designed for industrial power distribution applications. Both parts meet this classification standard.

Q: Does the KLPC6000X DC voltage rating affect AC-only applications?

A: No. The 480 VDC rating on the KLPC6000X is an additional capability that does not impact AC circuit performance. The 600 VAC rating remains the controlling specification for AC applications.

Q: Are there physical mounting differences between these parts?

A: Both parts use identical bolt mount terminals and cylindrical blade terminal design. The diameter is equivalent (7.130" vs. 7.126"). The length differs by 0.250" (3.750" vs. 4.000"), which must be verified against available mounting space in the equipment.

Q: What certifications apply to both parts?

A: Both KTU-6000 and KLPC6000X carry CE, CSA, and UL approvals, ensuring compliance with North American and European electrical standards.