Omron D4GL-1FFG-A Interlock Solenoid Locking Switch: Equivalent & Substitute Parts

Part Overview

The Omron D4GL-1FFG-A is a 3PST interlock solenoid locking switch designed for panel disconnect applications with a 24VDC supply voltage and 240VAC rated load capacity. This component features a 102kgf holding force, screw terminal connections, and IP67 ingress protection suitable for industrial control environments.

The D4GL-1FFG-A is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new installations where this legacy component is specified.

Substiute Parts

D4GL-1FFG-A

Omron Automation and SafetyIn Stock: 1160D4GL-1FFG-A Datasheet

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D4SL-N4FFG-D

Omron Automation and SafetyIn Stock: 1047D4SL-N4FFG-D Datasheet

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D4SL-N4FFG-DN

Omron Automation and SafetyIn Stock: 951D4SL-N4FFG-DN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-1FFG-A is based on the following critical parameters that must align for functional equivalence:

Mandatory Matching Parameters:

• Solenoid locking type and panel disconnect actuator configuration
• 3PST-2NC/1NO + DPST-NC circuit topology
• 24VDC supply voltage
• IP67 ingress protection rating
• Status indicator feature
• Operating temperature range (-10°C to 55°C)
• Screw terminal or connector termination compatibility

Allowable Variations:

• Current rating and voltage rating may differ if the substitute accommodates the application's load requirements
• Holding force may vary based on application mechanical demands
• Conduit thread size and connector type may differ based on installation configuration
• Approval certifications may expand (substitute may have additional certifications)

The D4SL-N series represents the active product line successor to the obsolete D4GL series, maintaining the same circuit topology, supply voltage, and protective features while offering modern availability and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4FFG-D (Screw Terminal Configuration): This substitute is recommended for applications requiring screw terminal connections identical to the D4GL-1FFG-A. The D4SL-N4FFG-D maintains active product status with current manufacturing support, expanded approval certifications (CCC, CE, cURus, TUV), and confirmed inventory availability. The reduced holding force (6kgf versus 102kgf) must be evaluated against specific application mechanical requirements. The increased AC current rating (1.5A versus 750mA) and expanded voltage rating (120VAC, 125VDC) provide broader operational flexibility.

D4SL-N4FFG-DN (Connector Configuration): This substitute is applicable for installations where connector-based termination is acceptable or preferred. It shares identical electrical specifications and approvals with the D4SL-N4FFG-D variant. Selection between screw terminal and connector configurations depends on installation methodology and panel integration requirements.

Both D4SL-N series substitutes provide superior compliance certifications and active product lifecycle status compared to the obsolete D4GL-1FFG-A, ensuring long-term component availability and technical support.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4FFG-D or D4SL-N4FFG-DN directly replace the D4GL-1FFG-A in existing installations?

A: Direct replacement is possible if the application's mechanical holding force requirement does not exceed 6kgf. The D4GL-1FFG-A specifies 102kgf holding force, while D4SL-N substitutes provide 6kgf. Verify that the reduced holding force is compatible with your locking mechanism design. All other functional parameters—circuit topology, supply voltage, ingress protection, and operating temperature—are equivalent.

Q: What is the difference between D4SL-N4FFG-D and D4SL-N4FFG-DN?

A: The primary difference is termination style. D4SL-N4FFG-D uses screw terminals, matching the D4GL-1FFG-A connection method. D4SL-N4FFG-DN uses connector-based termination. Electrical specifications, circuit configuration, and performance characteristics are identical. Selection depends on your panel wiring infrastructure and installation requirements.

Q: Are the voltage ratings compatible between the D4GL-1FFG-A and D4SL-N substitutes?

A: The D4GL-1FFG-A is rated for 240VAC load switching. The D4SL-N series is rated for 120VAC and 125VDC load switching. If your application requires 240VAC load switching capability, the D4SL-N substitutes do not provide equivalent voltage rating. Verify that 120VAC or 125VDC load ratings are acceptable for your circuit design.

Q: What approvals do the substitute parts carry?

A: Both D4SL-N4FFG-D and D4SL-N4FFG-DN carry CCC, CE, cURus, and TUV certifications. The original D4GL-1FFG-A carries CE, cULus, and TUV certifications. The D4SL-N substitutes provide expanded regulatory compliance, including CCC certification not present on the original part.

Q: Is the conduit thread size difference significant?

A: The D4GL-1FFG-A uses PG14.6 conduit threading, while D4SL-N substitutes use M20. This difference requires mechanical adapter evaluation or panel modification. Confirm that M20 conduit compatibility is acceptable for your installation environment.

Q: What is the current inventory status for these substitutes?

A: D4SL-N4FFG-D has 1034 pieces in stock. D4SL-N4FFG-DN has 912 pieces in stock. Both are classified as active products with ongoing manufacturing support, ensuring continued availability for future orders.