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

Part Overview

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

The D4GL-4GFG-A4 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for maintenance, repair, and new installations where this legacy component is specified.

Substiute Parts

D4GL-4GFG-A4

Omron Automation and SafetyIn Stock: 967D4GL-4GFG-A4 Datasheet

Current PartRFQ

D4SL-N4GFG-D4

Omron Automation and SafetyIn Stock: 1205D4SL-N4GFG-D4 Datasheet

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D4SL-N4GFG-D4N

Omron Automation and SafetyIn Stock: 839D4SL-N4GFG-D4N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D4GL-4GFG-A4 are identified based on the following critical parameters that determine functional compatibility:

Mandatory Matching Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Locking
• Circuit Configuration: 3PST-NC + DPST-NO/NC
• Voltage Supply: 24VDC
• Actuator Type: Panel Disconnect
• Conduit Thread Size: M20
• Operating Temperature Range: -10°C ~ 55°C
• Ingress Protection: IP67
• Features: Status Indicator

Allowable Variations:

• Voltage Rating (Switching): The D4GL-4GFG-A4 operates at 240VAC; substitute parts operate at 120VAC/125VDC, which represents a different switching voltage class but maintains the same solenoid locking function within their respective voltage domains.
• Current Rating: The D4GL-4GFG-A4 is rated at 750mA (AC); substitute parts are rated at 1.5A (AC) and 220mA (DC), representing higher AC capacity and lower DC capacity.
• Holding Force: The D4GL-4GFG-A4 provides 102kgf; substitute parts provide 6kgf, a significant reduction in holding force that may affect application suitability.
• Termination Style: The D4GL-4GFG-A4 uses screw terminals; one substitute uses screw terminals while another uses connector termination.
• Product Status: The D4GL-4GFG-A4 is obsolete; substitute parts are active products.

The D4SL-N series (D4SL-N4GFG-D4 and D4SL-N4GFG-D4N) are the identified substitutes based on matching the core solenoid locking architecture, control voltage, and mechanical interface specifications.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4GFG-D4 (Screw Terminal Variant)

This substitute is recommended for applications where the original D4GL-4GFG-A4 screw terminal interface must be preserved. The D4SL-N4GFG-D4 maintains identical termination style, control voltage (24VDC), circuit configuration, mechanical interface (M20 conduit thread), and environmental protection (IP67). The product is active and carries expanded regulatory approvals (CCC, CE, cURus, TUV) compared to the obsolete original. RoHS compliance status is confirmed.

Critical consideration: The D4SL-N4GFG-D4 operates at 120VAC/125VDC switching voltage versus the original 240VAC specification. Applications requiring 240VAC switching capability cannot use this substitute without circuit redesign. Additionally, the holding force is reduced from 102kgf to 6kgf; applications dependent on the original holding force specification require engineering evaluation.

D4SL-N4GFG-D4N (Connector Termination Variant)

This substitute provides identical electrical and mechanical specifications to the D4SL-N4GFG-D4 with connector termination instead of screw terminals. Selection of this variant is appropriate for applications where connector-based wiring is preferred or required. The same voltage and holding force considerations apply.

Substitution Feasibility Summary

Both D4SL-N series parts are functionally equivalent to the D4GL-4GFG-A4 within the constraints of their reduced switching voltage rating and holding force. The choice between D4SL-N4GFG-D4 and D4SL-N4GFG-D4N depends solely on termination style requirements. Substitution is viable only for applications that can accommodate 120VAC/125VDC switching operation and 6kgf holding force.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4GFG-D4 directly replace the D4GL-4GFG-A4 in a 240VAC switching application?

A: No. The D4SL-N4GFG-D4 is rated for 120VAC/125VDC switching, not 240VAC. Direct substitution in a 240VAC circuit will result in component failure or unsafe operation. Circuit redesign or alternative component selection is required for 240VAC applications.

Q: What is the difference between D4SL-N4GFG-D4 and D4SL-N4GFG-D4N?

A: Both parts are electrically and mechanically identical. The sole difference is termination style: D4SL-N4GFG-D4 uses screw terminals, while D4SL-N4GFG-D4N uses connector termination. Selection depends on the wiring interface required by your application.

Q: Is the reduced holding force (6kgf vs. 102kgf) a concern for my application?

A: This depends on your specific application requirements. If the original 102kgf holding force is critical to system safety or function, the D4SL-N series substitutes are not suitable. Consult your application documentation to determine the minimum required holding force.

Q: Are the D4SL-N substitutes RoHS compliant?

A: The D4SL-N4GFG-D4 is confirmed RoHS compliant. RoHS status for the D4SL-N4GFG-D4N is not specified in available data.

Q: What regulatory approvals do the substitute parts carry?

A: Both D4SL-N4GFG-D4 and D4SL-N4GFG-D4N carry CCC, CE, cURus, and TUV approvals. The original D4GL-4GFG-A4 carried CE, cULus, and TUV approvals. Verify that the substitute approvals meet your regional compliance requirements.

Q: Can I use these substitutes in the same mechanical mounting as the original?

A: Yes. Both substitutes maintain the same M20 conduit thread size, panel disconnect actuator type, and IP67 ingress protection as the original D4GL-4GFG-A4. Mechanical mounting compatibility is preserved.

Q: Why is the D4GL-4GFG-A4 obsolete?

A: Product obsolescence is determined by the manufacturer. The D4SL-N series represents the current active product line for this solenoid locking switch category from Omron.