HC4-H-AC200V Equivalent & Substitute Parts

Part Overview

The HC4-H-AC200V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 200VAC coil. This socketable relay is rated for 5A switching current at 250VAC maximum and operates with a 6mA coil current. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance, repair, and redesign applications where this relay is specified.

Substiute Parts

HC4-H-AC200V

Panasonic Electric WorksIn Stock: 1081HC4-H-AC200V Datasheet

Current PartRFQ

LY4-AC200/220

Omron Automation and SafetyIn Stock: 979LY4-AC200/220 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4-H-AC200V is determined by the following critical parameters:

Contact configuration must remain 4PDT (4 Form C) to maintain electrical circuit topology and switching capability.

Coil voltage must operate within the system supply range. The HC4-H-AC200V operates at 200VAC; substitutes operating at 220VAC are acceptable within typical industrial AC supply tolerances (±10%).

Contact current rating must equal or exceed 5A to handle the specified load without derating.

Switching voltage rating must support 250VAC operation.

Mounting type must be socketable to ensure mechanical compatibility with existing relay bases and sockets.

Termination style must be plug-in configuration for direct socket compatibility.

Coil type must remain non-latching to preserve control logic behavior.

Parameter Comparison

Engineering Selection Recommendations

The LY4-AC200/220 from Omron Automation and Safety is a direct functional substitute for the HC4-H-AC200V. Both relays share identical contact configuration (4PDT), socketable mounting, plug-in termination, and non-latching coil type. The LY4-AC200/220 operates at 220VAC, which is within standard industrial AC supply tolerance of the 200VAC specification. The substitute provides superior contact current rating (10A versus 5A), enabling operation with higher load currents without derating.

The LY4-AC200/220 is currently in active production status, ensuring availability for new designs and replacement applications. The substitute carries RoHS compliance certification, meeting modern environmental and regulatory requirements. Both components share EAR99 export classification and identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).

Operating temperature range differs between the two relays. The HC4-H-AC200V operates from -50°C to 70°C, while the LY4-AC200/220 operates from -25°C to 40°C. Applications requiring operation below -25°C or above 40°C must evaluate this limitation against system requirements.

Timing characteristics show minor differences: the LY4-AC200/220 exhibits 25ms operate and release times compared to 20ms for the HC4-H-AC200V. Applications with strict timing requirements below 25ms must account for this 5ms increase.

Frequently Asked Questions (FAQ)

Q: Can the LY4-AC200/220 directly replace the HC4-H-AC200V in existing installations?

A: Yes, the LY4-AC200/220 provides direct functional replacement. Both relays feature identical 4PDT contact configuration, socketable mounting, and plug-in termination. The substitute can be installed in existing relay sockets without modification.

Q: Is the 220VAC coil voltage compatible with 200VAC supply systems?

A: The 220VAC coil voltage is compatible with 200VAC supply systems within standard industrial AC supply tolerances. The LY4-AC200/220 must operate voltage of 176VAC ensures reliable operation on 200VAC supplies. Verify actual supply voltage in your system falls within the relay's operating range.

Q: What is the significance of the higher 10A contact rating on the LY4-AC200/220?

A: The LY4-AC200/220 contact rating of 10A exceeds the HC4-H-AC200V rating of 5A. This allows the substitute to switch higher load currents without derating. Existing applications using 5A or less loads operate within the substitute's rated capacity.

Q: Are there temperature range limitations when substituting?

A: The LY4-AC200/220 operating temperature range (-25°C to 40°C) is narrower than the HC4-H-AC200V range (-50°C to 70°C). Applications requiring operation below -25°C or above 40°C must verify the substitute meets environmental requirements before implementation.

Q: How do timing differences affect system performance?

A: The LY4-AC200/220 exhibits 25ms operate and release times versus 20ms for the HC4-H-AC200V. This 5ms difference is negligible for most general purpose relay applications. Applications with timing-critical control logic must evaluate whether the increased delay affects system function.

Q: What compliance certifications does the substitute carry?

A: The LY4-AC200/220 is RoHS compliant and carries EAR99 export classification. Both certifications meet current environmental and regulatory standards for industrial relay applications.