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

Part Overview

The Omron D4GL-4AFG-A4-NPT is an interlock solenoid locking switch designed for panel disconnect applications with dual-pole, single-throw configuration. This component features a 24VDC supply voltage, 240VAC switching capability, and 102kgf holding force. The product is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility across critical electrical and mechanical parameters.

Substiute Parts

D4GL-4AFG-A4-NPT

Omron Automation and SafetyIn Stock: 929D4GL-4AFG-A4-NPT Datasheet

Current PartRFQ

D4SL-N3AFG

Omron Automation and SafetyIn Stock: 882D4SL-N3AFG Datasheet

SimilarRFQ

D4SL-N3AFG-N

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-4AFG-A4-NPT is based on the following critical parameters that define functional equivalence:

Mandatory Compatibility Criteria:

• Circuit configuration: DPST-NO/NC (DB/DM) x 2
• Actuator type: Panel Disconnect
• Ingress protection: IP67 minimum
• Operating temperature range: -10°C to 55°C minimum
• Termination compatibility with existing installation

Identified Substitutes: The D4SL-N series (D4SL-N3AFG and D4SL-N3AFG-N) share the same circuit configuration, actuator type, ingress protection rating, and operating temperature range. Both parts are active products from Omron Automation and Safety. Substitution feasibility depends on electrical parameter compatibility and termination style requirements specific to the installation.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N3AFG (Screw Terminal Configuration): This substitute is suitable for installations requiring screw terminal termination. The part is active and carries expanded regulatory approvals (CCC, CE, cURus, TUV). Electrical parameter differences include higher AC current rating (1.5A vs. 750mA) and lower holding force (6kgf vs. 102kgf). The voltage rating operates at 120VAC/125VDC, which differs from the original 240VAC specification. Conduit thread size is 1/2" NPT rather than M20.

D4SL-N3AFG-N (Connector Configuration): This substitute provides connector-based termination as an alternative to screw terminals. It shares identical electrical specifications and regulatory approvals with the D4SL-N3AFG. Selection between D4SL-N3AFG and D4SL-N3AFG-N depends solely on termination style compatibility with the existing installation.

Both D4SL-N series parts are active products with current manufacturing support and inventory availability, providing long-term supply security compared to the obsolete D4GL-4AFG-A4-NPT.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N3AFG or D4SL-N3AFG-N directly replace D4GL-4AFG-A4-NPT?

A: Both D4SL-N series parts maintain the same circuit configuration (DPST-NO/NC x 2), actuator type (Panel Disconnect), ingress protection (IP67), and operating temperature range. However, electrical parameters differ: the D4SL-N series operates at 120VAC/125VDC with 1.5A AC current and 6kgf holding force, whereas the original operates at 240VAC with 750mA AC current and 102kgf holding force. Substitution is valid only if the application tolerates these electrical parameter differences and the installation supports the different voltage and current specifications.

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

A: The primary difference is termination style. D4SL-N3AFG uses screw terminals, while D4SL-N3AFG-N uses connector-based termination. All other electrical and mechanical parameters are identical. Selection depends on the termination method required by the existing installation.

Q: Why does the holding force differ between the original and substitute parts?

A: The D4GL-4AFG-A4-NPT specifies 102kgf holding force, while the D4SL-N series specifies 6kgf. This parameter difference is provided in the technical specifications and must be evaluated against application requirements. The substitute is valid only if the application can function with the lower holding force value.

Q: Are the D4SL-N series parts compatible with the original voltage supply?

A: The D4GL-4AFG-A4-NPT operates at 240VAC switching voltage with 24VDC supply. The D4SL-N series operates at 120VAC/125VDC. These voltage specifications differ and must be verified against the application circuit before substitution.

Q: What regulatory approvals do the substitute parts carry?

A: Both D4SL-N3AFG and D4SL-N3AFG-N carry CCC, CE, cURus, and TUV approvals. The original D4GL-4AFG-A4-NPT carries CE, cULus, and TUV approvals. Verify that the substitute approvals meet the regulatory requirements of the target application.