D4GL-4AFG-A-NPT Equivalent & Substitute Parts

Part Overview

The D4GL-4AFG-A-NPT is an interlock solenoid locking switch manufactured by Omron Automation and Safety. This DPST (Double Pole Single Throw) component features a 24VDC supply voltage, 240VAC switching capability, and 102kgf holding force with panel disconnect actuator type and M20 conduit thread connection. The product is classified as obsolete, making identification of active equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

D4GL-4AFG-A-NPT

Omron Automation and SafetyIn Stock: 1074D4GL-4AFG-A-NPT Datasheet

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D4SL-N3AFG

Omron Automation and SafetyIn Stock: 882D4SL-N3AFG Datasheet

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D4SL-N3AFG-N

Omron Automation and SafetyIn Stock: 810D4SL-N3AFG-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the D4GL-4AFG-A-NPT is based on the following critical parameters: solenoid locking type, DPST circuit configuration, panel disconnect actuator, screw terminal or connector termination, operating temperature range (-10°C ~ 55°C), IP67 ingress protection rating, and regulatory approvals (CE, TUV). The D4SL-N series represents the active product line replacement within Omron's portfolio. Both substitute parts (D4SL-N3AFG and D4SL-N3AFG-N) maintain identical circuit configuration, actuator type, temperature range, and ingress protection specifications. The primary differences are in current rating capacity, voltage specifications, holding force, conduit thread size, and termination style (screw terminal versus connector). These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The D4GL-4AFG-A-NPT is obsolete and no longer supported by Omron Automation and Safety. Both D4SL-N3AFG and D4SL-N3AFG-N are active products with current manufacturing status and full regulatory compliance (CCC, CE, cURus, TUV certifications). Selection between these two substitutes depends on termination requirements: D4SL-N3AFG provides screw terminal connection matching the original part's termination style, while D4SL-N3AFG-N offers connector-based termination for applications requiring quick-disconnect capability. Both substitutes maintain identical circuit configuration, actuator type, temperature range, and ingress protection. Applications must account for reduced holding force (6kgf versus 102kgf) and different voltage/current specifications in the D4SL-N series compared to the original D4GL part.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N3AFG directly replace D4GL-4AFG-A-NPT in existing installations?

A: Direct mechanical and electrical compatibility requires verification of three factors: (1) holding force requirement—the D4SL-N series provides 6kgf versus the original 102kgf; (2) voltage and current specifications—D4SL-N operates at 120VAC/125VDC with 1.5A AC and 220mA DC ratings versus the original 240VAC/24VDC with 750mA AC; (3) conduit thread connection—D4SL-N uses 1/2" NPT versus the original M20 thread, requiring adapter consideration.

Q: What is the difference between D4SL-N3AFG and D4SL-N3AFG-N?

A: Both parts are electrically and functionally identical with matching circuit configuration, current ratings, voltage specifications, holding force, and regulatory approvals. The sole difference is termination style: D4SL-N3AFG uses screw terminals for permanent wiring connections, while D4SL-N3AFG-N uses connector-based termination for modular or quick-disconnect applications.

Q: Are the D4SL-N series parts certified for the same regulatory standards as the original D4GL part?

A: The D4SL-N series carries CCC, CE, cURus, and TUV certifications. The original D4GL-4AFG-A-NPT carried CE, cULus, and TUV certifications. Both meet CE and TUV requirements. The D4SL-N series adds CCC certification and uses cURus instead of cULus, representing updated regulatory compliance for current markets.

Q: What mechanical modifications are required for installation of D4SL-N substitutes?

A: Conduit thread adaptation is required—the original M20 thread must be converted to 1/2" NPT using appropriate adapters or re-drilling of mounting holes. Termination wiring must match the selected part's connection style (screw terminal or connector). Mechanical mounting verification is necessary due to potential dimensional differences between D4GL and D4SL-N series housings.