HC4E-L-DC48V Equivalent & Substitute Parts

Part Overview

The HC4E-L-DC48V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 48VDC coil. This socketable relay is designed for applications requiring switching of up to 2A at 250VAC maximum. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

HC4E-L-DC48V

Panasonic Electric WorksIn Stock: 785HC4E-L-DC48V Datasheet

Current PartRFQ

MY4N DC48 (S)

Omron Automation and SafetyIn Stock: 1198MY4N DC48 (S) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4E-L-DC48V is determined by the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 48VDC
• Contact form: 4PDT (4 Form C)
• Mounting type: Socketable
• Termination style: Plug In
• Must operate voltage: 38.4 VDC
• Must release voltage: 4.8 VDC
• Operate and release time: 20 ms each

Allowable Variation Parameters:

• Contact rating current: Equal to or greater than 2 A
• Switching voltage: Equal to or greater than 250VAC
• Operating temperature range: May extend beyond -50°C ~ 60°C
• Coil current: Within ±5% of 18.5 mA
• Coil resistance: Within ±5% of 2.6 kOhms

The MY4N DC48 (S) manufactured by Omron Automation and Safety meets all mandatory parameters and exceeds allowable variation thresholds, qualifying as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The MY4N DC48 (S) is the qualified substitute for the HC4E-L-DC48V based on the following factors:

Electrical Compatibility: All critical electrical parameters match or exceed the original specification. Coil voltage, contact form, switching thresholds, and timing characteristics are identical. The substitute provides higher contact current rating (3 A versus 2 A), extending application capability without compromising performance in existing circuits.

Mechanical Compatibility: Both relays feature socketable mounting with plug-in termination, ensuring direct physical replacement without circuit board modification.

Product Status: The MY4N DC48 (S) is active in production with RoHS compliance certification, providing long-term availability and regulatory alignment for new installations and replacements.

Operational Range: The Omron substitute extends the operating temperature range to -55°C ~ 70°C, providing enhanced performance margin in temperature-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the MY4N DC48 (S) be used as a direct replacement for the HC4E-L-DC48V?

A: Yes. Both relays share identical coil voltage (48VDC), contact form (4PDT), mounting type (socketable), and timing characteristics (20 ms operate/release). The substitute meets all mandatory electrical and mechanical parameters for direct substitution.

Q: What is the significance of the higher 3 A contact rating on the MY4N DC48 (S)?

A: The substitute provides 50% higher current capacity (3 A versus 2 A) while maintaining all other specifications. This allows the relay to handle higher switching loads without performance degradation. Existing circuits designed for 2 A operation remain fully compatible.

Q: Are there differences in contact material between the two relays?

A: The HC4E-L-DC48V uses silver alloy with cadmium-free composition. The MY4N DC48 (S) uses silver (Ag) contact material. Both materials provide equivalent switching performance and reliability for the specified voltage and current ranges.

Q: How do the coil current specifications compare?

A: The HC4E-L-DC48V requires 18.5 mA coil current, while the MY4N DC48 (S) requires 18.8 mA. This 1.6% difference is within acceptable tolerance and does not affect circuit design or power supply requirements.

Q: What is the impact of the extended operating temperature range on the MY4N DC48 (S)?

A: The substitute operates from -55°C to 70°C compared to the original -50°C to 60°C range. This provides additional margin for applications in extreme temperature environments. Existing installations within the original temperature range experience no change in performance.

Q: Are both relays available in the same packaging format?

A: Both relays use socketable plug-in termination. The HC4E-L-DC48V is obsolete; the MY4N DC48 (S) is currently in active production with bulk packaging availability.