D4GL-4HFA-A4 Equivalent & Substitute Parts

Part Overview

The D4GL-4HFA-A4 is an interlock solenoid release manufactured by Omron Automation and Safety, configured as a 3PST-NC + DPST-NC switch with panel disconnect actuator type. This part is classified as obsolete, making identification of equivalent and substitute parts essential for system maintenance and component replacement in existing installations.

The D4GL-4HFA-A4 operates at 240VAC with 24VDC supply voltage and provides a holding force of 102kgf. Its screw terminal configuration and M20 conduit thread size are standard for industrial interlock applications requiring dust-tight and waterproof operation per IP67 rating.

Substiute Parts

D4GL-4HFA-A4

Omron Automation and SafetyIn Stock: 975D4GL-4HFA-A4 Datasheet

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D4SL-N4HFA-D4

Omron Automation and SafetyIn Stock: 892D4SL-N4HFA-D4 Datasheet

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D4SL-N4HFA-D4N

Omron Automation and SafetyIn Stock: 978D4SL-N4HFA-D4N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D4GL-4HFA-A4 are identified from the D4SL-N series, which maintains functional equivalence based on the following criteria:

Circuit Configuration Match: Both substitute parts (D4SL-N4HFA-D4 and D4SL-N4HFA-D4N) retain the 3PST-NC + DPST-NC circuit configuration, ensuring identical switching logic and contact arrangement.

Actuator Type Consistency: Panel disconnect actuator type is preserved across all substitute parts, maintaining mechanical compatibility with existing interlock mechanisms.

Conduit Thread Size: M20 conduit thread size is consistent across the main part and both substitutes, ensuring installation compatibility.

Ingress Protection Rating: IP67 rating is maintained, preserving dust-tight and waterproof performance requirements.

Operating Temperature Range: All parts operate within the -10°C ~ 55°C range, ensuring thermal compatibility.

Manufacturer Continuity: All parts are manufactured by Omron Automation and Safety, maintaining supply chain consistency and technical support alignment.

The D4SL-N series represents the active product line evolution from the obsolete D4GL series, with enhanced electrical ratings and expanded voltage options while maintaining mechanical and functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

D4SL-N4HFA-D4: This substitute is active in production and carries expanded regulatory approvals (CCC, CE, cURus, TUV) compared to the obsolete D4GL-4HFA-A4. The higher holding force (133kgf versus 102kgf) and increased current rating (1.5A AC, 220mA DC) provide enhanced performance margins. Screw terminal configuration matches the original part. Voltage rating differs (120VAC, 125VDC versus 240VAC), requiring circuit voltage verification before selection.

D4SL-N4HFA-D4N: This substitute is also active in production with identical regulatory approvals and current ratings to the D4SL-N4HFA-D4. The supply voltage specification (24VDC) directly matches the original part. However, the holding force is significantly reduced (6kgf versus 102kgf), and termination style differs (connector versus screw terminal). This configuration is suitable only for applications where reduced holding force is acceptable and connector termination is compatible with existing wiring infrastructure.

Selection between substitutes depends on holding force requirements and termination style compatibility with the installation. Both substitutes maintain circuit configuration, actuator type, conduit thread size, operating temperature range, and ingress protection rating of the original part.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N4HFA-D4 directly replace D4GL-4HFA-A4 in all applications?

A: Functional substitution is possible based on matching circuit configuration (3PST-NC + DPST-NC), actuator type (panel disconnect), and mechanical dimensions (M20 conduit thread). However, voltage rating differs (120VAC, 125VDC versus 240VAC). Circuit voltage compatibility must be verified before installation. The higher holding force (133kgf) is compatible with applications designed for 102kgf or lower.

Q: What is the primary difference between D4SL-N4HFA-D4 and D4SL-N4HFA-D4N?

A: Both parts share identical circuit configuration, voltage ratings, current ratings, and regulatory approvals. Key differences are: D4SL-N4HFA-D4 has 133kgf holding force with screw terminal termination; D4SL-N4HFA-D4N has 6kgf holding force with connector termination and explicit 24VDC supply voltage specification. Selection depends on holding force requirements and termination compatibility.

Q: Are the substitute parts compatible with the original M20 conduit thread installation?

A: Yes. Both D4SL-N4HFA-D4 and D4SL-N4HFA-D4N maintain M20 conduit thread size, ensuring mechanical compatibility with existing conduit installations.

Q: What regulatory approvals apply to the substitute parts?

A: Both D4SL-N series substitutes carry CCC, CE, cURus, and TUV approvals. The original D4GL-4HFA-A4 carries CE, cULus, and TUV approvals. The D4SL-N series provides expanded regulatory coverage suitable for broader market applications.

Q: Does the operating temperature range remain the same across all parts?

A: Yes. The D4GL-4HFA-A4 and both D4SL-N substitutes operate within -10°C ~ 55°C, ensuring thermal compatibility in equivalent environmental conditions.

Q: Is the IP67 ingress protection rating maintained in substitute parts?

A: Yes. All parts maintain IP67 rating (dust tight, waterproof), preserving environmental protection performance in industrial interlock applications.