DCM-1/4 Equivalent & Substitute Parts

Part Overview

The DCM-1/4 is a 250mA fuse cartridge rated for 600 VAC/VDC operation, manufactured by Eaton - Bussmann Electrical Division. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component procurement. The DCM-1/4 requires a compatible holder for installation and is designed for fast-blow response in electrical and industrial applications.

Substiute Parts

DCM-1/4

Eaton - Bussmann Electrical DivisionIn Stock: 898DCM-1/4 Datasheet

Current PartRFQ

KTK-1/4

Eaton - Bussmann Electrical DivisionIn Stock: 1054KTK-1/4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DCM-1/4 is determined by the following critical parameters:

• Current Rating: 250mA (exact match required)
• Voltage Rating: 600 VAC minimum (DC rating is secondary consideration)
• Fuse Type: Cartridge configuration
• Response Time: Fast Blow
• Package / Case: 5AG, 10mm x 38mm (Midget) form factor
• Approval Agency: CSA and UL certification

The KTK-1/4 meets all primary substitution criteria. It shares identical current rating, AC voltage rating, fuse type, response time, physical dimensions, and package classification. The KTK-1/4 is manufactured by the same supplier and carries equivalent regulatory approvals.

Parameter Comparison

Engineering Selection Recommendations

The KTK-1/4 is the direct substitute for the DCM-1/4. Both components share identical electrical ratings for AC operation, fuse type, response characteristics, and physical form factor. The KTK-1/4 carries active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain CSA and UL certifications, satisfying regulatory compliance requirements.

The KTK-1/4 demonstrates improved environmental compliance through RoHS certification, whereas the DCM-1/4 is classified as REACH Unaffected. For applications requiring DC voltage operation, the DCM-1/4 specification of 600 VDC should be cross-referenced with system requirements, as the KTK-1/4 does not explicitly specify DC rating.

Frequently Asked Questions (FAQ)

Q: Can the KTK-1/4 directly replace the DCM-1/4 in existing installations?

A: Yes. Both components are 250mA, 600 VAC cartridge fuses with identical 5AG package dimensions (10mm x 38mm), fast-blow response, and CSA/UL approvals. Physical and electrical compatibility is confirmed.

Q: What is the significance of the DCM-1/4 being obsolete?

A: Obsolete status indicates the DCM-1/4 is no longer manufactured. The KTK-1/4 is an active product from the same manufacturer, providing a supported alternative for new procurement and system maintenance.

Q: Does the KTK-1/4 support DC voltage operation?

A: The KTK-1/4 specification does not explicitly state a DC voltage rating. The DCM-1/4 is rated for 600 VDC. For applications requiring confirmed DC operation, system voltage requirements should be evaluated against available component specifications.

Q: Are there physical installation differences between these components?

A: No. Both components are 0.406" diameter by 1.500" length cartridges requiring a compatible holder. They are mechanically interchangeable within the same holder assembly.

Q: What certifications apply to both components?

A: Both the DCM-1/4 and KTK-1/4 carry CSA and UL approvals, meeting North American regulatory standards for electrical safety.