Omron D4GL-4DFA-A4-NPT Interlock Solenoid Release - Equivalent & Substitute Parts

Part Overview

The Omron D4GL-4DFA-A4-NPT is a DPST interlock solenoid release switch designed for panel disconnect applications. This component features a 24VDC supply voltage, 240VAC circuit rating, and 102kgf holding force with IP67 ingress protection. The product is classified as obsolete, making identification of functionally equivalent active alternatives necessary for ongoing system maintenance and new installations.

Substiute Parts

D4GL-4DFA-A4-NPT

Omron Automation and SafetyIn Stock: 987D4GL-4DFA-A4-NPT Datasheet

Current PartRFQ

D4SL-N3DFA

Omron Automation and SafetyIn Stock: 1103D4SL-N3DFA Datasheet

SimilarRFQ

D4SL-N3DFA-N

Omron Automation and SafetyIn Stock: 783D4SL-N3DFA-N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The D4GL-4DFA-A4-NPT has been superseded by components from the active D4SL-N series. Substitution is based on the following critical parameters that remain consistent across the main part and substitute options:

• Circuit configuration: DPST-NC x 2
• Actuator type: Panel Disconnect
• Termination style: Screw Terminal
• Operating temperature range: -10°C ~ 55°C
• Ingress protection: IP67 - Dust Tight, Waterproof
• Approval agencies: CE and TUV certifications maintained

The D4SL-N series substitutes provide enhanced electrical performance (higher current ratings and expanded voltage options) while maintaining mechanical and environmental compatibility. Both substitute parts are active products with current manufacturing status and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

Both D4SL-N3DFA and D4SL-N3DFA-N are active products suitable for replacing the obsolete D4GL-4DFA-A4-NPT. Selection between the two D4SL-N variants should be based on application-specific requirements and inventory considerations, as they share identical electrical and mechanical specifications.

The D4SL-N series provides enhanced performance characteristics compared to the original part, including increased holding force (133kgf versus 102kgf) and expanded voltage compatibility. Both substitutes maintain CE and TUV certifications, ensuring compliance with applicable regulatory standards. The conduit thread size differs (1/2" NPT versus M20), requiring verification of mechanical fit within the installation environment.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N3DFA and D4SL-N3DFA-N be used interchangeably?

A: Yes. Both parts share identical electrical specifications (1.5A AC, 220mA DC, 120VAC/125VDC ratings), mechanical configuration (DPST-NC x 2, Panel Disconnect actuator, Screw Terminal), and environmental ratings (IP67, -10°C ~ 55°C). Selection may be based on inventory availability or specific HTSUS classification requirements.

Q: What is the impact of the conduit thread size change from M20 to 1/2" NPT?

A: The substitutes use 1/2" NPT threading instead of M20. This requires verification that the installation enclosure or conduit adapter supports 1/2" NPT connections. Mechanical compatibility must be confirmed before component selection.

Q: Are the D4SL-N substitutes approved for the same regulatory environments?

A: The D4SL-N series maintains CE and TUV certifications present in the original part. The substitutes add CCC certification. Verify that all required certifications for your specific application are present in the selected substitute.

Q: How does the increased holding force of the D4SL-N series affect compatibility?

A: The D4SL-N series provides 133kgf holding force compared to 102kgf in the original part. This represents an enhancement that does not reduce compatibility. Applications requiring the original holding force specification will continue to function with the higher-force substitute.

Q: What voltage considerations apply when selecting a substitute?

A: The original D4GL-4DFA-A4-NPT operates at 240VAC circuit rating with 24VDC supply. The D4SL-N substitutes operate at 120VAC circuit rating with 120VAC or 125VDC supply options. Verify that your system voltage matches the selected substitute's specifications before installation.