HC4ED-L-DC24V Equivalent & Substitute Parts

Part Overview

The HC4ED-L-DC24V is a general purpose 4PDT relay manufactured by Panasonic Electric Works, designed for socketable mounting with a 24VDC coil and 1A contact rating. This component is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs. The relay features a 4 Form C contact configuration with lighted indicator, operating across -40°C to 60°C with 250VAC maximum switching voltage.

Substiute Parts

HC4ED-L-DC24V

Panasonic Electric WorksIn Stock: 918HC4ED-L-DC24V Datasheet

Current PartRFQ

MYQ4ZN DC24

Omron Automation and SafetyIn Stock: 1111MYQ4ZN DC24 Datasheet

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MY4 AC24 (S)

Omron Automation and SafetyIn Stock: 913MY4 AC24 (S) Datasheet

SimilarRFQ

MY4ZN DC24 (S)

Omron Automation and SafetyIn Stock: 865MY4ZN DC24 (S) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the HC4ED-L-DC24V is determined by the following critical parameters: 24VDC coil voltage, 4PDT contact configuration, socketable mounting, plug-in termination, and non-latching coil type. These parameters define the functional and mechanical compatibility envelope.

The substitute parts are grouped into two categories:

Direct Equivalent: MYQ4ZN DC24 matches all critical parameters including 1A contact rating, 24VDC coil voltage, and identical electrical operating characteristics (19.2 VDC must-operate, 2.4 VDC must-release).

Similar Substitutes: MY4 AC24 (S) and MY4ZN DC24 (S) share the same contact form, mounting type, and termination style but differ in contact rating (3A vs 1A) and coil voltage specifications. MY4 AC24 (S) operates on 24VAC rather than 24VDC. These parts are suitable only when the higher contact rating and alternative coil voltage are compatible with the application circuit.

Parameter Comparison

Engineering Selection Recommendations

MYQ4ZN DC24 is the primary direct equivalent for HC4ED-L-DC24V replacement. This Omron part maintains identical electrical specifications including 24VDC coil voltage, 1A contact rating, and matching must-operate/must-release voltage thresholds. The part is active in production with ROHS3 compliance and fully sealed construction, providing enhanced environmental protection compared to the obsolete Panasonic original. Coil resistance and current draw are functionally equivalent.

MY4ZN DC24 (S) serves as an alternative when higher contact current capacity (3A vs 1A) is acceptable within the application circuit. This part maintains 24VDC coil operation and identical voltage thresholds. The lighted indicator feature is retained. ROHS3 compliance and extended operating temperature range (-55°C to 70°C) provide additional design margin.

MY4 AC24 (S) is suitable only for applications where the control circuit supplies 24VAC rather than 24VDC. This part features 3A contact rating and different voltage thresholds (19.2 VAC must-operate, 7.2 VAC must-release). The absence of a lighted indicator and different coil resistance (180 Ohms vs 650 Ohms) require circuit verification before substitution.

All substitute parts maintain socketable mounting and plug-in termination compatibility with the original HC4ED-L-DC24V base.

Frequently Asked Questions (FAQ)

Q: Can MYQ4ZN DC24 directly replace HC4ED-L-DC24V without circuit modification?

A: Yes. MYQ4ZN DC24 is a direct equivalent with matching 24VDC coil voltage, 1A contact rating, and identical must-operate/must-release voltage specifications. Socket compatibility and plug-in termination are maintained. No circuit changes are required.

Q: What is the difference between MYQ4ZN DC24 and MY4ZN DC24 (S)?

A: Both parts operate on 24VDC with identical voltage thresholds and lighted indicator features. The primary difference is contact rating: MYQ4ZN DC24 is rated 1A (matching the original), while MY4ZN DC24 (S) is rated 3A. Select based on actual circuit current requirements. MY4ZN DC24 (S) provides higher capacity if needed.

Q: Why is MY4 AC24 (S) listed as a substitute if it uses 24VAC instead of 24VDC?

A: MY4 AC24 (S) is included as a similar substitute for applications where the control circuit operates on 24VAC. This part is not interchangeable with HC4ED-L-DC24V in 24VDC circuits. Verify coil voltage supply before selection.

Q: Are all substitute parts RoHS compliant?

A: MYQ4ZN DC24 and MY4ZN DC24 (S) are ROHS3 compliant. MY4 AC24 (S) is RoHS compliant. All parts meet current environmental standards.

Q: Does MYQ4ZN DC24 include the lighted indicator feature?

A: Yes. MYQ4ZN DC24 retains the lighted indicator feature present in the original HC4ED-L-DC24V. MY4 AC24 (S) does not include this feature.

Q: What is the operating temperature range difference?

A: HC4ED-L-DC24V operates -40°C to 60°C. MYQ4ZN DC24 operates -55°C to 60°C, providing lower temperature capability. MY4 AC24 (S) and MY4ZN DC24 (S) both operate -55°C to 70°C, offering extended range in both directions.

Q: Is socket compatibility guaranteed between the original and substitute parts?

A: All listed substitutes maintain socketable mounting type and plug-in termination style. Physical socket compatibility is preserved. Verify socket base part numbers (HC4ED-L vs MYQ4 vs MY4 vs MY4ZN) with your specific socket hardware if required.