DCM-2 Equivalent & Substitute Parts Reference

Part Overview

The DCM-2 is a 2A 600VAC/VDC fast-blow cartridge fuse manufactured by Eaton - Bussmann Electrical Division. This component is classified as obsolete, requiring identification of active equivalent alternatives for ongoing system maintenance and new designs. The DCM-2 operates in the 5AG (10mm x 38mm midget) form factor and is approved by CSA and UL standards. Locating suitable substitutes is essential for applications where original inventory is depleted or long-term component availability cannot be assured.

Substiute Parts

DCM-2

Eaton - Bussmann Electrical DivisionIn Stock: 727DCM-2 Datasheet

Current PartRFQ

KTK-2

Eaton - Bussmann Electrical DivisionIn Stock: 708KTK-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DCM-2 is determined by strict equivalence across the following critical parameters:

• Current Rating: 2A (exact match required)
• Voltage Rating - AC: 600 VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Package / Case: 5AG, 10mm x 38mm (exact match required)
• Response Time: Fast Blow (exact match required)
• Approval Agency: CSA, UL certification (required for regulatory compliance)

The KTK-2 meets all substitution criteria. While the KTK-2 does not specify a DC voltage rating in the provided data, it maintains identical AC voltage, current, response time, package form factor, and approval certifications as the DCM-2. The KTK-2 is classified as active product status, ensuring continued availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

The KTK-2 is the direct equivalent substitute for the DCM-2. Both components are manufactured by Eaton - Bussmann Electrical Division and share identical electrical and mechanical specifications across all critical parameters: 2A current rating, 600 VAC voltage rating, fast-blow response time, 5AG cartridge form factor, and CSA/UL approval certifications.

The primary advantage of selecting the KTK-2 is product status. The DCM-2 is obsolete, while the KTK-2 is active, ensuring long-term availability and supply chain continuity. Both components are approved by the same regulatory agencies (CSA, UL), maintaining compliance requirements for electrical and industrial applications.

For applications requiring DC voltage operation, the DCM-2 specification explicitly includes 600 VDC rating. The KTK-2 datasheet does not specify DC voltage capability in the provided parameters. Component selection should account for this specification gap if DC operation is a system requirement.

Frequently Asked Questions (FAQ)

Q: Can the KTK-2 directly replace the DCM-2 in existing installations?

A: Yes. Both components are 2A, 600 VAC, fast-blow cartridge fuses in the 5AG (10mm x 38mm) form factor with identical physical dimensions and mounting requirements. Both are CSA and UL approved. Direct mechanical and electrical substitution is supported for AC applications.

Q: What is the primary reason to transition from DCM-2 to KTK-2?

A: The DCM-2 is classified as obsolete product status. The KTK-2 is active, providing assured long-term availability and supply chain reliability for ongoing maintenance and new designs.

Q: Are there any compatibility concerns with the 5AG cartridge form factor?

A: No. Both the DCM-2 and KTK-2 use the identical 5AG package specification (10mm x 38mm midget cartridge). Physical dimensions are 0.406" diameter by 1.500" length. Both require a compatible fuse holder for installation.

Q: What is the breaking capacity difference between these components?

A: The DCM-2 specifies 100kA AC and 50kA DC breaking capacity. The KTK-2 specifies 100kA breaking capacity. For AC applications, breaking capacity is equivalent. For DC applications, the DCM-2 provides higher breaking capacity (50kA vs. unspecified for KTK-2).

Q: Do both components require the same holder type?

A: Yes. Both the DCM-2 and KTK-2 are cartridge fuses that require a compatible fuse holder for installation. They share identical physical dimensions and mounting specifications.

Q: What certifications apply to both components?

A: Both the DCM-2 and KTK-2 carry CSA and UL approval certifications, meeting regulatory requirements for electrical and industrial applications.