DCM-15 Equivalent & Substitute Parts Reference

Part Overview

The DCM-15 is a 15A 600VAC/VDC fast-blow fuse cartridge manufactured by Eaton - Bussmann Electrical Division. This component is classified as obsolete, though 1051 pieces remain in stock. The DCM-15 requires a holder for installation and is designed for electrical and industrial applications. Due to its obsolete status, identifying equivalent and substitute parts is essential for ongoing system maintenance and new design implementations.

Substiute Parts

DCM-15

Eaton - Bussmann Electrical DivisionIn Stock: 1104DCM-15 Datasheet

Current PartRFQ

KTK-15

Eaton - Bussmann Electrical DivisionIn Stock: 1157KTK-15 Datasheet

SimilarRFQ

KLKD015.T

Littelfuse Inc.In Stock: 3738KLKD015.T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DCM-15 is determined by strict equivalence across the following critical parameters:

• Current Rating: 15A (exact match required)
• Voltage Rating: 600 VAC minimum; 600 VDC capability preferred for dual-voltage applications
• Response Time: Fast Blow (identical performance characteristic)
• Fuse Type: Cartridge (physical and functional form factor)
• Package / Case: 5AG, 10mm x 38mm (Midget) (mechanical compatibility with existing holders)
• Size / Dimension: 0.406" Dia x 1.500" L (physical fit requirement)
• Breaking Capacity: 100kA AC, 50kA DC (electrical safety specification)

Both identified substitutes meet all critical parameters. The KTK-15 is an active-status variant from the same manufacturer (Eaton - Bussmann). The KLKD015.T is an active-status alternative from Littelfuse Inc., offering expanded voltage capability documentation and additional certifications.

Parameter Comparison

Engineering Selection Recommendations

KTK-15 (Eaton - Bussmann): This substitute maintains manufacturer continuity and is classified as active status, ensuring ongoing availability. It meets all critical electrical parameters for AC applications at 600 VAC. The KTK-15 carries identical CSA and UL certifications as the DCM-15. Selection of this part is appropriate for applications where DC voltage capability is not required or where manufacturer standardization is a design priority.

KLKD015.T (Littelfuse Inc.): This substitute provides full electrical equivalence, including both 600 VAC and 600 VDC ratings, matching the DCM-15 specification exactly. The KLKD015.T is active status and carries expanded regulatory approvals (CE, CSA, UL, VDE), providing broader international compliance documentation. This part is suitable for applications requiring dual-voltage capability or where expanded certifications are mandated by system requirements.

Both substitutes are mechanically compatible with existing DCM-15 holders and maintain identical fast-blow response characteristics and breaking capacity specifications.

Frequently Asked Questions (FAQ)

Q: Can the KTK-15 be used in applications requiring 600 VDC operation?

A: The KTK-15 specification does not document 600 VDC capability. For applications requiring both 600 VAC and 600 VDC operation, the KLKD015.T is the appropriate selection.

Q: Are the physical dimensions of all three parts identical?

A: The DCM-15 and KTK-15 are specified at 0.406" Dia x 1.500" L (10.30mm x 38.10mm). The KLKD015.T is specified at 0.406" Dia x 1.500" L (10.31mm x 38.10mm). The 0.01mm difference in length is within standard manufacturing tolerance and does not affect holder compatibility.

Q: What is the difference between the 5AG package designation and the KLKD015.T "Non-Standard" package designation?

A: The 5AG designation is a standard fuse cartridge classification (10mm x 38mm Midget). The KLKD015.T uses the same physical dimensions but is classified as "Non-Standard" in its package field. Both are mechanically compatible with standard 5AG holders.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application requirements. For AC-only applications, either KTK-15 or KLKD015.T is acceptable. For applications requiring 600 VDC capability or expanded international certifications, the KLKD015.T is the specified choice.

Q: Are all three parts RoHS compliant?

A: The DCM-15 does not specify RoHS status. The KTK-15 is ROHS3 Compliant. The KLKD015.T is ROHS3 Compliant. For applications with RoHS compliance requirements, either active-status substitute is appropriate.