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

Part Overview

The Omron D4GL-1BFG-A is an interlock solenoid locking switch classified as a DPST (Double Pole Single Throw) device with dual circuit configuration (DPST-NO/NC + DPST-NC). This component functions as a panel disconnect actuator with screw terminal termination and integrated status indicator. The D4GL-1BFG-A is designated as obsolete, necessitating identification of functionally equivalent active alternatives from the same manufacturer to maintain system compatibility and ensure continued supply chain availability.

Substiute Parts

D4GL-1BFG-A

Omron Automation and SafetyIn Stock: 1142D4GL-1BFG-A 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

The D4GL-1BFG-A has been superseded by the D4SL-N series from Omron Automation and Safety. Substitution eligibility is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Solenoid locking switch type classification
• DPST circuit configuration (DPST-NO/NC + DPST-NC)
• Panel disconnect actuator function
• Screw terminal or connector termination compatibility
• IP67 ingress protection rating
• Operating temperature range alignment (-10°C to 55°C)
• Active product status with current manufacturing support

Substitute Parts Identified:

• D4SL-N4BFG (Screw Terminal variant)
• D4SL-N4BFG-N (Connector variant)

Both D4SL-N series parts maintain functional equivalence in circuit topology, environmental protection, and temperature operating range. Differences in current rating, voltage specification, holding force, and conduit thread size reflect design evolution within the D4SL-N platform and do not preclude substitution where electrical load requirements permit.

Parameter Comparison

Engineering Selection Recommendations

For D4GL-1BFG-A Replacement:

Select D4SL-N4BFG when screw terminal termination is required for direct integration into existing wiring harnesses or terminal block configurations. This variant maintains electrical compatibility with the original part's circuit topology and environmental protection rating.

Select D4SL-N4BFG-N when connector-based termination is preferred for modular assembly or when connector standardization is mandated by system design specifications. The connector variant provides identical electrical performance and environmental protection.

Electrical Load Considerations:

The D4SL-N series exhibits reduced holding force (6kgf versus 102kgf) and operates at lower voltage ratings (120VAC/125VDC versus 240VAC/24VDC). Verify that application load requirements do not exceed the D4SL-N holding force specification. Confirm that system supply voltage aligns with D4SL-N voltage ratings before implementation.

Compliance and Certification:

Both D4SL-N variants maintain CE, TUV, and expanded regulatory approval (CCC, cURus) compared to the original D4GL-1BFG-A. This expanded certification scope supports deployment in additional regulatory jurisdictions.

Mechanical Interface:

Conduit thread size differs between the original part (PG14.6) and substitute parts (M20). Mechanical mounting interfaces and conduit adapters must be evaluated for compatibility with the M20 thread specification.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4BFG and D4SL-N4BFG-N be used interchangeably?

A: Both parts are electrically and functionally equivalent. The primary difference is termination style: D4SL-N4BFG uses screw terminals, while D4SL-N4BFG-N uses connectors. Selection depends on the wiring and assembly method required by your application. Mechanical mounting and electrical performance are identical.

Q: What is the impact of reduced holding force in the D4SL-N series?

A: The D4SL-N series provides 6kgf holding force compared to 102kgf in the D4GL-1BFG-A. This reduction is significant and must be evaluated against application requirements. If your system requires the higher holding force of the original part, alternative solutions outside the D4SL-N series may be necessary.

Q: Are the voltage ratings compatible with my existing system?

A: The D4GL-1BFG-A operates at 240VAC with 24VDC supply. The D4SL-N series operates at 120VAC/125VDC. Confirm that your system supply voltage matches the D4SL-N specification before substitution. If your system requires 240VAC operation, these parts are not suitable replacements.

Q: What is the difference in conduit thread size, and does it affect installation?

A: The D4GL-1BFG-A uses PG14.6 conduit threads, while D4SL-N variants use M20. This difference requires mechanical adapter evaluation or conduit fitting replacement. Verify that your installation infrastructure supports M20 thread connections or plan for mechanical adaptation.

Q: Are regulatory certifications equivalent between the original and substitute parts?

A: The D4SL-N series includes expanded certifications (CCC, CE, cURus, TUV) compared to the D4GL-1BFG-A (CE, cULus, TUV). The D4SL-N variants meet or exceed the original certification scope, supporting deployment in additional regulatory markets.

Q: What is the current rating difference, and does it matter?

A: The D4GL-1BFG-A is rated for 750mA AC. The D4SL-N series is rated for 1.5A AC and 220mA DC. The D4SL-N series supports higher AC current capacity, which is advantageous for most applications. Verify that your application current requirements do not exceed 1.5A AC or 220mA DC.