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

Part Overview

The Omron D4GL-1DFG-A4 is an interlock solenoid locking switch classified as a DPST-NC (Double Pole Single Throw - Normally Closed) device designed for panel disconnect applications. This component operates at 24VDC supply voltage with a 240VAC current rating of 750mA and provides a holding force of 102kgf. The D4GL-1DFG-A4 has reached obsolete product status, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

D4GL-1DFG-A4

Omron Automation and SafetyIn Stock: 1134D4GL-1DFG-A4 Datasheet

Current PartRFQ

D4SL-N4DFG

Omron Automation and SafetyIn Stock: 1107D4SL-N4DFG Datasheet

SimilarRFQ

D4SL-N4DFG-N

Omron Automation and SafetyIn Stock: 866D4SL-N4DFG-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete D4GL-1DFG-A4 is based on the following critical parameters that must align across equivalent parts:

Mandatory Compatibility Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Locking
• Circuit Configuration: DPST-NC x 2
• Actuator Type: Panel Disconnect
• Operating Temperature Range: -10°C to 55°C
• Ingress Protection: IP67 - Dust Tight, Waterproof

Allowable Variation Parameters:

• Current Rating (AC/DC): May differ based on application requirements
• Voltage Rating: May differ based on application requirements
• Supply Voltage: May differ based on application requirements
• Holding Force: May differ based on application requirements
• Termination Style: May differ (Screw Terminal vs. Connector)
• Conduit Thread Size: May differ based on installation requirements

The D4SL-N series represents the active product line replacement for the obsolete D4GL series. Both D4SL-N4DFG and D4SL-N4DFG-N maintain the core functional parameters while offering active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4DFG (Screw Terminal Configuration): Select this substitute when the original screw terminal termination style is required for direct integration into existing wiring harnesses or terminal block assemblies. This part maintains active product status with current manufacturing support and expanded approval certifications (CCC addition). The screw terminal configuration ensures compatibility with legacy installation practices.

D4SL-N4DFG-N (Connector Configuration): Select this substitute when connector-based termination is preferred for modular assembly or when rapid disconnect capability is required. This variant offers identical electrical and functional specifications to the D4SL-N4DFG with the termination style as the primary differentiator. Active product status ensures long-term availability and supply chain stability.

Critical Design Considerations: Both substitute parts operate at lower voltage ratings (120VAC/125VDC) compared to the original D4GL-1DFG-A4 (240VAC). System voltage requirements must be evaluated during substitution planning. The D4SL-N series provides higher AC current capacity (1.5A versus 750mA) and DC current capability (220mA), offering improved performance margins in most applications. Holding force reduction from 102kgf to 6kgf requires mechanical load verification for the specific application.

Frequently Asked Questions (FAQ)

Q: Why is the D4GL-1DFG-A4 no longer available? A: The D4GL-1DFG-A4 has reached obsolete product status. Omron has transitioned this product line to the active D4SL-N series, which provides enhanced features and current manufacturing support.

Q: What is the primary difference between D4SL-N4DFG and D4SL-N4DFG-N? A: The termination style differs. D4SL-N4DFG uses screw terminals for direct wire connection, while D4SL-N4DFG-N uses a connector interface for modular assembly. All other electrical and functional parameters are identical.

Q: Can I directly replace D4GL-1DFG-A4 with D4SL-N4DFG or D4SL-N4DFG-N? A: Direct replacement requires verification of system voltage compatibility. The D4GL-1DFG-A4 operates at 240VAC, while both D4SL-N variants operate at 120VAC/125VDC. Mechanical load requirements must also be confirmed, as holding force differs between the original and substitute parts.

Q: What certifications do the substitute parts carry? A: Both D4SL-N4DFG and D4SL-N4DFG-N carry CCC, CE, cURus, and TUV approvals, providing broader regulatory coverage than the original D4GL-1DFG-A4 (CE, cULus, TUV).

Q: Are there inventory considerations for these substitutes? A: D4SL-N4DFG maintains 1055 pieces in stock, while D4SL-N4DFG-N maintains 767 pieces in stock. Both are actively manufactured and available through standard procurement channels.

Q: How do the electrical specifications compare? A: The D4SL-N series provides 1.5A AC current capacity (versus 750mA in the original) and adds 220mA DC capability. Voltage ratings are 120VAC/125VDC for the D4SL-N series compared to 240VAC for the D4GL-1DFG-A4. Application voltage requirements must be verified before substitution.