D4GL-1HFA-A Equivalent & Substitute Parts

Part Overview

The D4GL-1HFA-A is an interlock solenoid release manufactured by Omron Automation and Safety, configured as a 3PST-NC + DPST-NC switch with panel disconnect actuation. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance and new system designs. The D4GL-1HFA-A operates at 240VAC with 24VDC supply voltage and provides a holding force of 102kgf, suitable for industrial safety interlock applications requiring high holding force and dust/waterproof operation.

Substiute Parts

D4GL-1HFA-A

Omron Automation and SafetyIn Stock: 1210D4GL-1HFA-A Datasheet

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D4SL-N4HFA-D

Omron Automation and SafetyIn Stock: 884D4SL-N4HFA-D Datasheet

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D4SL-N4HFA-DN

Omron Automation and SafetyIn Stock: 960D4SL-N4HFA-DN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the D4GL-1HFA-A is based on the following allowed parameters:

• Circuit configuration: 3PST-NC + DPST-NC
• Supply voltage: 24VDC
• Actuator type: Panel Disconnect
• Ingress protection: IP67
• Operating temperature range: -10°C ~ 55°C
• Status indicator feature presence

The D4SL-N series parts (D4SL-N4HFA-D and D4SL-N4HFA-DN) maintain identical circuit configuration, supply voltage, actuator type, ingress protection, and operating temperature range. Both substitute parts are active products from the same manufacturer, ensuring design continuity and availability. The primary differences are in holding force (6kgf versus 102kgf), current ratings, voltage ratings, conduit thread size, and termination style options.

Parameter Comparison

Engineering Selection Recommendations

The D4SL-N4HFA-D and D4SL-N4HFA-DN are active products suitable for replacing the obsolete D4GL-1HFA-A in applications where the reduced holding force of 6kgf is acceptable. Both substitute parts maintain the same circuit configuration, supply voltage, actuator type, ingress protection rating, and operating temperature range as the original part.

Selection between the two substitute options depends on termination requirements: D4SL-N4HFA-D provides screw terminal connectivity matching the original part's termination style, while D4SL-N4HFA-DN uses connector-based termination. The D4SL-N series carries expanded regulatory approvals (CCC, CE, cURus, TUV) compared to the original part (CE, cULus, TUV), providing broader compliance coverage for international applications.

Applications requiring the original 102kgf holding force cannot use these substitutes and require alternative component evaluation outside this substitution group.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4HFA-D or D4SL-N4HFA-DN directly replace D4GL-1HFA-A in existing installations?

A: Direct replacement is possible only if the application does not depend on the 102kgf holding force specification. Both substitute parts maintain identical circuit configuration (3PST-NC + DPST-NC), supply voltage (24VDC), actuator type (Panel Disconnect), ingress protection (IP67), and operating temperature range (-10°C ~ 55°C). The D4SL-N4HFA-D matches the screw terminal configuration of the original part.

Q: What is the primary difference between D4SL-N4HFA-D and D4SL-N4HFA-DN?

A: The termination style differs between the two parts. D4SL-N4HFA-D uses screw terminals, while D4SL-N4HFA-DN uses connector-based termination. All other electrical and mechanical parameters are identical.

Q: Why does the D4GL-1HFA-A have a significantly higher holding force than the D4SL-N substitutes?

A: The D4GL-1HFA-A and D4SL-N series represent different product lines within Omron's solenoid release portfolio, designed for different force requirements. The D4GL series provides higher holding force (102kgf), while the D4SL-N series provides lower holding force (6kgf) with different voltage and current ratings.

Q: Are the substitute parts compatible with the same mounting and conduit connections?

A: Conduit thread sizes differ between the original and substitute parts. The D4GL-1HFA-A uses PG14.6 conduit threading, while both D4SL-N substitutes use M20 threading. Mechanical mounting compatibility must be verified for specific installation requirements.

Q: What regulatory approvals do the substitute parts carry?

A: Both D4SL-N4HFA-D and D4SL-N4HFA-DN carry CCC, CE, cURus, and TUV approvals, providing broader international compliance than the original D4GL-1HFA-A (CE, cULus, TUV).