KLU-2000 Equivalent & Substitute Parts

Part Overview

The KLU-2000 is a 2kA 600 VAC cylindrical cartridge fuse with bolt mount configuration, manufactured by Eaton - Bussmann Electrical Division under the Limitron™ KLU series. This component is classified as a slow-blow fuse with a breaking capacity of 200kA at rated voltage and is designed for electrical and industrial applications. The part maintains Active product status with full compliance certifications (CE, CSA, UL) and RoHS compliance. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification, enabling direct replacement in applications where component availability or supply chain requirements necessitate alternative sourcing.

Substiute Parts

KLU-2000

Eaton - Bussmann Electrical DivisionIn Stock: 805KLU-2000 Datasheet

Current PartRFQ

KLLU2000X

Littelfuse Inc.In Stock: 943KLLU2000X Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KLU-2000 is determined by strict alignment of the following parameters:

• Current Rating: 2kA (exact match required)
• Voltage Rating - AC: 600 VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Class: L (exact match required)
• Mounting Type: Bolt Mount (exact match required)
• Package / Case: Cylindrical, Blade Terminal (Bolt) (exact match required)
• Size / Dimension: 4.600" Dia x 3.750" L ±0.002" tolerance (mechanical compatibility required)
• Approval Agency: CE, CSA, UL (all certifications required)
• RoHS Compliance: Required

The KLLU2000X from Littelfuse Inc. meets all substitution criteria with identical electrical ratings, mechanical configuration, and regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the KLU-2000 and KLLU2000X maintain Active product status with identical regulatory certifications (CE, CSA, UL) and equivalent RoHS compliance levels. The KLLU2000X provides extended DC voltage capability (300 VDC) not specified in the KLU-2000 datasheet, which does not restrict its use in AC-only applications. Mechanical dimensions are within standard manufacturing tolerances. Selection between these parts should be based on supply chain availability, lead time requirements, and packaging format preference (Bulk vs. Box).

Frequently Asked Questions (FAQ)

Q: Can KLLU2000X be used as a direct replacement for KLU-2000?

A: Yes. The KLLU2000X meets all electrical and mechanical specifications required for direct substitution in 600 VAC, 2kA applications. Both parts are Class L cartridge fuses with identical current ratings, voltage ratings, response characteristics, and approval certifications.

Q: What is the significance of the DC voltage rating on the KLLU2000X?

A: The KLLU2000X is rated for 300 VDC in addition to 600 VAC. This extended rating does not affect AC-only applications and provides additional flexibility if the component is used in mixed AC/DC systems. The KLU-2000 specification does not include a DC rating.

Q: Are the physical dimensions identical?

A: Dimensions are mechanically compatible. The KLU-2000 is specified as 4.600" Dia x 3.750" L, while the KLLU2000X is 4.600" Dia x 3.752" L. The 0.002" difference in length is within standard manufacturing tolerances for cylindrical cartridge fuses and does not affect bolt mount installation.

Q: Do both parts carry the same regulatory approvals?

A: Yes. Both the KLU-2000 and KLLU2000X carry CE, CSA, and UL certifications and meet RoHS compliance requirements, ensuring equivalent regulatory acceptance in electrical and industrial applications.

Q: What is the difference between Bulk and Box packaging?

A: The KLU-2000 is supplied in Bulk packaging, while the KLLU2000X is supplied in Box packaging. This is a logistics consideration only and does not affect electrical or mechanical performance. Selection depends on inventory management and procurement requirements.