HC4ED-L-AC100V Equivalent & Substitute Parts

Part Overview

The HC4ED-L-AC100V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 100VAC coil voltage and 1A contact rating. This socketable relay includes a lighted indicator and is designed for non-latching operation across industrial control applications.

The HC4ED-L-AC100V is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support ongoing maintenance and replacement requirements for legacy equipment.

Substiute Parts

HC4ED-L-AC100V

Panasonic Electric WorksIn Stock: 1199HC4ED-L-AC100V Datasheet

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MY4 AC110/120 (S)

Omron Automation and SafetyIn Stock: 1261MY4 AC110/120 (S) Datasheet

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MY4N AC100/110 (S)

Omron Automation and SafetyIn Stock: 1066MY4N AC100/110 (S) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HC4ED-L-AC100V are qualified based on the following critical parameters:

Primary Compatibility Criteria:

• Contact form: 4PDT (4 Form C) configuration
• Mounting type: Socketable
• Coil type: Non-latching operation
• Operate and release time: 20 ms
• Switching voltage capability: 250VAC minimum

Secondary Compatibility Criteria:

• Coil voltage: 100VAC nominal (acceptable range: 88VAC to 120VAC based on must-operate and must-release voltage specifications)
• Contact rating: Minimum 1A (higher ratings are acceptable for load compatibility)
• Operating temperature range: Must encompass or exceed -40°C ~ 60°C

The substitute parts MY4 AC110/120 (S) and MY4N AC100/110 (S) from Omron Automation and Safety meet all primary and secondary compatibility criteria. Both are active-status general purpose relays with 4PDT contact configuration, socketable mounting, and equivalent switching characteristics.

Parameter Comparison

Engineering Selection Recommendations

MY4N AC100/110 (S) is the primary substitute for HC4ED-L-AC100V. This part maintains functional equivalence across all critical parameters: identical 4PDT contact configuration, socketable mounting, 20 ms switching times, and coil voltage within the acceptable operating range. The MY4N AC100/110 (S) includes a lighted indicator feature matching the original part. Both parts are classified as RoHS Compliant and REACH Unaffected, supporting modern compliance requirements. The MY4N AC100/110 (S) is currently in active production status with confirmed inventory availability.

MY4 AC110/120 (S) serves as a secondary substitute. This part meets all primary compatibility criteria with identical contact configuration, switching characteristics, and socketable mounting. The coil voltage is 120VAC, which falls within the acceptable operating range. However, this part does not include a lighted indicator feature present in the original HC4ED-L-AC100V. The MY4 AC110/120 (S) is also RoHS Compliant and REACH Unaffected with active production status.

Both substitute parts demonstrate superior contact rating (3A versus 1A), lower coil current draw, and extended operating temperature range compared to the obsolete HC4ED-L-AC100V, providing enhanced performance margins for replacement applications.

Frequently Asked Questions (FAQ)

Q: Can MY4 AC110/120 (S) and MY4N AC100/110 (S) be used interchangeably with HC4ED-L-AC100V?

A: Both parts are functionally equivalent as direct substitutes. The primary difference is coil voltage: MY4N AC100/110 (S) operates at 110VAC (closer to the original 100VAC specification), while MY4 AC110/120 (S) operates at 120VAC. Both voltages fall within acceptable operating ranges for the application. Additionally, MY4N AC100/110 (S) includes a lighted indicator matching the original part feature.

Q: What is the acceptable coil voltage range for substitution?

A: Substitution is valid within the must-operate and must-release voltage specifications. For HC4ED-L-AC100V, the acceptable range is 80VAC to 120VAC. Both MY4 AC110/120 (S) (120VAC) and MY4N AC100/110 (S) (110VAC) operate within this range.

Q: Are the substitute parts compatible with the original socketable mounting?

A: Yes. Both MY4 AC110/120 (S) and MY4N AC100/110 (S) are socketable relays designed for plug-in base mounting, maintaining mechanical compatibility with HC4ED-L-AC100V socket installations.

Q: What is the difference in contact rating between the original and substitute parts?

A: HC4ED-L-AC100V is rated for 1A contact current, while both substitute parts are rated for 3A. Higher contact rating provides additional safety margin and is acceptable for applications requiring 1A or less.

Q: Do the substitute parts meet current compliance standards?

A: Yes. Both MY4 AC110/120 (S) and MY4N AC100/110 (S) are RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute part should be selected for new designs?

A: MY4N AC100/110 (S) is recommended for new designs due to coil voltage alignment with the original specification (110VAC versus 100VAC) and inclusion of the lighted indicator feature. Both parts are in active production with confirmed inventory availability.