Omron D4GL-1BFG-A4 Interlock Solenoid Locking Switch - Equivalent & Substitute Parts

Part Overview

The Omron D4GL-1BFG-A4 is an interlock solenoid locking switch with dual-pole, single-throw (DPST) configuration designed for panel disconnect applications. This component features a 24VDC supply voltage, 240VAC circuit rating, and 102kgf holding force. The product is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for existing installations and new designs requiring similar performance characteristics.

Substiute Parts

D4GL-1BFG-A4

Omron Automation and SafetyIn Stock: 1033D4GL-1BFG-A4 Datasheet

Current PartRFQ

D4SL-N4BFG

Omron Automation and SafetyIn Stock: 976D4SL-N4BFG Datasheet

SimilarRFQ

D4SL-N4BFG-N

Omron Automation and SafetyIn Stock: 985D4SL-N4BFG-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-1BFG-A4 is based on the following critical parameters:

Functional Equivalence Criteria:

• Solenoid locking switch type with panel disconnect actuator
• DPST circuit configuration (DPST-NO/NC + DPST-NC)
• IP67 ingress protection rating
• Operating temperature range compatibility (-10°C to 55°C)
• Screw terminal or connector termination compatibility
• Regulatory approvals (CE, cULus, TUV)

Identified Substitutes: The D4SL-N4BFG and D4SL-N4BFG-N from the Omron D4SL-N series are active products that maintain the same circuit configuration, actuator type, ingress protection, and operating temperature range. Both substitutes are currently in active production status with full regulatory compliance.

Parameter Variations: Substitutes differ in current and voltage ratings, holding force, conduit thread size, and termination style. These differences require engineering evaluation based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4BFG (Screw Terminal Configuration): This substitute maintains screw terminal termination identical to the main part. It is an active product with current regulatory compliance including CCC, CE, cURus, and TUV certifications. Selection is appropriate for applications where screw terminal connection is required and where the reduced holding force (6kgf versus 102kgf) and lower voltage ratings (120VAC/125VDC versus 240VAC) are compatible with system requirements.

D4SL-N4BFG-N (Connector Configuration): This substitute provides connector-based termination and is an active product with equivalent regulatory compliance. It is suitable for applications requiring connector-type connections and where the same electrical and mechanical parameter constraints as the screw terminal variant apply.

Compatibility Considerations: Both substitutes operate within the same temperature range and maintain IP67 ingress protection. The primary engineering constraints for substitution are the reduced holding force and different voltage/current ratings. Applications requiring the original 102kgf holding force or 240VAC operation may not be compatible with these substitutes.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4BFG or D4SL-N4BFG-N directly replace the D4GL-1BFG-A4 in existing installations?

A: Direct replacement requires verification that the application can operate with the substitute's reduced holding force (6kgf versus 102kgf) and lower voltage ratings (120VAC/125VDC versus 240VAC). Mechanical mounting and electrical circuit compatibility must be confirmed based on specific installation requirements.

Q: What is the primary difference between D4SL-N4BFG and D4SL-N4BFG-N?

A: The D4SL-N4BFG uses screw terminal termination, while the D4SL-N4BFG-N uses connector termination. Both maintain identical electrical specifications and regulatory approvals. Selection depends on the connection method required by the application.

Q: Are the substitutes compatible with the original 24VDC supply voltage?

A: The substitutes do not specify a supply voltage parameter in the provided data. The voltage ratings listed (120VAC/125VDC) refer to circuit operation, not supply voltage. Application compatibility requires confirmation of the actual supply voltage requirements for the D4SL-N series.

Q: Do the substitutes maintain the same ingress protection rating?

A: Yes, both D4SL-N4BFG and D4SL-N4BFG-N maintain IP67 ingress protection (dust tight, waterproof), identical to the original D4GL-1BFG-A4.

Q: What regulatory approvals do the substitutes carry?

A: Both substitutes carry CCC, CE, cURus, and TUV approvals. The original part carried CE, cULus, and TUV approvals. The substitutes include additional CCC certification and cURus instead of cULus.

Q: Are there packaging differences between the substitutes and the original part?

A: The original D4GL-1BFG-A4 packaging is listed as "-" (not specified). Both substitutes are supplied in bulk packaging. Packaging requirements for specific applications should be confirmed with the supplier.