KLM-1/2 Equivalent & Substitute Parts

Part Overview

The KLM-1/2 is a 500mA fast-blow fuse cartridge rated for 600 VAC and 600 VDC operation, manufactured by Eaton - Bussmann Electrical Division. This component is designed for use in electrical and industrial applications requiring a cartridge fuse that operates in a dedicated holder. The part maintains Active product status with 724 units currently in stock. 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 considerations necessitate alternative sourcing.

Substiute Parts

KLM-1/2

Eaton - Bussmann Electrical DivisionIn Stock: 750KLM-1/2 Datasheet

Current PartRFQ

KLKD.500T

Littelfuse Inc.In Stock: 861KLKD.500T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KLM-1/2 is determined by strict alignment of the following electrical and mechanical parameters:

• Current Rating: 500mA (exact match required)
• Voltage Rating - AC: 600 VAC (exact match required)
• Voltage Rating - DC: 600 VDC (exact match required)
• Response Time: Fast Blow (exact match required)
• Fuse Type: Cartridge (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Physical Dimensions: 0.406" Dia x 1.500" L (10.30mm x 38.10mm) (exact match required)
• Breaking Capacity: 100kA AC, 50kA DC (exact match required)
• Approval Certifications: CE, CSA, UL (all certifications must be present)

The KLKD.500T manufactured by Littelfuse Inc. meets all substitution criteria and is classified as an equivalent substitute part.

Parameter Comparison

Engineering Selection Recommendations

Both the KLM-1/2 and KLKD.500T maintain Active product status and carry identical electrical ratings, breaking capacity, and approval certifications (CE, CSA, UL). The KLKD.500T offers ROHS3 compliance, which exceeds the RoHS Compliant status of the KLM-1/2, providing enhanced environmental regulatory alignment. Physical dimensions are equivalent within manufacturing tolerance (10.30mm vs. 10.31mm diameter). Selection between these parts should be based on availability, packaging preference (Bulk vs. Box), and supply chain requirements, as both parts satisfy the electrical and mechanical requirements for direct substitution in 600 VAC/VDC, 500mA fast-blow cartridge fuse applications.

Frequently Asked Questions (FAQ)

Q: Can the KLKD.500T replace the KLM-1/2 in existing installations?

A: Yes. The KLKD.500T meets all electrical specifications (500mA, 600 VAC/VDC, fast-blow response), mechanical dimensions (0.406" Dia x 1.500" L), breaking capacity (100kA AC, 50kA DC), and approval certifications (CE, CSA, UL) required for direct substitution in applications designed for the KLM-1/2.

Q: Are there dimensional compatibility concerns between these parts?

A: No. Both parts conform to the 5AG cartridge fuse standard with dimensions of 0.406" Dia x 1.500" L (10.30mm x 38.10mm and 10.31mm x 38.10mm respectively). The 0.01mm diameter variance is within standard manufacturing tolerance and does not affect holder compatibility.

Q: What is the difference in RoHS compliance between these parts?

A: The KLM-1/2 is RoHS Compliant, while the KLKD.500T is ROHS3 Compliant. ROHS3 represents an updated compliance standard with more stringent restrictions on hazardous substances. Both parts meet environmental regulatory requirements; ROHS3 compliance provides enhanced environmental certification.

Q: Do both parts carry the same approval certifications?

A: Yes. Both the KLM-1/2 and KLKD.500T carry CE, CSA, and UL approvals, ensuring compliance with international electrical safety standards.

Q: What packaging options are available?

A: The KLM-1/2 is supplied in Bulk packaging, while the KLKD.500T is supplied in Box packaging. Selection depends on inventory management and procurement requirements.