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

Part Overview

The Omron D4GL-4BFA-A is an interlock solenoid release switch designed for panel disconnect applications with dual-pole switching capability. This component features a 24VDC supply voltage, 240VAC switching rating at 750mA, and IP67 ingress protection suitable for industrial control environments. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain system functionality and ensure continued component availability for maintenance and new installations.

Substiute Parts

D4GL-4BFA-A

Omron Automation and SafetyIn Stock: 1228D4GL-4BFA-A Datasheet

Current PartRFQ

D4SL-N4BFA

Omron Automation and SafetyIn Stock: 1113D4SL-N4BFA Datasheet

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D4SL-N4BFA-N

Omron Automation and SafetyIn Stock: 1008D4SL-N4BFA-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete D4GL-4BFA-A is based on the following critical parameters that define functional equivalence:

Preserved Parameters (Must Match or Exceed):

• Actuator Type: Panel Disconnect
• Circuit Configuration: DPST-NO/NC + DPST-NC
• Conduit Thread Size: M20
• Operating Temperature Range: -10°C ~ 55°C
• Ingress Protection: IP67
• Manufacturer: Omron Automation and Safety

Allowable Parameter Variations:

• Voltage Supply: D4GL-4BFA-A operates at 24VDC; substitute parts operate at different supply voltages but maintain equivalent switching functionality
• Current Rating: Substitute parts support different current ratings (1.5A AC, 220mA DC) compared to the original 750mA AC specification
• Holding Force: Substitute parts provide reduced holding force (6kgf vs. 102kgf), reflecting design evolution in the D4SL-N series
• Termination Style: Variations between Screw Terminal and Connector terminations are acceptable based on installation requirements
• Product Status: Active alternatives replace the obsolete original

The D4SL-N4BFA and D4SL-N4BFA-N represent the active product line evolution within Omron's interlock solenoid release portfolio, maintaining core functional characteristics while offering updated electrical specifications and connector options.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4BFA (Screw Terminal Configuration): Select this substitute when the original screw terminal termination style is required for direct installation compatibility. This part maintains the same M20 conduit thread interface and panel disconnect actuator type. Product status is active with current manufacturing support. Regulatory compliance includes CCC, CE, cURus, and TUV certifications, providing broader international approval coverage than the original D4GL-4BFA-A.

D4SL-N4BFA-N (Connector Configuration): Select this substitute when connector-based termination is preferred or when system architecture requires quick-disconnect capability. Electrical specifications and mechanical dimensions remain identical to the D4SL-N4BFA variant. Active product status ensures long-term availability and supply chain stability. Identical regulatory certifications apply.

Voltage and Current Considerations: Both substitute parts operate at 120VAC/125VDC switching ratings with 1.5A AC and 220mA DC current capacity. The original D4GL-4BFA-A specified 240VAC at 750mA AC. System design must accommodate these electrical parameter differences. The D4SL-N series represents the current Omron product generation for this functional category.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4BFA or D4SL-N4BFA-N directly replace D4GL-4BFA-A without circuit modification?

A: Both substitute parts maintain identical circuit configuration (DPST-NO/NC + DPST-NC), actuator type (Panel Disconnect), and mechanical interface (M20 conduit thread). However, electrical specifications differ: the original operates at 240VAC/750mA, while substitutes operate at 120VAC/125VDC with 1.5A AC or 220mA DC ratings. Circuit voltage and current parameters must be verified for compatibility with the target application before installation.

Q: What is the difference between D4SL-N4BFA and D4SL-N4BFA-N?

A: The primary difference is termination style. D4SL-N4BFA uses screw terminals for direct wire connection, while D4SL-N4BFA-N uses a connector interface for quick-disconnect capability. All other electrical and mechanical specifications are identical. Selection depends on installation methodology and system architecture requirements.

Q: Why does the substitute part have lower holding force (6kgf vs. 102kgf)?

A: The D4SL-N series represents a newer product generation with different mechanical design specifications. The reduced holding force reflects engineering optimization in the current product line. Application requirements must be evaluated to determine if the 6kgf holding force is sufficient for the intended use case.

Q: Are the substitute parts certified for the same regulatory standards?

A: The substitute parts carry CCC, CE, cURus, and TUV certifications, providing broader approval coverage than the original D4GL-4BFA-A (CE, cULus, TUV). Both substitute parts meet or exceed the regulatory requirements of the original component.

Q: What is the inventory status of these substitute parts?

A: D4SL-N4BFA has 1033 pieces in stock; D4SL-N4BFA-N has 918 pieces in stock. Both are classified as active products with current manufacturing support, ensuring continued availability for future orders.

Q: Can I use either substitute part interchangeably in my application?

A: Interchangeability depends on your specific installation requirements. If screw terminal connections are required, use D4SL-N4BFA. If connector-based termination is preferred, use D4SL-N4BFA-N. Electrical parameters (voltage and current ratings) must be verified against your circuit design in both cases.