Omron D4GL-4DFA-A4 Interlock Solenoid Release Equivalent & Substitute Parts

Part Overview

The Omron D4GL-4DFA-A4 is a DPST interlock solenoid release switch designed for panel disconnect applications. This component features a 24VDC supply voltage, 240VAC circuit rating, and 102kgf holding force with IP67 ingress protection. The product is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for existing installations and new designs requiring similar performance characteristics.

Substiute Parts

D4GL-4DFA-A4

Omron Automation and SafetyIn Stock: 977D4GL-4DFA-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

Substitution of the D4GL-4DFA-A4 is based on the following critical parameters that must align across alternatives:

Mandatory Compatibility Parameters:

• Circuit configuration: DPST-NC x 2
• Actuator type: Panel Disconnect
• Conduit thread size: M20
• Ingress protection: IP67
• Operating temperature range: -10°C to 55°C
• Moisture sensitivity level: 1 (Unlimited)

Functional Tolerance Parameters:

• Current rating: Substitute must support minimum 750mA AC
• Voltage rating: Substitute must support minimum 240VAC circuit operation
• Holding force: Substitute must support minimum 102kgf
• Termination style: Screw terminal or connector acceptable for panel disconnect applications

The D4SL-N series (D4SL-N4DFA and D4SL-N4DFA-N) share identical circuit configuration, actuator type, conduit threading, ingress protection, and operating parameters. However, these substitutes operate at reduced voltage and current ratings (120VAC/125VDC, 1.5A AC/220mA DC) and lower holding force (6kgf), indicating they are suitable only for applications where the original 240VAC/750mA/102kgf specifications are not required.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): No active substitute maintains the full electrical specification of the D4GL-4DFA-A4 (240VAC, 750mA AC, 102kgf holding force). The D4GL series is obsolete with no direct active equivalent in the Omron portfolio.

For Functional Substitution (Reduced Specifications): The D4SL-N4DFA and D4SL-N4DFA-N are active alternatives suitable only for applications operating at 120VAC/125VDC with lower current and holding force requirements. Both maintain identical circuit configuration (DPST-NC x 2), actuator type (Panel Disconnect), mechanical interface (M20 conduit thread), environmental protection (IP67), and temperature operating range (-10°C to 55°C).

Termination Consideration:

• D4SL-N4DFA: Screw terminal termination (matches D4GL-4DFA-A4 termination style)
• D4SL-N4DFA-N: Connector termination (requires interface adaptation)

Compliance Status: Both D4SL-N alternatives carry expanded approval certifications (CCC, CE, cURus, TUV) compared to the original D4GL-4DFA-A4 (CE, cULus, TUV), providing broader regulatory acceptance in current markets.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4DFA or D4SL-N4DFA-N directly replace D4GL-4DFA-A4 in existing installations?

A: Direct replacement is possible only if the application operates at 120VAC or 125VDC with current draw not exceeding 1.5A AC or 220mA DC, and holding force requirements do not exceed 6kgf. The D4GL-4DFA-A4 is rated for 240VAC and 102kgf holding force, which the D4SL-N series cannot support. Verify your application's actual voltage and force requirements before substitution.

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

A: Both parts are electrically and functionally identical. The primary difference is termination style: D4SL-N4DFA uses screw terminals (matching the original D4GL-4DFA-A4), while D4SL-N4DFA-N uses connector termination. Select based on your panel wiring interface requirements.

Q: Are the D4SL-N alternatives suitable for high-voltage applications?

A: No. The D4SL-N series is rated for maximum 120VAC or 125VDC operation. Applications requiring 240VAC operation cannot use these substitutes. Consult Omron for alternatives rated at higher voltages.

Q: Do the substitute parts maintain the same mechanical interface?

A: Yes. Both D4SL-N4DFA and D4SL-N4DFA-N share the same M20 conduit thread size, panel disconnect actuator type, and IP67 ingress protection as the D4GL-4DFA-A4. Mechanical mounting compatibility is maintained.

Q: What certifications do the substitute parts carry?

A: D4SL-N4DFA and D4SL-N4DFA-N carry CCC, CE, cURus, and TUV approvals. The original D4GL-4DFA-A4 carries CE, cULus, and TUV approvals. Verify that the substitute certifications meet your regional regulatory requirements.