Omron D4GL-4DFA-A Interlock Solenoid Release DPST Equivalent & Substitute Parts

Part Overview

The Omron D4GL-4DFA-A is an interlock solenoid release switch designed for panel disconnect applications with dual pole single throw normally closed (DPST-NC x 2) circuit configuration. This component operates at 240VAC with 24VDC supply voltage and provides a holding force of 102kgf. The D4GL-4DFA-A has reached obsolete product status, necessitating identification of functionally equivalent alternatives from the current Omron D4SL-N series to maintain system compatibility and ensure continued availability for maintenance and replacement applications.

Substiute Parts

D4GL-4DFA-A

Omron Automation and SafetyIn Stock: 1160D4GL-4DFA-A Datasheet

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D4SL-N4DFA

Omron Automation and SafetyIn Stock: 908D4SL-N4DFA Datasheet

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D4SL-N4DFA-N

Omron Automation and SafetyIn Stock: 1152D4SL-N4DFA-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-4DFA-A is determined by the following critical parameters that must remain consistent across equivalent parts:

Mandatory Compatibility Parameters:

• Circuit configuration: DPST-NC x 2
• Actuator type: Panel Disconnect
• Conduit thread size: M20
• Ingress protection rating: IP67
• Operating temperature range: -10°C to 55°C
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variation Parameters:

• Current rating: The D4SL-N series supports 1.5A (AC) and 220mA (DC), which accommodates the original 750mA AC requirement
• Voltage rating: The D4SL-N series operates at 120VAC and 125VDC, representing a different voltage class suitable for alternative supply configurations
• Holding force: The D4SL-N series provides 6kgf, which differs from the original 102kgf and must be evaluated for specific application requirements
• Termination style: Available in both Screw Terminal and Connector options
• Approval agencies: The D4SL-N series maintains CE and TUV certifications with additional CCC and cURus approvals

The D4SL-N4DFA and D4SL-N4DFA-N are active production alternatives that preserve the core functional architecture while offering modern component availability and extended support lifecycle.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4DFA (Screw Terminal Configuration)

The D4SL-N4DFA maintains screw terminal termination consistent with the original D4GL-4DFA-A design. This variant is suitable for applications where existing wiring infrastructure and panel layouts accommodate screw-based connections. The active product status ensures long-term availability and manufacturer support. Selection of this variant requires evaluation of voltage supply compatibility, as the D4SL-N operates at 120VAC/125VDC rather than the original 240VAC specification.

D4SL-N4DFA-N (Connector Configuration)

The D4SL-N4DFA-N provides connector-based termination, offering advantages in applications requiring rapid connection and disconnection cycles or standardized connector interfaces. This variant shares identical electrical and mechanical specifications with the D4SL-N4DFA, with termination style as the primary differentiator. Connector configuration may require panel modification or adapter solutions if the original installation uses screw terminal infrastructure.

Voltage and Holding Force Considerations

Both D4SL-N alternatives operate at 120VAC/125VDC supply voltages, which differ from the original 240VAC specification. Applications must be evaluated to determine compatibility with alternative voltage classes or the necessity for step-down transformer solutions. The holding force reduction from 102kgf to 6kgf represents a significant mechanical change and must be assessed against application load requirements and safety margins.

Compliance and Certification

Both D4SL-N variants maintain CE and TUV certifications required for European and North American markets. The addition of CCC and cURus certifications provides expanded regulatory coverage. Existing system certifications and compliance documentation should be reviewed to confirm acceptance of these alternative approvals.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4DFA directly replace the D4GL-4DFA-A without modification?

A: Direct replacement requires evaluation of three critical factors: voltage supply compatibility (120VAC/125VDC versus 240VAC), holding force adequacy (6kgf versus 102kgf), and termination style compatibility (screw terminal or connector). Physical mounting and electrical integration may require adjustment.

Q: What is the primary difference between D4SL-N4DFA and D4SL-N4DFA-N?

A: The D4SL-N4DFA uses screw terminal connections, while the D4SL-N4DFA-N uses connector-based termination. All other electrical and mechanical specifications are identical. Selection depends on existing panel infrastructure and connection methodology.

Q: Are the D4SL-N variants suitable for the same applications as the D4GL-4DFA-A?

A: The D4SL-N variants maintain identical circuit configuration (DPST-NC x 2), actuator type (Panel Disconnect), ingress protection (IP67), and operating temperature range (-10°C to 55°C). Applications must be evaluated for compatibility with the different voltage class and reduced holding force specification.

Q: What certifications do the D4SL-N variants carry?

A: Both D4SL-N4DFA and D4SL-N4DFA-N carry CCC, CE, cURus, and TUV certifications. These certifications cover regulatory requirements for Chinese, European, North American, and international markets.

Q: Is the D4GL-4DFA-A still available for purchase?

A: The D4GL-4DFA-A is classified as obsolete. The D4SL-N4DFA and D4SL-N4DFA-N are active production alternatives with confirmed inventory availability.

Q: How does the holding force difference affect component selection?

A: Holding force determines the mechanical load capacity of the solenoid release mechanism. The reduction from 102kgf to 6kgf represents a significant change. Applications must be analyzed to confirm that the lower holding force meets load requirements and maintains adequate safety margins for the intended use case.