Eaton DCM-20 Equivalent & Substitute Parts Reference

Part Overview

The Eaton DCM-20 is a 20A, 600 VAC/VDC fuse cartridge, requiring a holder and conforming to the 5AG (Midget) form factor. It is designed for electrical and industrial applications with a fast blow response. The part is obsolete, necessitating the identification of suitable alternative models to ensure continuous support, maintenance, and compatibility in existing systems.

Substiute Parts

DCM-20

Eaton - Bussmann Electrical DivisionIn Stock: 686DCM-20 Datasheet

Current PartRFQ

KTK-20

Eaton - Bussmann Electrical DivisionIn Stock: 2638KTK-20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part group selection is strictly based on matching the following parameters: current rating, voltage rating (AC), response time, fuse type, package/case, size/dimension, mounting type, approval agency, and application category. These attributes are critical to ensuring electrical and mechanical compatibility and compliance with regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

Selection between Eaton DCM-20 and KTK-20 is based on matching current rating, voltage rating (AC), response time, fuse type, case/package, and dimensions, as well as approval by CSA and UL for electrical and industrial applications. The DCM-20 is obsolete; KTK-20 is active and compliant with RoHS3 and REACH requirements. For cases requiring continued compliance and active supply, KTK-20 is a suitable alternative based on documented certifications and inventory availability.

Frequently Asked Questions (FAQ)

Q1: Which parameters are critical when selecting a substitute for Eaton DCM-20?
A1: Critical parameters include current rating (20A), voltage rating (600 VAC), response time (fast blow), fuse type (cartridge), package/case (5AG, 10mm x 38mm Midget), size/dimension (0.406" Dia x 1.500" L), mounting type (requires holder), and approval agency (CSA, UL).

Q2: Are DCM-20 and KTK-20 directly interchangeable in assemblies requiring a 5AG holder?
A2: Both DCM-20 and KTK-20 match in case/package (5AG, 10mm x 38mm Midget), size/dimension, mounting type, and certifications, enabling direct interchangeability for designs that specify these attributes.

Q3: Does the substitute KTK-20 provide the same electrical protection characteristics as DCM-20?
A3: KTK-20 matches DCM-20 in current rating, voltage rating (AC), and response time, maintaining equivalent electrical protection characteristics within electrical and industrial applications.

Q4: Should fuse class or additional feature parameters be considered?
A4: Fuse class and feature fields are not provided for these part numbers, so only listed key parameters are used for substitution compatibility.

Q5: Is compliance with approval agencies maintained with the substitute part?
A5: Both DCM-20 and KTK-20 are approved by CSA and UL, ensuring regulatory compliance within intended applications.