Omron MY2 AC220/240 (S) General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The Omron MY2 AC220/240 (S) is an active general purpose relay featuring DPDT (2 Form C) contact configuration with 240VAC coil voltage and 5A contact rating. This socketable relay is designed for industrial control applications requiring reliable switching at 250VAC or 125VDC maximum switching voltage. Finding equivalent substitute parts is necessary when managing inventory constraints, ensuring supply chain continuity, or matching specific application requirements within compatible electrical and mechanical parameters.

Substiute Parts

MY2 AC220/240 (S)

Omron Automation and SafetyIn Stock: 807MY2 AC220/240 (S) Datasheet

Current PartRFQ

PT270730

TE Connectivity Potter & Brumfield RelaysIn Stock: 1165PT270730 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Omron MY2 AC220/240 (S) is determined by the following critical parameters:

• Contact Configuration: DPDT (2 Form C) contact form is mandatory for functional equivalence
• Mounting Type: Socketable mounting ensures mechanical compatibility with existing relay bases
• Termination Style: Plug In termination allows direct socket compatibility
• Coil Voltage Range: 230VAC to 240VAC coil voltage maintains operational compatibility within the control circuit
• Contact Rating: Minimum 5A contact current rating ensures the substitute can handle the same load switching requirements
• Switching Voltage: Maximum switching voltage must meet or exceed 250VAC to maintain dielectric safety margins
• Operating Temperature: Temperature range must encompass or overlap the application environment
• Compliance: RoHS and REACH compliance status ensures regulatory alignment

The PT270730 from TE Connectivity Potter & Brumfield Relays meets these substitution criteria through compatible electrical characteristics and mechanical form factor.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity PT270730 is a qualified substitute for the Omron MY2 AC220/240 (S) based on the following engineering criteria:

Electrical Compatibility: The PT270730 maintains DPDT contact configuration with coil voltage within 10V of the original specification (230VAC vs. 240VAC). Coil resistance values are within 4% tolerance (19.47 kOhms vs. 18.79 kOhms), ensuring compatible control circuit performance. Contact rating of 12A exceeds the 5A requirement, providing additional margin for load switching.

Mechanical Compatibility: Both relays feature socketable mounting with plug-in termination, enabling direct installation into existing relay bases without mechanical modification.

Regulatory Compliance: Both parts maintain RoHS and REACH compliance status, satisfying regulatory requirements for the target application.

Operational Parameters: Must operate and release voltages are within acceptable engineering tolerances. The PT270730 operating temperature range of -40°C to 70°C covers the upper portion of the original -55°C to 70°C specification; applications requiring operation below -40°C require the original Omron part.

Additional Features: The PT270730 includes mechanical indicator and test button functionality not present in the base MY2 specification, providing enhanced diagnostics capability without compromising substitution eligibility.

Frequently Asked Questions (FAQ)

Q: Can the PT270730 be used as a direct replacement in all applications?

A: The PT270730 is electrically and mechanically compatible for applications operating at or above -40°C. Applications requiring operation below -40°C must use the original Omron MY2 AC220/240 (S) due to its extended temperature range to -55°C.

Q: What is the significance of the coil voltage difference (240VAC vs. 230VAC)?

A: The 10V difference falls within standard industrial tolerance for AC supply voltage variation (typically ±10%). Both relays will operate reliably across the specified must-operate and must-release voltage thresholds in typical control circuits.

Q: Does the higher contact rating of the PT270730 (12A vs. 5A) affect compatibility?

A: No. Higher contact rating indicates greater switching capacity and is not a compatibility concern. The PT270730 can safely switch the same 5A loads as the original part while providing additional margin for future application changes.

Q: Are the contact materials interchangeable?

A: Both relays use precious metal contacts (Silver for MY2, Silver Nickel for PT270730). Silver Nickel provides enhanced wear resistance compared to pure silver, making it suitable for the same switching applications.

Q: What is the impact of the additional features on the PT270730?

A: The mechanical indicator and test button on the PT270730 provide operational diagnostics without affecting electrical substitution eligibility. These features are passive additions that do not interfere with standard relay operation.

Q: Can the PT270730 be used in applications requiring the full -55°C to 70°C temperature range?

A: No. The PT270730 operating range begins at -40°C. For applications requiring operation below -40°C, the original Omron MY2 AC220/240 (S) must be specified.