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

Part Overview

The Omron D4GL-4DFG-A4-NPT is an interlock solenoid locking switch designed for panel disconnect applications. This component features dual-pole, single-throw normally closed (DPST-NC x 2) circuitry with a 24VDC supply voltage and 240VAC switching capability. The device provides a holding force of 102kgf and is rated for 750mA AC operation. With IP67 ingress protection and operating temperature range of -10°C to 55°C, it is suitable for industrial control and safety interlock applications.

The D4GL-4DFG-A4-NPT 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-4DFG-A4-NPT

Omron Automation and SafetyIn Stock: 746D4GL-4DFG-A4-NPT Datasheet

Current PartRFQ

D4SL-N3DFG

Omron Automation and SafetyIn Stock: 1109D4SL-N3DFG Datasheet

SimilarRFQ

D4SL-N3DFG-N

Omron Automation and SafetyIn Stock: 747D4SL-N3DFG-N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-4DFG-A4-NPT is determined by equivalence in the following critical parameters:

• Circuit Configuration: DPST-NC x 2 (dual-pole, single-throw normally closed)
• Actuator Type: Panel Disconnect
• Termination Style: Screw Terminal
• Ingress Protection: IP67 minimum
• Operating Temperature Range: -10°C ~ 55°C minimum
• Solenoid Locking Function: Electromagnetic holding mechanism

The substitute parts D4SL-N3DFG and D4SL-N3DFG-N belong to the D4SL-N series and maintain functional equivalence through identical circuit configuration, actuator type, termination style, and environmental protection ratings. Both substitutes are active products with current manufacturing status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The D4SL-N3DFG and D4SL-N3DFG-N are functionally equivalent substitutes for the obsolete D4GL-4DFG-A4-NPT. Both substitute parts maintain the required DPST-NC x 2 circuit configuration, panel disconnect actuator type, screw terminal termination, and IP67 environmental protection rating.

The D4SL-N series substitutes offer enhanced specifications in holding force (133kgf versus 102kgf) and current capacity (1.5A AC versus 750mA AC), providing improved performance margins. Both substitutes carry active product status with current manufacturing support from Omron Automation and Safety, ensuring supply chain reliability and technical support availability.

Voltage and conduit thread specifications differ between the main part and substitutes. The D4GL-4DFG-A4-NPT operates at 24VDC supply with 240VAC switching capability and M20 conduit threading, while the D4SL-N series operates at 120VAC or 125VDC supply with 1/2" NPT conduit threading. System integration requirements must account for these electrical and mechanical interface differences.

Both substitute parts carry expanded regulatory approvals including CCC certification in addition to CE, cURus, and TUV certifications, meeting broader international compliance requirements.

Frequently Asked Questions (FAQ)

Q: What makes D4SL-N3DFG and D4SL-N3DFG-N suitable substitutes for the D4GL-4DFG-A4-NPT?

A: Both substitute parts maintain identical circuit configuration (DPST-NC x 2), actuator type (panel disconnect), termination style (screw terminal), and environmental protection rating (IP67). These parameters define functional equivalence for solenoid locking interlock switches. Both substitutes are active products with current manufacturing status, addressing the obsolescence of the original part.

Q: Are there differences in electrical specifications between the main part and substitutes?

A: Yes. The D4GL-4DFG-A4-NPT operates at 24VDC supply with 240VAC switching capability and 750mA AC current rating. The D4SL-N3DFG and D4SL-N3DFG-N operate at 120VAC or 125VDC supply with 1.5A AC and 220mA DC current ratings. System voltage and current requirements must be evaluated during substitution planning.

Q: Do the substitute parts have different mechanical interfaces?

A: Yes. The D4GL-4DFG-A4-NPT uses M20 conduit threading, while both D4SL-N substitutes use 1/2" NPT conduit threading. Mechanical mounting and conduit connection compatibility must be assessed for your specific installation.

Q: What is the holding force difference between the main part and substitutes?

A: The D4GL-4DFG-A4-NPT provides 102kgf holding force. Both D4SL-N3DFG and D4SL-N3DFG-N provide 133kgf holding force, representing a 31% increase in clamping capability. This enhanced performance may benefit applications requiring higher mechanical retention.

Q: Are the substitute parts certified to the same standards?

A: The D4GL-4DFG-A4-NPT carries CE, cULus, and TUV certifications. The D4SL-N3DFG and D4SL-N3DFG-N carry CCC, CE, cURus, and TUV certifications, providing expanded regulatory coverage including Chinese market compliance.

Q: What is the difference between D4SL-N3DFG and D4SL-N3DFG-N?

A: Both parts are functionally identical with the same electrical specifications, holding force, environmental protection, and certifications. The designation difference reflects packaging or configuration variants within the D4SL-N series. Consult Omron documentation for specific packaging or feature distinctions.

Q: Are both substitute parts currently available?

A: Yes. Both D4SL-N3DFG (1048 units) and D4SL-N3DFG-N (732 units) are classified as active products with current inventory in stock, ensuring supply availability for immediate procurement and deployment.