KLM-20 Equivalent & Substitute Parts

Part Overview

The KLM-20 is a 20A cartridge fuse rated for 600 VAC/VDC operation, manufactured by Eaton - Bussmann Electrical Division. This fast-blow fuse cartridge requires a compatible holder for installation and is designed for electrical and industrial applications. The part maintains active product status with 753 units in current inventory. Substitute parts are identified when electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in existing installations.

Substiute Parts

KLM-20

Eaton - Bussmann Electrical DivisionIn Stock: 798KLM-20 Datasheet

Current PartRFQ

KLKD020.T

Littelfuse Inc.In Stock: 1542KLKD020.T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KLM-20 are qualified based on the following critical parameters:

• Current Rating: 20A (exact match required)
• Voltage Rating: 600 VAC and 600 VDC (both must be met)
• Fuse Type: Cartridge configuration
• Response Time: Fast Blow characteristic
• Breaking Capacity: 100kA AC and 50kA DC minimum
• Physical Dimensions: 0.406" Dia x 1.500" L (10.30mm x 38.10mm) for holder compatibility
• Mounting: Requires Holder configuration
• Regulatory Compliance: CE, CSA, UL certifications

The KLKD020.T from Littelfuse Inc. meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the KLM-20 and KLKD020.T maintain active product status and carry equivalent regulatory certifications (CE, CSA, UL). The KLKD020.T includes additional VDE certification. Electrical parameters are identical across current rating, voltage ratings, breaking capacity, and response characteristics. Physical dimensions are equivalent within manufacturing tolerance. Both parts are ROHS3 compliant and REACH unaffected. Selection between these parts may be based on availability, packaging preference (Bulk vs. Box), or supply chain requirements, as functional and electrical equivalence is established.

Frequently Asked Questions (FAQ)

Q: Can KLKD020.T replace KLM-20 in existing installations?

A: Yes. The KLKD020.T meets all electrical and mechanical substitution criteria: identical 20A current rating, 600 VAC/VDC voltage ratings, fast-blow response, 100kA AC / 50kA DC breaking capacity, and equivalent physical dimensions (0.406" Dia x 1.500" L). Both require the same holder configuration.

Q: Are there dimensional differences between these parts?

A: Dimensions are equivalent. KLM-20 is specified as 10.30mm diameter, while KLKD020.T is 10.31mm diameter. Both are 38.10mm length. These differences fall within standard manufacturing tolerance for cartridge fuse holders.

Q: What certifications apply to both parts?

A: Both parts carry CE, CSA, and UL certifications. KLKD020.T additionally includes VDE certification. All certifications meet industrial and electrical application requirements.

Q: Does packaging type affect electrical performance?

A: No. KLM-20 is supplied in Bulk packaging while KLKD020.T is supplied in Box packaging. Packaging type does not affect electrical characteristics, performance, or compatibility with fuse holders.

Q: Are both parts RoHS compliant?

A: Yes. Both KLM-20 and KLKD020.T are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.