SCHURTER 3-128-320 MSM-30 Pushbutton Switch Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-128-320 is an MSM-30 series pushbutton switch classified as obsolete. As an obsolete product, direct replacement with an active equivalent is necessary for new designs, maintenance applications, and procurement continuity. The MSM series from SCHURTER provides modern alternatives that maintain functional compatibility within the pushbutton switch category.

Substiute Parts

3-128-320

SCHURTER Inc.In Stock: 10893-128-320 Datasheet

Current PartRFQ

3-146-044

SCHURTER Inc.In Stock: 11433-146-044 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SCHURTER 3-146-044 qualifies as a direct substitute based on the following criteria:

• Manufacturer Consistency: Both parts are manufactured by SCHURTER Inc., ensuring design philosophy and quality standards alignment
• Series Continuity: The substitute part belongs to the MSM series, the modern active product line that supersedes the MSM-30 series
• Product Category: Both are classified as pushbutton switches, maintaining functional equivalence
• Product Status: The substitute is Active, providing long-term availability and supply chain stability
• Electrical Specifications: The substitute provides defined electrical ratings (5A at 125V AC, DPDT circuit configuration) suitable for pushbutton switch applications

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 3-146-044 is the appropriate substitute for the obsolete 3-128-320 based on product status and manufacturer continuity. The substitute is an active product with defined electrical and mechanical specifications, ensuring procurement reliability and design validation. Selection of the active MSM series component eliminates obsolescence risk and provides access to current manufacturing quality standards.

Frequently Asked Questions (FAQ)

Q: Why is the 3-128-320 no longer available? A: The 3-128-320 is classified as obsolete and has been superseded by the active MSM series, including the 3-146-044.

Q: What are the key differences between the original and substitute part? A: The substitute provides fully specified electrical ratings (DPDT, 5A at 125V AC), illumination capability (LED, Green), and defined mechanical characteristics (200,000 cycle life). The original part specifications are not fully documented in available data.

Q: Is the 3-146-044 a direct pin-for-pin replacement? A: Both parts are SCHURTER pushbutton switches within the MSM product family. The substitute features panel mount front configuration with quick connect termination (0.110" / 2.8mm). Physical compatibility must be verified against your specific application requirements, including panel cutout dimensions (Circular - 30.10mm Dia for the substitute).

Q: What is the inventory status of the substitute part? A: The SCHURTER 3-146-044 has 1090 Pcs New Original In Stock, providing immediate availability.

Q: Can I use the 3-146-044 in new designs? A: Yes. The 3-146-044 is an active product and is suitable for new design implementations. It provides long-term supply chain stability and current manufacturing support.