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

Part Overview

The Omron D4GL-4AFG-A is an interlock solenoid locking switch classified as DPST (Double Pole Single Throw) with dual NO/NC circuits. This component functions as a panel disconnect actuator with screw terminal termination, designed for industrial safety interlocking applications. The D4GL-4AFG-A is currently listed as obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

D4GL-4AFG-A

Omron Automation and SafetyIn Stock: 794D4GL-4AFG-A Datasheet

Current PartRFQ

D4SL-N4AFG

Omron Automation and SafetyIn Stock: 2247D4SL-N4AFG Datasheet

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D4SL-N4AFG-N

Omron Automation and SafetyIn Stock: 789D4SL-N4AFG-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete D4GL-4AFG-A is based on the following critical parameters that must align across equivalent models:

Mandatory Alignment Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Locking
• Circuit Configuration: DPST-NO/NC (DB/DM) x 2
• Actuator Type: Panel Disconnect
• Conduit Thread Size: M20
• Ingress Protection Rating: IP67
• Operating Temperature Range: -10°C to 55°C

Allowable Variations:

• Product Status: Active (required for current availability)
• Current Rating: D4SL-N series supports 1.5A (AC) and 220mA (DC), exceeding the D4GL-4AFG-A requirement of 750mA (AC)
• Voltage Rating: D4SL-N series supports 120VAC and 125VDC, differing from the original 240VAC and 24VDC supply
• Holding Force: D4SL-N series provides 6kgf, lower than the original 102kgf
• Termination Style: Available in both Screw Terminal and Connector options
• Approval Agencies: D4SL-N series includes CCC, CE, cURus, and TUV certifications

The D4SL-N series represents the active product line continuation within Omron's interlock solenoid locking portfolio, maintaining core functional and mechanical compatibility while offering enhanced electrical specifications and modern certifications.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4AFG (Screw Terminal Configuration): This variant maintains screw terminal termination identical to the original D4GL-4AFG-A, providing direct wiring compatibility in existing installations. The D4SL-N4AFG is an active product with current manufacturing status, ensuring long-term availability and supply chain stability. It carries expanded regulatory approvals including CCC certification in addition to CE, cURus, and TUV certifications, meeting broader international compliance requirements.

D4SL-N4AFG-N (Connector Configuration): This variant substitutes the screw terminal with connector termination, requiring interface adaptation in the installation. The connector configuration may offer advantages in applications requiring frequent connection and disconnection cycles. Like the D4SL-N4AFG, this model is active and carries the same expanded certification portfolio.

Selection Basis: Both D4SL-N series models satisfy the core functional requirements: DPST-NO/NC dual circuit configuration, Panel Disconnect actuator type, M20 conduit thread compatibility, IP67 environmental protection, and identical operating temperature range. The choice between D4SL-N4AFG and D4SL-N4AFG-N depends solely on termination interface requirements within the target application. For direct replacement in existing D4GL-4AFG-A installations, D4SL-N4AFG is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N series switches directly replace the D4GL-4AFG-A in existing installations?

A: Functional replacement is possible due to matching circuit configuration (DPST-NO/NC x 2), actuator type (Panel Disconnect), mechanical interface (M20 conduit thread), and environmental rating (IP67). However, electrical parameter differences exist: D4SL-N series operates at 120VAC/125VDC versus the original 240VAC/24VDC supply voltage, and provides 6kgf holding force compared to the original 102kgf. Application-specific validation is required to confirm these parameter differences are acceptable for the intended use.

Q: What is the difference between D4SL-N4AFG and D4SL-N4AFG-N?

A: The primary difference is termination style. D4SL-N4AFG uses screw terminal connections, while D4SL-N4AFG-N uses connector termination. Both models share identical electrical specifications, mechanical dimensions, and environmental ratings. Selection depends on the wiring interface requirements of the installation.

Q: Why does the D4SL-N series have lower holding force than the D4GL-4AFG-A?

A: The D4SL-N series provides 6kgf holding force compared to the D4GL-4AFG-A's 102kgf. This represents a design difference between the obsolete D4GL series and the current D4SL-N series. Application requirements must be evaluated to determine if the reduced holding force is acceptable for the specific interlock function.

Q: Are the D4SL-N series switches currently available?

A: Yes. Both D4SL-N4AFG and D4SL-N4AFG-N are listed as active products with current inventory availability, ensuring reliable supply for new installations and replacements.

Q: What certifications do the D4SL-N series switches carry?

A: D4SL-N series switches carry CCC, CE, cURus, and TUV certifications, providing broader international regulatory compliance compared to the original D4GL-4AFG-A certifications (CE, cULus, TUV).