HC4E-L-AC100V Equivalent & Substitute Parts

Part Overview

The HC4E-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 2A contact rating. This socketable relay includes a lighted indicator and operates across a temperature range of -40°C to 60°C. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Key Parameters

Parameter	HC4E-L-AC100V
Manufacturer	Panasonic Electric Works
Contact Form	4PDT (4 Form C)
Coil Voltage	100VAC
Contact Rating (Current)	2 A
Switching Voltage (Max)	250VAC
Mounting Type	Socketable
Termination Style	Plug In
Coil Type	Non Latching
Operating Temperature Range	-40°C ~ 60°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the HC4E-L-AC100V is based on the following critical parameters that must align across candidate parts:

Primary Compatibility Criteria:

Contact form: 4PDT (4 Form C) configuration
Mounting type: Socketable with plug-in termination
Coil type: Non-latching operation
Switching voltage capability: Minimum 250VAC

Coil Voltage Tolerance: Substitute relays operate at 110VAC or 120VAC nominal coil voltages. The HC4E-L-AC100V operates at 100VAC with a must-operate voltage of 80VAC and must-release voltage of 30VAC. Substitute parts with 110VAC or 120VAC coils fall within acceptable operating ranges when applied to 100VAC circuits, provided the control circuit voltage tolerance accommodates the nominal coil voltage difference.

Contact Rating Consideration: The HC4E-L-AC100V is rated for 2A continuous contact current. Substitute parts rated for 3A contact current provide equivalent or superior performance in applications requiring the 2A rating.

Parameter Comparison

Parameter	HC4E-L-AC100V	MY4 AC110/120 (S)	MY4N AC100/110 (S)
Manufacturer	Panasonic Electric Works	Omron Automation and Safety	Omron Automation and Safety
Contact Form	4PDT (4 Form C)	4PDT (4 Form C)	4PDT (4 Form C)
Coil Voltage	100VAC	120VAC	110VAC
Contact Rating (Current)	2 A	3 A	3 A
Switching Voltage (Max)	250VAC	250VAC, 125VDC	250VAC, 125VDC
Coil Current	12 mA	8.4 mA	9.2 mA
Mounting Type	Socketable	Socketable	Socketable
Termination Style	Plug In	Plug In	Plug In
Coil Type	Non Latching	Non Latching	Non Latching
Operate Time	20 ms	20 ms	20 ms
Release Time	20 ms	20 ms	20 ms
Operating Temperature Range	-40°C ~ 60°C	-55°C ~ 70°C	-55°C ~ 70°C
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Both MY4 AC110/120 (S) and MY4N AC100/110 (S) are active products manufactured by Omron Automation and Safety and serve as functional equivalents to the obsolete HC4E-L-AC100V.

MY4N AC100/110 (S) is the preferred substitute when direct coil voltage alignment is prioritized. Operating at 110VAC nominal, this relay closely matches the 100VAC specification of the original part. The MY4N AC100/110 (S) includes a lighted indicator feature, matching the HC4E-L-AC100V specification. Both Omron substitutes are RoHS compliant and carry REACH unaffected status, meeting modern regulatory requirements.

MY4 AC110/120 (S) operates at 120VAC nominal coil voltage and provides equivalent electrical performance with identical contact form, mounting type, and switching voltage capability. This option is suitable for applications where the control circuit voltage can accommodate the higher nominal coil voltage.

Both substitutes feature lower coil current draw (8.4 mA and 9.2 mA respectively) compared to the original 12 mA specification, reducing control circuit power requirements. Both maintain identical 20 ms operate and release times and support the same 250VAC maximum switching voltage.

Frequently Asked Questions (FAQ)

Q: Can MY4 AC110/120 (S) or MY4N AC100/110 (S) be used directly in a circuit designed for HC4E-L-AC100V?

A: Yes, both substitutes are compatible. The MY4N AC100/110 (S) is preferred due to its 110VAC coil voltage, which is closer to the original 100VAC specification. The MY4 AC110/120 (S) at 120VAC is also acceptable if the control circuit voltage tolerance accommodates the nominal difference.

Q: What is the difference between MY4 AC110/120 (S) and MY4N AC100/110 (S)?

A: The primary difference is coil voltage: MY4 AC110/120 operates at 120VAC nominal, while MY4N AC100/110 operates at 110VAC nominal. The MY4N AC100/110 includes a lighted indicator matching the original HC4E-L-AC100V feature. Both share identical contact form, mounting type, and switching voltage specifications.

Q: Are the substitute relays socketable with the same base as the original?

A: Both MY4 AC110/120 (S) and MY4N AC100/110 (S) are socketable relays with plug-in termination, maintaining compatibility with standard relay sockets designed for 4PDT socketable relays.

Q: Do the substitute parts meet current regulatory requirements?

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

Q: What is the contact current rating difference, and does it affect substitution?

A: The HC4E-L-AC100V is rated for 2A contact current, while both substitutes are rated for 3A. This represents a performance improvement and does not restrict substitution for applications requiring the original 2A rating.

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