HC4-HP-AC240V Equivalent & Substitute Parts

Part Overview

The HC4-HP-AC240V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 240VAC coil. This through-hole mounted relay is designed for applications requiring simultaneous switching of four independent circuits at 5A contact rating. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC4-HP-AC240V

Panasonic Electric WorksIn Stock: 1212HC4-HP-AC240V Datasheet

Current PartRFQ

LY4-0-AC240

Omron Automation and SafetyIn Stock: 820LY4-0-AC240 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LY4-0-AC240 from Omron Automation and Safety qualifies as a substitute based on the following critical parameters:

Matching Parameters:

• Coil Voltage: 240VAC (identical)
• Contact Form: 4PDT (4 Form C) (identical)
• Mounting Type: Through Hole (identical)
• Termination Style: PC Pin (identical)
• Must Operate Voltage: 192 VAC (identical)
• Must Release Voltage: 72 VAC (identical)
• Switching Voltage: 250VAC maximum (compatible)

Differing Parameters:

• Contact Rating: LY4-0-AC240 provides 10A versus 5A on HC4-HP-AC240V (higher capacity)
• Operating Temperature: LY4-0-AC240 operates -25°C ~ 40°C versus -50°C ~ 70°C (narrower range)
• Coil Current: LY4-0-AC240 draws 9.5 mA versus 5 mA (higher consumption)
• Switching Voltage: LY4-0-AC240 supports 250VAC and 125VDC versus 250VAC only

The LY4-0-AC240 is functionally compatible for applications within its operating temperature range and coil current specifications.

Parameter Comparison

Engineering Selection Recommendations

The LY4-0-AC240 is an active product from a major automation manufacturer, providing continuity for applications currently using the obsolete HC4-HP-AC240V. Selection of the LY4-0-AC240 is appropriate when:

• Operating temperature requirements fall within -25°C to 40°C
• Circuit design can accommodate 9.5 mA coil current versus the original 5 mA specification
• Application load does not exceed 10A contact rating (the substitute provides higher capacity)
• Switching timing tolerance permits 25 ms operate and release times versus 20 ms

The LY4-0-AC240 maintains identical coil voltage, contact configuration, mounting method, and voltage threshold specifications, ensuring direct functional replacement in most applications. Both components carry EAR99 export classification and MSL-1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can the LY4-0-AC240 directly replace the HC4-HP-AC240V in all applications?

A: Direct replacement is possible when the application operates within the LY4-0-AC240 temperature range (-25°C to 40°C) and the circuit design accommodates the higher coil current draw (9.5 mA versus 5 mA). The identical coil voltage, contact form, and voltage thresholds ensure functional compatibility for switching operations.

Q: What is the significance of the higher 10A contact rating on the LY4-0-AC240?

A: The LY4-0-AC240 provides 10A contact capacity compared to the HC4-HP-AC240V's 5A rating. This represents increased current handling capability and does not restrict its use in applications rated for 5A or lower. The higher rating provides design margin for future load increases.

Q: How do the timing differences affect circuit operation?

A: The LY4-0-AC240 operates with 25 ms switching times versus 20 ms on the HC4-HP-AC240V. This 5 ms difference is negligible for most industrial control applications but should be evaluated in time-critical switching sequences or high-frequency switching scenarios.

Q: Are there packaging differences between these components?

A: The HC4-HP-AC240V is supplied in standard packaging, while the LY4-0-AC240 is available in bulk packaging. Both use identical PC pin termination for through-hole mounting, ensuring mechanical compatibility on printed circuit boards.

Q: What compliance certifications apply to both relays?

A: Both the HC4-HP-AC240V and LY4-0-AC240 carry EAR99 export classification and MSL-1 (unlimited) moisture sensitivity rating, indicating no special moisture protection requirements during storage or handling.