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

Part Overview

The Omron D4GL-1HFG-A is a 3PST interlock solenoid locking switch designed for panel disconnect applications with a 24VDC supply voltage and 240VAC rated switching capacity. This component features a screw terminal configuration, status indicator, and IP67 ingress protection suitable for industrial control environments.

The D4GL-1HFG-A is classified as obsolete. Locating equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement or new installations where this legacy component is specified.

Substiute Parts

D4GL-1HFG-A

Omron Automation and SafetyIn Stock: 1108D4GL-1HFG-A Datasheet

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D4SL-N4HFG-D

Omron Automation and SafetyIn Stock: 1023D4SL-N4HFG-D Datasheet

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D4SL-N4HFG-DN

Omron Automation and SafetyIn Stock: 926D4SL-N4HFG-DN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-1HFG-A is based on the following critical parameters that must align across parts:

Mandatory Matching Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Locking
• Circuit Configuration: 3PST-NC + DPST-NC
• Supply Voltage: 24VDC
• Actuator Type: Panel Disconnect
• Features: Status Indicator
• Operating Temperature Range: -10°C to 55°C
• Ingress Protection: IP67
• Approval Agencies: CE, TUV

Allowable Variations:

• Current Rating: The D4GL-1HFG-A operates at 750mA AC. Substitute parts with higher current ratings (1.5A AC) are acceptable as they provide equal or greater switching capacity.
• Voltage Rating: The D4GL-1HFG-A is rated for 240VAC. Substitute parts rated for 120VAC represent a reduced voltage capability and are not direct equivalents.
• Holding Force: The D4GL-1HFG-A provides 102kgf. Substitute parts with lower holding force (6kgf) do not meet the original specification and represent a significant functional reduction.
• Termination Style: The D4GL-1HFG-A uses screw terminals. Substitute parts may use connector termination, which represents a different interface requirement.
• Conduit Thread Size: The D4GL-1HFG-A uses PG14.6. Substitute parts using M20 represent a different mechanical interface.
• Product Status: The D4GL-1HFG-A is obsolete. Active substitute parts ensure ongoing availability.

The D4SL-N series parts listed below share the core functional parameters but exhibit variations in current rating, voltage rating, holding force, termination style, and conduit thread size. These variations must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4HFG-D (Screw Terminal Configuration)

This part maintains active product status and shares the screw terminal interface with the D4GL-1HFG-A. It carries CE, cURus, and TUV certifications, meeting the regulatory requirements of the original component. The primary differences are reduced holding force (6kgf versus 102kgf), lower voltage rating (120VAC versus 240VAC), and different conduit thread size (M20 versus PG14.6). These differences require application-level evaluation to determine suitability.

D4SL-N4HFG-DN (Connector Configuration)

This part also maintains active product status and carries equivalent regulatory certifications. It differs from the D4GL-1HFG-A in termination style (connector versus screw terminal), holding force (6kgf versus 102kgf), voltage rating (120VAC versus 240VAC), and conduit thread size (M20 versus PG14.6). The connector termination represents a different interface requirement that may necessitate wiring harness modifications.

Both D4SL-N series parts are manufactured by Omron and share the same circuit configuration, supply voltage, actuator type, and environmental specifications as the D4GL-1HFG-A. Selection between these options depends on termination interface requirements and whether the reduced holding force and voltage rating are acceptable for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the D4SL-N4HFG-D or D4SL-N4HFG-DN directly replace the D4GL-1HFG-A without modification?

A: Both D4SL-N parts share the same circuit configuration, supply voltage, and environmental specifications. However, the D4SL-N series has a significantly lower holding force (6kgf versus 102kgf) and lower voltage rating (120VAC versus 240VAC). Direct replacement is possible only if the application does not require the higher holding force or 240VAC switching capacity of the original part. Conduit thread size differences (M20 versus PG14.6) and termination style differences must also be addressed mechanically.

Q: What is the difference between D4SL-N4HFG-D and D4SL-N4HFG-DN?

A: The primary difference is termination style. The D4SL-N4HFG-D uses screw terminals, matching the interface of the D4GL-1HFG-A. The D4SL-N4HFG-DN uses a connector interface. All other electrical and mechanical specifications are identical between these two parts.

Q: Why does the D4SL-N series have lower holding force than the D4GL-1HFG-A?

A: The D4GL and D4SL series represent different product lines within Omron's solenoid locking switch portfolio. The D4GL-1HFG-A is designed for high-force applications (102kgf), while the D4SL-N series is designed for lower-force applications (6kgf). These are distinct product categories with different mechanical designs.

Q: Are the D4SL-N parts available in the same packaging as the D4GL-1HFG-A?

A: The D4SL-N4HFG-D and D4SL-N4HFG-DN are supplied in bulk packaging. The original D4GL-1HFG-A packaging specification was not provided in the available data. Packaging requirements should be confirmed with the supplier.

Q: What certifications do the substitute parts carry?

A: Both D4SL-N4HFG-D and D4SL-N4HFG-DN carry CCC, CE, cURus, and TUV certifications. The D4GL-1HFG-A carries CE, cULus, and TUV certifications. The D4SL-N series includes additional CCC certification and uses cURus instead of cULus.

Q: Can I use a D4SL-N part if my application requires 240VAC switching?

A: No. The D4SL-N series is rated for 120VAC maximum. The D4GL-1HFG-A is rated for 240VAC. Using a lower-rated part in a 240VAC application exceeds the component's electrical specification and is not acceptable.