Omron D4B-3111N Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The Omron D4B-3111N is a snap action switch with SPDT circuit configuration, rated for 10A AC at 120V and 6A DC at 30V. This component features a side rotary roller actuator with chassis mount termination and IP67 ingress protection. The D4B-3111N is classified as obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and redesign applications. Active alternatives within the D4B-N series and compatible Honeywell GSA series switches provide functional continuity for applications requiring snap action switching with comparable electrical and mechanical specifications.

Substiute Parts

D4B-3111N

Omron Automation and SafetyIn Stock: 1167D4B-3111N Datasheet

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D4B-4111N

Omron Automation and SafetyIn Stock: 1113D4B-4111N Datasheet

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GSAA04A1B

Honeywell Sensing and Productivity SolutionsIn Stock: 1178GSAA04A1B Datasheet

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GSAB01A1B

Honeywell Sensing and Productivity SolutionsIn Stock: 1100GSAB01A1B Datasheet

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GSAC07A1B

Honeywell Sensing and Productivity SolutionsIn Stock: 10168GSAC07A1B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4B-3111N is determined by alignment across the following critical parameters: circuit configuration (SPDT), switch function (On-Mom), current and voltage ratings, actuator type (side rotary roller), mounting method (chassis mount), termination style (screw terminal), and ingress protection rating (IP67). Parts are grouped into two categories based on these criteria:

Category 1: Direct Series Substitutes (Omron D4B-N Series) Parts within the D4B-N series maintain identical electrical specifications, mechanical characteristics, and form factors. The D4B-4111N serves as the primary active substitute, offering the same SPDT circuit, 10A AC / 6A DC ratings, 120V AC / 30V DC voltage specifications, and IP67 protection with chassis mount screw terminal configuration.

Category 2: Cross-Manufacturer Alternatives (Honeywell GSA Series) The GSAA04A1B, GSAB01A1B, and GSAC07A1B represent Honeywell alternatives with compatible mounting, termination, and ingress protection characteristics. However, these parts exhibit variations in circuit configuration, current ratings, and operational specifications that require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: D4B-4111N The Omron D4B-4111N is the recommended substitute for the obsolete D4B-3111N. Both parts maintain identical electrical specifications (10A AC / 6A DC, 120V AC / 30V DC), circuit configuration (SPDT), mechanical characteristics, and form factor. The D4B-4111N is active in production status and ROHS3 compliant, providing direct compatibility with existing designs. Packaging differs (D4B-4111N supplied in bulk versus D4B-3111N in standard packaging), but electrical and mechanical performance are equivalent.

Secondary Alternatives: Honeywell GSA Series The GSAA04A1B, GSAB01A1B, and GSAC07A1B represent cross-manufacturer alternatives with compatible mounting, termination, and environmental protection. These parts share chassis mount configuration, screw terminal termination, and IP67 ingress protection. However, electrical specifications differ significantly: GSAA04A1B is rated for 6A AC / 2.8A DC at 120V AC / 24V DC with DPST-NO/NC circuit configuration, and GSAB01A1B and GSAC07A1B lack complete electrical specification data. These alternatives are suitable only for applications where reduced current capacity and modified circuit topology are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the D4B-4111N directly replace the D4B-3111N in existing applications? A: Yes. The D4B-4111N provides direct electrical and mechanical equivalence to the D4B-3111N. Both parts feature identical SPDT circuit configuration, 10A AC / 6A DC current ratings, 120V AC / 30V DC voltage ratings, side rotary roller actuator, chassis mount configuration, screw terminal termination, and IP67 ingress protection. The D4B-4111N is the active production equivalent.

Q: What are the key differences between the Omron D4B-4111N and Honeywell GSAA04A1B? A: The D4B-4111N maintains the original D4B-3111N specifications with 10A AC / 6A DC ratings and SPDT circuit configuration. The GSAA04A1B operates at reduced current capacity (6A AC / 2.8A DC), features DPST-NO/NC circuit topology, and operates at 24V DC maximum versus 30V DC. Both share chassis mount, screw terminal, and IP67 protection. Selection depends on application current and voltage requirements.

Q: Are the Honeywell GSA series switches suitable for high-cycle applications? A: Honeywell GSA series switches (GSAA04A1B, GSAB01A1B, GSAC07A1B) are rated for 25,000 electrical cycles and 1,000,000 mechanical cycles. The Omron D4B series (D4B-3111N, D4B-4111N) provides significantly higher cycle ratings at 500,000 electrical cycles and 30,000,000 mechanical cycles. For applications requiring extended operational life, the Omron D4B-4111N is the appropriate selection.

Q: What packaging options are available for substitute parts? A: The D4B-4111N is supplied in bulk packaging. The D4B-3111N was supplied in standard packaging. The Honeywell GSA series parts (GSAA04A1B, GSAB01A1B, GSAC07A1B) are supplied in bulk or standard packaging configurations. Verify packaging requirements with component suppliers for procurement planning.

Q: Do all substitute parts meet RoHS compliance requirements? A: The D4B-4111N is ROHS3 compliant. The Honeywell GSA series parts (GSAA04A1B, GSAB01A1B, GSAC07A1B) are RoHS compliant. Both compliance levels are suitable for current regulatory requirements. Verify specific RoHS revision requirements for your application and region.

Q: What is the operating temperature range difference between Omron and Honeywell alternatives? A: The Omron D4B-3111N and D4B-4111N operate across -40°C to 80°C. The Honeywell GSA series switches operate across -25°C to 80°C. For applications requiring operation below -25°C, the Omron D4B-4111N is required.