D4GL-4GFG-A-NPT Equivalent & Substitute Parts

Part Overview

The D4GL-4GFG-A-NPT is an interlock solenoid locking switch manufactured by Omron Automation and Safety. This 3PST solenoid locking device features a 24VDC supply voltage, 240VAC rated voltage, and 102kgf holding force with panel disconnect actuator type and screw terminal termination. The product is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new installations where this functionality is required.

Substiute Parts

D4GL-4GFG-A-NPT

Omron Automation and SafetyIn Stock: 743D4GL-4GFG-A-NPT Datasheet

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D4SL-N3GFG-D

Omron Automation and SafetyIn Stock: 856D4SL-N3GFG-D Datasheet

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D4SL-N3GFG-DN

Omron Automation and SafetyIn Stock: 1065D4SL-N3GFG-DN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D4GL-4GFG-A-NPT are identified from the D4SL-N series based on the following substitution criteria:

Matching Parameters:

• Manufacturer: Omron Automation and Safety
• Type: Solenoid Locking
• Circuit Configuration: 3PST-NC + DPST-NO/NC
• Voltage Supply: 24VDC
• Actuator Type: Panel Disconnect
• Operating Temperature: -10°C ~ 55°C
• Ingress Protection: IP67
• Features: Status Indicator
• MSL Rating: 1 (Unlimited)

Allowable Variations:

• Voltage Rating: D4SL-N series rated 120VAC/125VDC (lower than D4GL 240VAC rating)
• Current Rating: D4SL-N series rated 1.5A AC / 220mA DC (higher than D4GL 750mA AC)
• Holding Force: D4SL-N series 6kgf (lower than D4GL 102kgf)
• Conduit Thread Size: D4SL-N series 1/2" NPT (different from D4GL M20)
• Termination Style: D4SL-N3GFG-DN uses Connector termination (vs. D4GL screw terminal)
• Product Status: D4SL-N series is Active (vs. D4GL Obsolete)
• Approval Agencies: D4SL-N series includes CCC, CE, cURus, TUV (expanded certifications)

Parameter Comparison

Engineering Selection Recommendations

D4SL-N3GFG-D Selection Criteria: This substitute maintains screw terminal termination matching the original D4GL-4GFG-A-NPT. The D4SL-N3GFG-D is an active product with expanded regulatory approvals (CCC, CE, cURus, TUV) compared to the obsolete D4GL series. Applications requiring screw terminal connections should select this variant.

D4SL-N3GFG-DN Selection Criteria: This substitute features connector-based termination instead of screw terminals. The D4SL-N3GFG-DN is an active product with identical regulatory approvals to the D4SL-N3GFG-D. Applications with connector-based wiring harnesses or requiring quick-disconnect capability should select this variant.

Compliance Considerations: Both D4SL-N substitutes carry CE, TUV, and additional CCC/cURus certifications, providing broader regulatory coverage than the original D4GL-4GFG-A-NPT. The active product status of both D4SL-N variants ensures ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Can D4SL-N3GFG-D or D4SL-N3GFG-DN directly replace D4GL-4GFG-A-NPT in existing installations?

A: Both D4SL-N variants share the same circuit configuration (3PST-NC + DPST-NO/NC), 24VDC supply voltage, panel disconnect actuator, and IP67 rating. However, the D4SL-N series has lower voltage rating (120VAC/125VDC vs. 240VAC) and lower holding force (6kgf vs. 102kgf). Substitution is valid only when the application operates within D4SL-N electrical and mechanical specifications.

Q: What is the difference between D4SL-N3GFG-D and D4SL-N3GFG-DN?

A: The primary difference is termination style. D4SL-N3GFG-D uses screw terminals, matching the original D4GL-4GFG-A-NPT termination method. D4SL-N3GFG-DN uses connector termination for quick-disconnect applications. Both share identical electrical specifications and regulatory approvals.

Q: Why does the D4SL-N series have lower holding force than the D4GL-4GFG-A-NPT?

A: The D4SL-N and D4GL series represent different product lines within Omron's solenoid locking portfolio, designed for different application force requirements. The D4GL-4GFG-A-NPT (102kgf) targets high-force applications, while D4SL-N (6kgf) targets standard-force applications. Selection must match the specific holding force requirement of the application.

Q: Are there packaging differences between these parts?

A: D4GL-4GFG-A-NPT is listed with "-" packaging designation. D4SL-N3GFG-D and D4SL-N3GFG-DN are supplied in bulk packaging. Consult with the supplier regarding minimum order quantities and packaging configurations for procurement planning.

Q: What conduit thread compatibility should be considered?

A: D4GL-4GFG-A-NPT uses M20 conduit thread size, while D4SL-N series uses 1/2" NPT. Mechanical installation may require adapter fittings or conduit modifications when substituting between these thread standards.