Omron D4GL-2HFG-A4 Interlock Solenoid Locking Switch - Equivalent & Substitute Parts

Part Overview

The Omron D4GL-2HFG-A4 is a solenoid locking interlock switch designed for panel disconnect applications with 3PST-NC + DPST-NC circuit configuration. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations. The D4GL series has been superseded by the D4SL-N series, which maintains functional compatibility while offering extended product lifecycle support.

Substiute Parts

D4GL-2HFG-A4

Omron Automation and SafetyIn Stock: 817D4GL-2HFG-A4 Datasheet

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D4SL-N2HFG-D4

Omron Automation and SafetyIn Stock: 913D4SL-N2HFG-D4 Datasheet

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D4SL-N2HFG-D4N

Omron Automation and SafetyIn Stock: 742D4SL-N2HFG-D4N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-2HFG-A4 is based on the following critical parameters that must remain consistent:

• Circuit configuration: 3PST-NC + DPST-NC
• Actuator type: Panel Disconnect
• Voltage supply: 24VDC
• Conduit thread size: G1/2
• Operating temperature range: -10°C ~ 55°C
• Ingress protection: IP67
• Status indicator feature
• Approval agencies: CE, cULus, TUV

The D4SL-N series satisfies these core functional requirements. Two variants are identified as direct substitutes: D4SL-N2HFG-D4 (Screw Terminal) and D4SL-N2HFG-D4N (Connector Termination). Both maintain identical circuit configuration, actuator type, supply voltage, and environmental specifications. The primary differences are termination style and current/voltage handling capabilities, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both D4SL-N2HFG-D4 and D4SL-N2HFG-D4N are active products from Omron Automation and Safety, providing long-term availability and support compared to the obsolete D4GL-2HFG-A4.

D4SL-N2HFG-D4 (Screw Terminal): Select this variant when the original installation uses screw terminal connections. This part maintains the same termination style as the D4GL-2HFG-A4, simplifying retrofit applications. Current rating of 1.5A AC exceeds the original 750mA specification, providing operational margin.

D4SL-N2HFG-D4N (Connector Termination): Select this variant for new installations or when connector-based termination is preferred for improved connection reliability and faster assembly. Electrical specifications are identical to the D4SL-N2HFG-D4.

Both substitutes carry expanded approval certifications (CCC added) compared to the original part, supporting broader regulatory compliance requirements. The D4SL-N series holding force of 6kgf differs significantly from the D4GL-2HFG-A4 specification of 102kgf; applications requiring the original holding force specification cannot use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N2HFG-D4 and D4SL-N2HFG-D4N be used interchangeably?

A: Both parts share identical electrical specifications, circuit configuration, voltage supply, and environmental ratings. The only difference is termination style: screw terminal versus connector. Selection depends on the installation method and connection infrastructure of the target application.

Q: What is the primary difference between the D4GL-2HFG-A4 and D4SL-N series?

A: The D4SL-N series is the active product line successor to the obsolete D4GL series. Both maintain the same circuit configuration (3PST-NC + DPST-NC), actuator type, and environmental specifications. The D4SL-N series offers higher AC current rating (1.5A versus 750mA) and expanded regulatory certifications. The holding force differs significantly (6kgf versus 102kgf).

Q: Is the D4SL-N2HFG-D4 suitable for applications requiring 240VAC operation?

A: No. The D4SL-N2HFG-D4 is rated for 120VAC maximum, while the original D4GL-2HFG-A4 is rated for 240VAC. Applications requiring 240VAC operation cannot use the D4SL-N substitute without circuit redesign.

Q: What certifications do the substitute parts carry?

A: Both D4SL-N2HFG-D4 and D4SL-N2HFG-D4N carry CCC, CE, cURus, and TUV approvals. The original D4GL-2HFG-A4 carries CE, cULus, and TUV approvals. The D4SL-N variants provide additional CCC certification and cURus (versus cULus).

Q: Are there inventory considerations for selecting between the two D4SL-N variants?

A: D4SL-N2HFG-D4 (Screw Terminal) has 895 pieces in stock. D4SL-N2HFG-D4N (Connector) has 726 pieces in stock. Both are available in bulk packaging.