HC1-DC24V-D-F Equivalent & Substitute Parts

Part Overview

The HC1-DC24V-D-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a single pole double throw (SPDT) contact configuration with a 24VDC coil and 10A contact rating. This socketable relay is designed for standard industrial switching applications with a maximum switching voltage of 250VAC. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC1-DC24V-D-F

Panasonic Electric WorksIn Stock: 951HC1-DC24V-D-F Datasheet

Current PartRFQ

G2R-1-SD DC24(S)

Omron Automation and SafetyIn Stock: 3801G2R-1-SD DC24(S) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The G2R-1-SD DC24(S) from Omron Automation and Safety qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Coil voltage: 24VDC (identical)
• Contact form: SPDT (1 Form C) (identical)
• Contact rating: 10A (identical)
• Mounting type: Socketable (identical)
• Termination style: Plug In (compatible; Omron variant includes Quick Connect option)
• Coil type: Non Latching (identical)
• Features: Diode (identical)

Acceptable Parameter Variations:

• Switching voltage: Omron part rated 440VAC/125VDC exceeds the 250VAC requirement, providing enhanced capability
• Coil current: Omron 21.6 mA vs. Panasonic 37 mA (lower current consumption acceptable in substitute)
• Operating temperature: Omron -40°C ~ 70°C vs. Panasonic -50°C ~ 70°C (acceptable for most industrial applications)
• Coil resistance: Omron 1.1 kOhms vs. Panasonic 650 Ohms (functional equivalence maintained through identical coil voltage)

Parameter Comparison

Engineering Selection Recommendations

The G2R-1-SD DC24(S) is the appropriate substitute for the obsolete HC1-DC24V-D-F. The Omron part maintains functional equivalence across all critical switching parameters while offering the advantage of active product status and ROHS3 compliance. The enhanced switching voltage rating (440VAC/125VDC) provides additional margin for applications originally designed for the 250VAC maximum specification. The lower coil current consumption of the Omron variant reduces power supply loading. Both relays share identical socketable mounting and plug-in termination, enabling direct mechanical and electrical replacement in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the G2R-1-SD DC24(S) directly replace the HC1-DC24V-D-F in existing applications?

A: Yes. Both relays feature identical 24VDC coil voltage, SPDT contact configuration, 10A contact rating, socketable mounting, and plug-in termination. The Omron substitute meets or exceeds all electrical specifications of the obsolete Panasonic part.

Q: What is the significance of the higher switching voltage rating on the Omron part?

A: The G2R-1-SD DC24(S) is rated for 440VAC/125VDC maximum switching voltage, compared to 250VAC for the HC1-DC24V-D-F. This represents enhanced capability and provides additional safety margin for applications operating at or near the original specification limit.

Q: Are there any compatibility concerns with the termination style?

A: The Omron part offers both standard Plug In and Quick Connect - 0.187" (4.7mm) termination options. Applications using standard plug-in connections will function identically to the original Panasonic relay. Quick Connect capability is an additional feature not present on the original part.

Q: How do the operating temperature ranges compare?

A: The HC1-DC24V-D-F operates from -50°C to 70°C, while the G2R-1-SD DC24(S) operates from -40°C to 70°C. For applications requiring operation below -40°C, the original Panasonic specification must be maintained. For standard industrial temperature ranges, the Omron substitute is suitable.

Q: What is the impact of different coil current specifications?

A: The Omron substitute draws 21.6 mA compared to 37 mA for the Panasonic original. The lower current consumption reduces power supply loading and heat generation, representing an improvement in the substitute design.

Q: Does the Omron part meet current regulatory compliance standards?

A: Yes. The G2R-1-SD DC24(S) is ROHS3 compliant and REACH affected, meeting current environmental and safety regulations. The obsolete HC1-DC24V-D-F does not specify these compliance certifications.