Equivalent & Substitute Parts for D4GL-4HFA-A

Part Overview

The D4GL-4HFA-A is an interlock solenoid release manufactured by Omron Automation and Safety, designed for panel disconnect applications with 3PST-NC + DPST-NC circuit configuration. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new installations where the original part is no longer available.

Substiute Parts

D4GL-4HFA-A

Omron Automation and SafetyIn Stock: 914D4GL-4HFA-A Datasheet

Current PartRFQ

D4SL-N4HFA-D

Omron Automation and SafetyIn Stock: 884D4SL-N4HFA-D Datasheet

SimilarRFQ

D4SL-N4HFA-DN

Omron Automation and SafetyIn Stock: 960D4SL-N4HFA-DN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-4HFA-A is based on the following critical parameters that must align across parts:

Mandatory Matching Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Release
• Circuit Configuration: 3PST-NC + DPST-NC
• Actuator Type: Panel Disconnect
• Supply Voltage: 24VDC
• Conduit Thread Size: M20
• Operating Temperature Range: -10°C ~ 55°C
• Ingress Protection: IP67
• Termination Style compatibility

Allowable Variations:

• Current Rating: The D4GL-4HFA-A operates at 750mA AC; substitute parts may operate at higher current ratings (1.5A AC) while maintaining compatibility
• Voltage Rating: The D4GL-4HFA-A is rated for 240VAC; substitute parts rated for 120VAC or 125VDC represent different voltage classes but maintain the same circuit topology
• Holding Force: The D4GL-4HFA-A provides 102kgf; substitute parts with lower holding force (6kgf) represent a significant reduction and must be evaluated for application requirements
• Product Status: Active alternatives are preferred over obsolete parts for new designs and long-term availability

The D4SL-N series (D4SL-N4HFA-D and D4SL-N4HFA-DN) meets all mandatory matching parameters and represents the active product line equivalent to the obsolete D4GL-4HFA-A.

Parameter Comparison

Engineering Selection Recommendations

For D4GL-4HFA-A Replacement:

The D4SL-N4HFA-D and D4SL-N4HFA-DN are the active product line equivalents from Omron Automation and Safety. Both parts maintain the same circuit topology, supply voltage, mechanical form factor, and environmental ratings as the obsolete D4GL-4HFA-A.

D4SL-N4HFA-D (Screw Terminal): Select this variant when the original installation uses screw terminal connections. This part provides direct termination compatibility with the D4GL-4HFA-A.

D4SL-N4HFA-DN (Connector): Select this variant when connector-based termination is preferred or required by system design. This represents the modern connector-based approach in the D4SL-N series.

Critical Considerations:

The D4SL-N series operates at a maximum holding force of 6kgf compared to the D4GL-4HFA-A's 102kgf. This represents a significant reduction in holding force and must be evaluated against application requirements. If the original 102kgf holding force is essential to system operation, alternative manufacturers or higher-force variants must be investigated.

The D4SL-N series supports both AC and DC current ratings (1.5A AC, 220mA DC) and operates at 120VAC or 125VDC, whereas the D4GL-4HFA-A is rated for 240VAC and 750mA AC only. Verify that the lower voltage and current ratings are compatible with the intended application.

Both substitute parts carry expanded approval certifications (CCC, CE, cURus, TUV) compared to the original part, providing broader regulatory compliance for international applications.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4HFA-D and D4SL-N4HFA-DN be used interchangeably?

A: Both parts share identical electrical specifications and circuit configuration. The primary difference is termination style: D4SL-N4HFA-D uses screw terminals while D4SL-N4HFA-DN uses connectors. Selection depends on the wiring method required by your installation. Mechanical mounting and environmental ratings are identical.

Q: Why is the holding force significantly lower in the D4SL-N series?

A: The D4SL-N series represents a different product generation with different mechanical design. The 6kgf holding force is a specification of this series. If 102kgf holding force is required, the D4GL-4HFA-A cannot be directly substituted and alternative solutions must be explored.

Q: Are the D4SL-N parts compatible with 240VAC systems?

A: No. The D4SL-N series is rated for 120VAC or 125VDC maximum. The D4GL-4HFA-A is rated for 240VAC. Do not apply 240VAC to D4SL-N parts. Verify your system voltage before selection.

Q: What is the difference between the approval agencies listed?

A: The D4GL-4HFA-A carries CE, cULus, and TUV certifications. The D4SL-N series carries CCC, CE, cURus, and TUV certifications. CCC is China Compulsory Certification; cURus is the Canadian equivalent to UL certification. The D4SL-N series provides broader international regulatory coverage.

Q: Can I use D4SL-N4HFA-DN if my system currently uses screw terminals?

A: Connector-based termination requires rewiring or adapter solutions. If screw terminal compatibility is essential, select D4SL-N4HFA-D. If system redesign permits connector installation, D4SL-N4HFA-DN is acceptable.

Q: Is the D4GL-4HFA-A still available for purchase?

A: The D4GL-4HFA-A is classified as obsolete. For new installations or long-term system support, transition to the active D4SL-N series is recommended. Existing inventory may be available through authorized distributors, but supply is not guaranteed.