Omron D4GL-4EFG-A4 Interlock Solenoid Locking Switch - Equivalent & Substitute Parts

Part Overview

The Omron D4GL-4EFG-A4 is a 3PST interlock solenoid locking switch designed for panel disconnect applications with 24VDC supply voltage and 240VAC rated switching capacity. This component features a 102kgf holding force, screw terminal connections, and IP67 ingress protection suitable for industrial control and safety interlock systems.

The D4GL-4EFG-A4 is classified as obsolete. Equivalent substitute parts from the active D4SL-N series are available to maintain system functionality and ensure continued component availability for new installations and field replacements.

Substiute Parts

D4GL-4EFG-A4

Omron Automation and SafetyIn Stock: 995D4GL-4EFG-A4 Datasheet

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D4SL-N4EFG-D4

Omron Automation and SafetyIn Stock: 1014D4SL-N4EFG-D4 Datasheet

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D4SL-N4EFG-D4N

Omron Automation and SafetyIn Stock: 1050D4SL-N4EFG-D4N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete D4GL-4EFG-A4 with active D4SL-N series components is based on the following critical parameters:

Maintained Compatibility Parameters:

• Circuit configuration: 3PST-2NC/1NO + DPST-NO/NC (identical)
• Voltage supply: 24VDC (identical)
• Actuator type: Panel Disconnect (identical)
• Conduit thread size: M20 (identical)
• Operating temperature range: -10°C ~ 55°C (identical)
• Ingress protection: IP67 - Dust Tight, Waterproof (identical)
• Status indicator feature (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

Differing Parameters Affecting Selection:

• Holding force: D4GL-4EFG-A4 provides 102kgf; D4SL-N series provides 6kgf
• Current rating: D4GL-4EFG-A4 rated 750mA (AC); D4SL-N series rated 1.5A (AC), 220mA (DC)
• Voltage rating: D4GL-4EFG-A4 rated 240VAC; D4SL-N series rated 120VAC, 125VDC
• Termination style: D4GL-4EFG-A4 uses Screw Terminal; D4SL-N4EFG-D4N uses Connector
• Product status: D4GL-4EFG-A4 is Obsolete; D4SL-N series is Active

The D4SL-N series substitutes are suitable for applications where the lower holding force (6kgf vs. 102kgf) and different voltage/current ratings are acceptable within system design parameters.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4EFG-D4 (Screw Terminal Configuration)

This substitute maintains screw terminal connectivity identical to the original D4GL-4EFG-A4. The D4SL-N4EFG-D4 is an active product with current manufacturing status, ensuring long-term availability and supply chain continuity. Approval certifications include CCC, CE, cURus, and TUV, providing compliance for international applications. Selection of this variant is appropriate for installations requiring direct screw terminal interface compatibility.

D4SL-N4EFG-D4N (Connector Configuration)

This substitute provides the same functional circuit and control parameters as the D4SL-N4EFG-D4 but with connector-based termination. The D4SL-N4EFG-D4N is an active product with equivalent regulatory approvals (CCC, CE, cURus, TUV). Selection of this variant is appropriate for applications where connector-based installation and field replacement procedures are preferred.

Substitution Constraints

Both D4SL-N series substitutes operate with reduced holding force (6kgf versus 102kgf) and lower switching voltage ratings (120VAC, 125VDC versus 240VAC). Applications requiring the original 102kgf holding force or 240VAC switching capacity must evaluate whether the D4SL-N series performance envelope is acceptable for the intended system design. The 24VDC supply voltage requirement is maintained across all three components.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4EFG-D4 or D4SL-N4EFG-D4N directly replace the D4GL-4EFG-A4 in existing installations?

A: Direct replacement is possible only if the application does not require the original 102kgf holding force or 240VAC switching capacity. The D4SL-N series provides 6kgf holding force and 120VAC/125VDC switching ratings. Verify that your system design parameters accommodate these reduced specifications before substitution.

Q: What is the primary difference between D4SL-N4EFG-D4 and D4SL-N4EFG-D4N?

A: The D4SL-N4EFG-D4 uses screw terminal connections, while the D4SL-N4EFG-D4N uses connector-based termination. All other electrical and mechanical parameters are identical. Selection depends on your installation and maintenance procedures.

Q: Are the D4SL-N series components internationally certified?

A: Yes. Both D4SL-N4EFG-D4 and D4SL-N4EFG-D4N carry CCC, CE, cURus, and TUV approvals, providing compliance for global applications. The original D4GL-4EFG-A4 carried CE, cULus, and TUV certifications.

Q: Why is the D4GL-4EFG-A4 classified as obsolete?

A: The D4GL-4EFG-A4 is no longer in active production. The D4SL-N series represents Omron's current product line for this functional category and is recommended for new designs and field replacements.

Q: Are the circuit configurations identical between the main part and substitutes?

A: Yes. All three components feature identical 3PST-2NC/1NO + DPST-NO/NC circuit configurations and 24VDC supply voltage requirements.

Q: What is the impact of the reduced holding force in the D4SL-N series?

A: The D4SL-N series provides 6kgf holding force compared to 102kgf in the original D4GL-4EFG-A4. Applications requiring high mechanical holding force for safety interlocks must evaluate whether this reduction is acceptable for their specific use case.