DCM-7 Equivalent & Substitute Parts Reference

Part Overview

The Eaton - Bussmann Electrical Division DCM-7 is a cartridge fuse rated at 7A with a voltage rating of 600 VAC/VDC. It features a 5AG (10mm x 38mm midget) package and requires a holder for mounting. The part is classified as obsolete. Identifying alternative or equivalent cartridge fuses is essential to ensure continued maintenance and assembly of electrical and industrial equipment originally designed for the DCM-7, as its status limits ongoing availability.

Substiute Parts

DCM-7

Eaton - Bussmann Electrical DivisionIn Stock: 1162DCM-7 Datasheet

Current PartRFQ

KTK-7

Eaton - Bussmann Electrical DivisionIn Stock: 844KTK-7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined solely by matching parameters in the cartridge fuse category: current rating, voltage rating, response time, physical size and package, mounting type, approval agency certifications, and breaking capacity. Substitute fuses must be from the same physical type to ensure mechanical and electrical compatibility in the existing holder and meet or exceed the necessary electrical protection requirements.

Key substitution parameters listed:

• Current Rating (Amps)
• Voltage Rating (AC and DC)
• Fuse Type
• Response Time
• Package / Case dimensions
• Mounting Type
• Approval Agency (CSA, UL)
• Breaking Capacity @ Rated Voltage

Parameter Comparison

Engineering Selection Recommendations

The Eaton - Bussmann Electrical Division DCM-7 is marked obsolete, which restricts future procurement for ongoing or new designs. The KTK-7 is an active part and provides electrical and dimensional compatibility based on the shared electrical parameters, approvals (CSA, UL), size, and package. For designs requiring a RoHS-compliant solution, only the KTK-7 explicitly provides the RoHS status in the parameters provided.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting DCM-7 fuse cartridges?
A1: Substitute fuses for the DCM-7 require matching current rating, voltage rating, response time, physical size (5AG, 10mm x 38mm midget), mounting type, approval agency certifications (CSA, UL), and breaking capacity.

Q2: Is the KTK-7 compatible with holders designed for the DCM-7?
A2: KTK-7 shares the same package type and dimensions (5AG, 10mm x 38mm) and is specified as cartridge type requiring a holder.

Q3: Does the substitute KTK-7 support both AC and DC operation?
A3: The provided parameters specify 600 VAC for KTK-7. DC voltage rating is not specified in the provided parameters.

Q4: Is there a difference in breaking capacity between DCM-7 and KTK-7?
A4: DCM-7 specifies 100kA AC, 50kA DC. KTK-7 specifies 100kA at the voltage rating provided.

Q5: Does approval status differ between the DCM-7 and KTK-7?
A5: Both parts are noted as being approved by CSA and UL based on the provided parameters.

Q6: How does RoHS status affect selection?
A6: KTK-7 is noted as RoHS compliant; DCM-7's RoHS status is not specified. Selection should consider compliance needs when required for the application.

Q7: Are there physical or mechanical differences between DCM-7 and KTK-7?
A7: Both fuses share identical reported size and package/case characteristics, ensuring mechanical compatibility in the same fuse holder.