HC4E-H-AC120V Equivalent & Substitute Parts

Part Overview

The HC4E-H-AC120V is a general purpose 4PDT (4 Form C) relay manufactured by Panasonic Electric Works with a 120VAC coil voltage and 2A contact rating. This socketable relay is designed for general switching applications requiring multiple independent circuits. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance, repair, and legacy equipment support.

Substiute Parts

HC4E-H-AC120V

Panasonic Electric WorksIn Stock: 1152HC4E-H-AC120V Datasheet

Current PartRFQ

MY4 AC110/120 (S)

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4E-H-AC120V is determined by the following critical parameters:

• Contact form must be 4PDT (4 Form C) to maintain circuit switching capability
• Coil voltage must be 120VAC to ensure proper energization in existing control circuits
• Mounting type must be socketable to allow direct replacement in existing relay sockets
• Contact rating must be equal to or greater than 2A to handle the same load currents
• Must operate and release voltages must match or be compatible with 96 VAC and 36 VAC respectively
• Operating temperature range must encompass the application environment
• Switching voltage rating must support 250VAC maximum

The MY4 AC110/120 (S) manufactured by Omron Automation and Safety meets all substitution criteria for the HC4E-H-AC120V.

Parameter Comparison

Engineering Selection Recommendations

The MY4 AC110/120 (S) is the appropriate substitute for the HC4E-H-AC120V based on the following factors:

• The substitute part is currently active in production, ensuring availability for replacement and future procurement
• All critical electrical parameters match or exceed the original specification
• The contact rating of 3A exceeds the 2A requirement, providing additional margin for load handling
• Operating temperature range of -55°C ~ 70°C encompasses the original -50°C ~ 60°C specification
• Both parts are RoHS compliant and carry identical ECCN and HTSUS classifications
• Socketable mounting and plug-in termination enable direct physical replacement in existing relay sockets

Frequently Asked Questions (FAQ)

Q: Can the MY4 AC110/120 (S) be used as a direct replacement for the HC4E-H-AC120V?

A: Yes. Both relays share identical contact form (4PDT), coil voltage (120VAC), mounting type (socketable), and switching characteristics (96 VAC operate, 36 VAC release). The MY4 AC110/120 (S) has a higher contact rating (3A vs 2A) and wider operating temperature range, making it functionally compatible.

Q: What is the difference in contact rating between these two relays?

A: The HC4E-H-AC120V has a 2A contact rating, while the MY4 AC110/120 (S) has a 3A rating. The higher rating of the substitute part provides additional current-handling capacity without reducing compatibility with the original application.

Q: Are there any packaging differences between these relays?

A: The HC4E-H-AC120V uses a 14-pin plug-in termination style, while the MY4 AC110/120 (S) uses a standard plug-in termination. Both are socketable relays designed for direct mounting in relay sockets, ensuring mechanical compatibility.

Q: What is the product status difference?

A: The HC4E-H-AC120V is obsolete and no longer manufactured by Panasonic Electric Works. The MY4 AC110/120 (S) is an active product from Omron Automation and Safety, ensuring continued availability and supply chain support.

Q: Do both relays have the same operating and release times?

A: Yes. Both relays have identical operate and release times of 20 ms, ensuring equivalent switching performance in control circuits.