Omron D4GL-1DFA-A4 Interlock Solenoid Release: Equivalent & Substitute Parts

Part Overview

The Omron D4GL-1DFA-A4 is a DPST interlock solenoid release switch designed for panel disconnect applications. This component operates at 240VAC with 24VDC supply voltage and provides a holding force of 102kgf. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

D4GL-1DFA-A4

Omron Automation and SafetyIn Stock: 894D4GL-1DFA-A4 Datasheet

Current PartRFQ

D4SL-N4DFA

Omron Automation and SafetyIn Stock: 908D4SL-N4DFA Datasheet

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D4SL-N4DFA-N

Omron Automation and SafetyIn Stock: 1152D4SL-N4DFA-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D4GL-1DFA-A4 are identified from the Omron D4SL-N series based on the following substitution criteria:

Matching Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Release
• Circuit Configuration: DPST-NC x 2
• Actuator Type: Panel Disconnect
• Operating Temperature Range: -10°C to 55°C
• Ingress Protection: IP67
• MSL Rating: 1 (Unlimited)

Allowable Variations:

• Voltage Rating: D4SL-N series operates at 120VAC/125VDC (different from D4GL-1DFA-A4 at 240VAC/24VDC)
• Current Rating: D4SL-N series rated at 1.5A (AC) / 220mA (DC) (different from D4GL-1DFA-A4 at 750mA AC)
• Holding Force: D4SL-N series provides 6kgf (different from D4GL-1DFA-A4 at 102kgf)
• Conduit Thread Size: D4SL-N series uses M20 (different from D4GL-1DFA-A4 at PG14.6)
• Termination Style: Available in both Screw Terminal and Connector options

The D4SL-N series represents the active product line successor with equivalent functional architecture but different electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

D4GL-1DFA-A4 (Obsolete): This part is no longer in active production. Continued use is limited to existing inventory or legacy system maintenance.

D4SL-N4DFA (Active): This substitute provides equivalent solenoid release functionality with screw terminal termination. It carries active product status with expanded regulatory approvals (CCC, CE, cURus, TUV). Selection of this variant is appropriate for applications where screw terminal connection is required and electrical specifications (120VAC/125VDC, 1.5A AC, 6kgf holding force) are compatible with system requirements.

D4SL-N4DFA-N (Active): This substitute provides equivalent solenoid release functionality with connector-based termination. It carries active product status with expanded regulatory approvals (CCC, CE, cURus, TUV). Selection of this variant is appropriate for applications where connector-based connection is required and electrical specifications (120VAC/125VDC, 1.5A AC, 6kgf holding force) are compatible with system requirements.

Both D4SL-N series alternatives are manufactured by Omron Automation and Safety and maintain the same circuit configuration, actuator type, operating temperature range, and ingress protection rating as the obsolete D4GL-1DFA-A4.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4DFA or D4SL-N4DFA-N directly replace D4GL-1DFA-A4 in existing installations?

A: Direct replacement requires verification of electrical compatibility. The D4SL-N series operates at 120VAC/125VDC with 1.5A AC current rating and 6kgf holding force, whereas the D4GL-1DFA-A4 operates at 240VAC with 750mA AC current rating and 102kgf holding force. Mechanical interface differences include conduit thread size (M20 vs. PG14.6). Substitution is valid only when system design accommodates these parameter differences.

Q: What is the primary difference between D4SL-N4DFA and D4SL-N4DFA-N?

A: The primary difference is termination style. D4SL-N4DFA uses screw terminal connection, while D4SL-N4DFA-N uses connector-based termination. Both parts are electrically and functionally equivalent. Selection depends on the connection method required by the application.

Q: Are both D4SL-N variants suitable for the same applications?

A: Both variants share identical electrical specifications, circuit configuration, and environmental ratings. Selection between them is determined by termination style compatibility with the installation. Screw terminal (D4SL-N4DFA) is appropriate for direct wire connection, while connector termination (D4SL-N4DFA-N) is appropriate for modular connection systems.

Q: What regulatory approvals apply to the substitute parts?

A: D4SL-N4DFA and D4SL-N4DFA-N carry CCC, CE, cURus, and TUV approvals. The original D4GL-1DFA-A4 carries CE, cULus, and TUV approvals. The D4SL-N series provides expanded compliance coverage.

Q: Is the holding force difference between D4GL-1DFA-A4 (102kgf) and D4SL-N series (6kgf) significant for substitution?

A: Yes. The holding force difference is substantial and must be evaluated against application requirements. The D4SL-N series provides significantly lower holding force. Substitution is valid only when the application can operate within the 6kgf holding force specification.