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

Part Overview

The Omron D4GL-1FFA-A4 is a 3PST interlock solenoid release switch designed for panel disconnect applications with a 24VDC supply voltage and 240VAC load rating. This component is classified as obsolete, making identification of active equivalent parts essential for system maintenance and new installations. The D4GL series has been superseded by the D4SL-N series, which maintains functional compatibility while offering enhanced electrical ratings and active product support.

Substiute Parts

D4GL-1FFA-A4

Omron Automation and SafetyIn Stock: 888D4GL-1FFA-A4 Datasheet

Current PartRFQ

D4SL-N4FFA-D4

Omron Automation and SafetyIn Stock: 937D4SL-N4FFA-D4 Datasheet

SimilarRFQ

D4SL-N4FFA-D4N

Omron Automation and SafetyIn Stock: 971D4SL-N4FFA-D4N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4GL-1FFA-A4 is determined by the following critical parameters:

Functional Equivalence Criteria:

• Circuit configuration: 3PST-2NC/1NO + DPST-NC topology
• Actuator type: Panel Disconnect
• Ingress protection: IP67 minimum
• Operating temperature range: -10°C to 55°C minimum
• Supply voltage: 24VDC compatibility
• Status indicator feature presence

Electrical Compatibility Considerations:

• Load voltage rating must support 240VAC operation
• Current capacity must accommodate 750mA AC minimum
• Holding force must meet or exceed application requirements

The D4SL-N series (D4SL-N4FFA-D4 and D4SL-N4FFA-D4N) satisfies these criteria as active product alternatives. Both substitute parts maintain identical circuit topology, actuator type, ingress protection, operating temperature range, and supply voltage compatibility. The D4SL-N series provides enhanced electrical ratings (1.5A AC, 220mA DC) and broader voltage support (120VAC, 125VDC), ensuring compatibility with the original D4GL-1FFA-A4 application parameters.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4FFA-D4 Selection: This part is recommended for applications requiring screw terminal connectivity matching the original D4GL-1FFA-A4 termination style. The D4SL-N4FFA-D4 maintains active product status with full manufacturer support and carries expanded regulatory approvals (CCC, CE, cURus, TUV). Enhanced electrical ratings (1.5A AC versus 750mA AC) provide operational margin for the specified 240VAC load application. The M20 conduit thread size requires mechanical interface verification against the original PG14.6 specification.

D4SL-N4FFA-D4N Selection: This part is recommended for applications where connector-based termination is acceptable or preferred. The D4SL-N4FFA-D4N explicitly specifies 24VDC supply voltage compatibility, matching the original part requirement. Connector termination eliminates screw terminal maintenance considerations. This variant carries identical regulatory approvals and electrical ratings as the D4SL-N4FFA-D4. The M20 conduit thread size requires mechanical interface verification.

Mechanical Interface Consideration: Both substitute parts feature M20 conduit thread size versus the original PG14.6 specification. Installation requires mechanical adapter verification or panel modification assessment.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4FFA-D4 or D4SL-N4FFA-D4N directly replace D4GL-1FFA-A4 without modification?

A: Both D4SL-N series parts maintain identical circuit topology (3PST-2NC/1NO + DPST-NC), actuator type (Panel Disconnect), ingress protection (IP67), operating temperature range (-10°C to 55°C), and supply voltage (24VDC for D4SL-N4FFA-D4N; not specified for D4SL-N4FFA-D4). Electrical compatibility is confirmed: both substitute parts exceed the original 750mA AC requirement with 1.5A AC ratings. Mechanical interface modification is required due to conduit thread size change from PG14.6 to M20.

Q: What is the difference between D4SL-N4FFA-D4 and D4SL-N4FFA-D4N?

A: The primary difference is termination style: D4SL-N4FFA-D4 uses screw terminals (matching the original D4GL-1FFA-A4), while D4SL-N4FFA-D4N uses connector termination. D4SL-N4FFA-D4N explicitly specifies 24VDC supply voltage; D4SL-N4FFA-D4 does not specify supply voltage in the provided data. Both parts share identical circuit configuration, current ratings, actuator type, and regulatory approvals.

Q: Are the substitute parts compatible with 240VAC load applications?

A: The D4SL-N series parts specify 120VAC and 125VDC voltage ratings in the provided data. Application of these parts to 240VAC loads requires verification against complete manufacturer specifications not included in this reference. Consult Omron technical documentation for 240VAC compatibility confirmation.

Q: What regulatory approvals apply to the substitute parts?

A: Both D4SL-N4FFA-D4 and D4SL-N4FFA-D4N carry CCC, CE, cURus, and TUV approvals. The original D4GL-1FFA-A4 carries CE, cULus, and TUV approvals. The D4SL-N series provides expanded regulatory coverage including CCC certification.

Q: Does the conduit thread size change affect installation?

A: Yes. The original D4GL-1FFA-A4 specifies PG14.6 conduit thread size, while both D4SL-N substitute parts specify M20. Installation requires mechanical adapter selection or panel modification to accommodate the different thread specification.

Q: What is the holding force difference between the original and substitute parts?

A: The D4GL-1FFA-A4 specifies 102kgf holding force. The D4SL-N4FFA-D4 specifies 133kgf (higher), while D4SL-N4FFA-D4N specifies 6kgf (significantly lower). Application holding force requirements must be verified against the selected substitute part specification.