Omron MY2N Relay — DPDT Specs, Coil Options & Buyer Guide

By Abdullah Zahid
16 min read
Omron MY2N miniature plug-in DPDT power relay with operation indicator for industrial control panel interposing applications

Omron MY2N Miniature Power Relay — Plug-In DPDT Specs, Coil Options, and Selection Guide

Controls engineers and panel builders searching for Omron MY2N relay specs and pricing are typically at one of two moments: they are replacing a failed unit in an existing panel and need to confirm the correct variant fast, or they are specifying a relay for a new interposing or switching application and want to validate that the MY2N family is still the right call. The MY2N is Omron's 2-pole DPDT miniature plug-in power relay with a built-in operation indicator, rated for up to 10 A per pole, and available in a wide range of AC and DC coil voltages — making it one of the most broadly stocked general-purpose relays in industrial distribution. Getting the coil voltage, variant suffix, and socket family right before you order is where most of the real selection work happens.

If you have already confirmed this is the correct part, check current pricing and availability for the Omron MY2N at LeadTime.ca — we ship worldwide.

Who Should Buy the Omron MY2N — and Who Should Look at a Different Variant

The MY2N is the right relay when all of the following are true for your application:

  • Your control circuit voltage and type (AC or DC, at a nominal value such as 24 VDC, 110/120 VAC, or 220/240 VAC) can be confirmed against the relay's coil ordering suffix.
  • You need a 2-pole DPDT contact configuration and your load current per pole stays within the 10 A rating, with appropriate derating for inductive loads.
  • Your panel already uses or can accept an Omron PYF or PTF series plug-in socket matched to the MY2N footprint.
  • A built-in operation indicator (LED or mechanical) is acceptable or preferred for panel diagnostics.
  • You need a relay with listed approvals (UL, CSA) suitable for North American installations.
  • You are maintaining or expanding a panel already standardized on the Omron MY footprint, where like-for-like replacement matters.

If your load exceeds the MY2N's per-pole contact rating, if you need 4 poles, or if panel density constraints point toward slim terminal-block relays, the MY4N, MY-GS series, or Omron G2R-2 may be the correct choice instead — all covered in the variant comparison below.

On this page:

What the Omron MY2N Actually Does in a Control System

The MY2N belongs to Omron's MY Miniature Power Relay series — a long-established line of general-purpose plug-in relays that has been a standard panel-building component for decades. The "2" designates 2 poles, the "N" designates a built-in operation indicator, and the coil voltage appears as a suffix on the ordering code: for example, MY2N 24VDC or MY2N 110/120VAC. This distinction matters immediately when ordering, because two relays with identical body and footprint can behave completely differently depending on the coil suffix.

In practical terms, the MY2N provides electrical isolation and switching between a low-energy control signal — typically a PLC output, a relay logic rung, or a manual switch — and a higher-current load circuit such as a contactor coil, solenoid valve, indicator lamp, or small motor. The DPDT contact configuration (2 Form C) gives engineers two independent switching paths per relay, which is useful for interlock logic, status feedback, or switching two independent load circuits from a single control signal. With up to 10 A switching capacity per pole, the MY2N covers the vast majority of interposing and auxiliary switching duties in industrial control panels without needing a heavier contactor.

The built-in operation indicator — the feature that distinguishes MY2N from the bare MY2 — provides immediate visual confirmation that the coil has energized. In a panel with multiple relays on a DIN rail, this saves meaningful time during commissioning and fault finding: a technician can scan the row and identify immediately which relays are pulled in without needing a meter. Mechanical life is specified up to 50 million operations under manufacturer test conditions, while electrical life at rated load is specified in the hundreds of thousands of operations — figures that reflect the MY series' suitability for intermittent switching duties rather than high-frequency cycling applications.

Where the MY2N Sits in a Typical Panel Architecture

The MY2N occupies the interposing layer between the controller's output signals and the field devices or power circuits it must switch. In a typical automation panel, the component chain looks like this:

  • PLC or relay logic controller — generates a low-current 24 VDC or 120 VAC control signal on its output module.
  • MY2N relay coil — receives the control signal; the coil voltage suffix must match this supply exactly.
  • MY2N contacts (COM, NO, NC) — switch the higher-current load circuit, which may be a contactor coil, solenoid valve, alarm circuit, or pilot light.
  • Omron PYF or PTF series socket — mechanically receives the plug-in relay body and provides screw or spring-clamp wiring terminals for both coil and contact circuits.
  • Field device or load — downstream device powered or switched through the MY2N contact output, protected by appropriate fusing or circuit protection per panel design standards.

Typical Applications and Deployment Scenarios for the Omron MY2N

PLC output interposing is the single most common application for the MY2N in North American industrial panels. Many PLC output modules are rated for low current and cannot directly drive contactor coils, solenoid valves, or other inductive loads without risking I/O module damage. Placing an MY2N between the PLC output and the field load absorbs the inrush, isolates the control voltage from the load voltage, and protects expensive I/O hardware from weld-in or transient damage.

Machine and OEM control panels use the MY2N for auxiliary switching tasks — motor starter enable circuits, solenoid valve control, pilot light circuits, and interlocking logic. OEM panel builders frequently standardize on the MY footprint and specific coil voltages to simplify their bill of materials and service spare parts across a fleet of machines in the field.

Retrofit and maintenance replacement is another high-volume use case. Panels built on Omron MY sockets over the past several decades can accept a current MY2N directly, provided the coil voltage and pole count match. This is where correct variant selection becomes critical: a replacement must match not just the footprint but also the coil voltage suffix, indicator type, and any suppression requirements of the original design.

Signal isolation and alarm switching in process control skids and HVAC panels round out the common deployments. When two circuits with different voltage references must interact without creating a ground loop or voltage conflict, the MY2N's isolated contact output provides the required separation.

Application Typical Deployment
PLC output interposing MY2N 24VDC on DIN rail with PYF socket, coil driven by PLC output, contacts switching contactor coil or solenoid at higher voltage
OEM machine control panel MY2N 110/120VAC standardized across pilot device and motor starter circuits; sockets pre-wired on DIN rail sub-plates
Retrofit/MRO replacement Like-for-like replacement of failed MY2/MY2N in existing socket; coil voltage and indicator type confirmed against original relay body marking
Alarm and status switching MY2N 24VDC used to switch alarm circuits or status feedback signals, with LED indicator providing visual confirmation at relay
HVAC and building automation MY2N 110/120VAC in control panels switching fan contactors, damper actuators, and pilot lights from building controller outputs
Process control signal isolation MY2N contacts providing galvanic isolation between two control voltage domains in water/wastewater or food processing panels

Omron MY2N Specs That Drive the Purchase Decision

Parameter Value (MY2N family) Notes
Contact configuration DPDT (2 Form C, 2-pole) 2 independent NO/NC switching paths per relay
Max contact current per pole 10 A Within specified voltage and load type conditions; derate for inductive loads
Coil voltage options (AC) 110/120 VAC, 220/240 VAC (typical available values) Specified as ordering suffix; confirm frequency requirements for AC coils
Coil voltage options (DC) 12 VDC, 24 VDC (typical available values) Polarity must be observed for DC coils; confirm exact value from control supply
Mechanical life Up to 50 million operations Under manufacturer test conditions; not electrical life at rated load
Electrical life at rated load Hundreds of thousands of operations Resistive load reference; significantly lower under inductive or high-inrush conditions
Mounting style Plug-in via Omron PYF or PTF series socket Socket must be specified separately; confirm pin layout and DIN rail compatibility
Operation indicator Built-in (LED or mechanical, depending on variant) Distinguishes MY2N from base MY2 (no indicator)
Approvals UL, CSA (typical for MY2N family) Confirm specific approvals on variant datasheet for project compliance requirements
Built-in surge suppression None (standard MY2N); diode on MY2N-D2; RC circuit on MY2N-CR Choose suppression variant based on coil type and system requirements

Full technical specifications are available on the product page at LeadTime.ca.

MY2N Variant Comparison: Standard, D2, CR, and Adjacent Models

Model Coil Type Typical Coil Voltages Built-In Suppression Indicator Best Use Case
MY2N (standard) AC or DC 12/24 VDC, 110/120 VAC, 220/240 VAC None LED or mechanical General-purpose; add external suppression if needed
MY2N-D2 DC only 12/24 VDC (typical) Built-in diode (DC coil protection) LED DC control circuits where coil flyback suppression is required without external components
MY2N-CR AC only 110/120 VAC, 220/240 VAC (typical) Built-in RC circuit (AC coil surge reduction) LED AC control circuits where surge suppression on the coil is required without external components
MY2 (reference) AC or DC Same range as MY2N None None Same footprint and contact rating as MY2N but without operation indicator
MY4N AC or DC Same range as MY2N Optional per variant LED or mechanical 4-pole DPDT applications requiring more switched circuits per relay
MY-GS series AC or DC 24 VDC, 110/120 VAC (typical) Optional per variant LED Newer, more compact version of the MY family with improved finger-safe design for modern panel builds
G2R-2 AC or DC 24 VDC, 120 VAC (typical) Optional LED (variant-dependent) Compact transparent-case interposing relay; smaller footprint, commonly used in high-density interposing applications

If the standard MY2N does not include the built-in coil suppression your application needs, the MY2N-D2 (DC) or MY2N-CR (AC) eliminates the need for external suppression components — check current availability and variant stock at LeadTime.ca.

Expert Verdict: Is the Omron MY2N the Right Relay for Your Panel?

The MY2N is a dependable, low-drama relay for standard DPDT control duties. It earns that reputation not through advanced features but through decades of consistent field performance when it is correctly applied. The buyers this relay is genuinely right for are engineers and panel builders maintaining or expanding systems already built around Omron MY sockets, maintenance teams that need like-for-like replacements with strong distributor availability, and designers specifying a well-documented relay for PLC output interposing and moderate-duty load switching. For those buyers, the MY2N delivers predictable mechanical life — up to 50 million operations under manufacturer test conditions — combined with the operational visibility that the built-in indicator provides, and the confidence of UL and CSA approvals that Canadian and North American installations require.

Where the MY2N has real limits: new high-density panel builds where slim terminal-block relays or the more compact MY-GS series would use panel real estate more efficiently; applications involving very high switching frequency, noise sensitivity, or requirements for silent operation where solid-state relays are the correct choice; and load circuits with heavy inrush or motor currents that push beyond the 10 A per-pole contact rating and are better served by contactors or higher-duty switching devices. The honest answer for those applications is to look at the MY-GS series for a modernized plug-compatible option, the G2R-2 for compact interposing in a tighter footprint, or a contactor for anything driving significant motor loads. Sticking with the MY2N in those scenarios to avoid redesign is a compromise that tends to surface later as premature contact wear or field callbacks.

On the procurement side, the MY2N remains an actively stocked relay at specialist industrial distributors globally, with common coil voltages — particularly 24 VDC and 110/120 VAC — typically available from stock. Less common voltages and suppression variants like the MY2N-D2 and MY2N-CR may have longer lead times depending on regional inventory cycles, which is exactly where working with a specialist distributor pays off. A distributor who knows the MY family can confirm the lifecycle status of the specific variant you need, flag if a particular coil voltage is constrained, and suggest a stocked equivalent before you commit to a build schedule. View current Omron MY2N pricing and availability at LeadTime.ca — we ship worldwide and can help confirm the right variant before your order is placed.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

What Engineers Say About the Omron MY2N After Years in the Field

Across forums including r/PLC, r/automation, PLCTalk, PLCS.net, and MrPLC, the Omron MY2N and the broader MY series carry a consistently positive reputation that is best described as trusted rather than exciting. Panel builders and maintenance technicians repeatedly describe these relays as "workhorses" — components that run for years with minimal attention when they are correctly sized and properly wired. The built-in indicator draws specific praise: in a panel row of a dozen relays, being able to scan visually and identify which coils are energized saves real time during fault finding, and technicians familiar with MY series panels mention this as one of the features they notice most when working on panels that lack it. Wide distributor availability in North America also comes up repeatedly as a practical reason to standardize on the MY footprint — when a relay fails on a night shift, the ability to source a replacement quickly from multiple channels matters.

The complaints that appear consistently are not about the core product but about application and selection errors. AC coil humming and slight vibration are the most cited performance issues, typically surfacing when the coil supply voltage is at the low end of the operating range or when the supply quality is poor. Premature contact wear appears in threads where users have pushed contact currents close to or beyond the 10 A rating, or have switched inductive loads without any coil or contact suppression. Both of these failure modes are preventable, and experienced users in these forums make that point clearly — the MY2N performs as expected when applied within its ratings; it is not a relay to stretch to its limits and expect long life.

The ordering confusion around Omron's MY series suffix system is a recurring theme in distributor Q&A sections and forum threads alike. Buyers report receiving MY2 units when they needed MY2N, discovering at installation that the indicator they expected is absent. Others describe ordering the correct model number but the wrong coil voltage — 24 VDC instead of 24 VAC, or 110/120 VAC instead of 220/240 VAC — and finding the mismatch only during commissioning. Socket mismatches also appear: selecting a relay from a different family or a socket from an incompatible series, then discovering the pin layout does not match. These are not obscure edge cases; they appear with enough frequency in community threads to warrant treating the coil voltage suffix, variant suffix, and socket family as the three critical confirmation points before any MY2N order is placed.

Wiring and Installation Overview for the Omron MY2N

  • Confirm the coil voltage suffix on the relay body matches your control supply — for DC versions, observe polarity; AC coil frequency must also be within specification for the selected variant.
  • Mount the matching Omron PYF or PTF socket on the DIN rail before wiring; connect the coil circuit to the coil terminals and the load circuit to the COM, NO, and NC contact terminals per the relay's wiring diagram, keeping high-current load wiring physically separated from coil wiring to minimize noise coupling.
  • Insert the MY2N fully into the socket and confirm it is fully seated — a partially seated relay may appear to function intermittently and is a common source of commissioning faults; use the recommended hold-down clip where vibration is a concern.
  • Energize the coil at rated voltage and verify the operation indicator activates; confirm correct NO and NC contact operation with a meter under no-load conditions before energizing field loads.
  • Verify that load circuits are protected by appropriately rated fuses or circuit breakers, and that external surge suppression is fitted for inductive loads if using the standard MY2N rather than the MY2N-D2 or MY2N-CR suppression variants.

Wrong-Part Prevention Checklist Before You Order the Omron MY2N

Run through each of these checks before placing your order — every mis-order pattern described in the community traces back to at least one item on this list being skipped:

  1. Confirm coil voltage, frequency, and type: AC or DC, and exact value (e.g., 24 VDC, 110/120 VAC, 220/240 VAC) as printed on the relay spec.
  2. Confirm contact configuration: 2-pole DPDT (2 Form C) and that ratings meet both voltage and current requirements for the load.
  3. Verify socket type and pin layout: ensure compatibility with existing or planned socket (e.g., Omron PYF or PTF series) and panel depth.
  4. Decide whether built-in surge suppression is required: standard MY2N vs MY2N-D2 (diode) vs MY2N-CR (RC) and whether LED/mechanical indicator is needed.
  5. Check approvals and standards required by the project (e.g., UL, CSA) and confirm the selected MY2N variant carries them.
  6. Verify environmental limits (ambient temperature, humidity, vibration) against panel and application conditions.
  7. Check switching type: resistive vs inductive loads, inrush conditions, and confirm that contact rating and life are acceptable.
  8. Confirm product status (active vs obsolete) and expected lead time from a distributor serving Canada/North America.

If any item on this list raises a question you cannot answer from the datasheet alone, contact the LeadTime.ca team before ordering — our team can cross-reference your existing socket, confirm variant availability, and help you avoid a costly mis-order.

Frequently Asked Questions

How do I select the correct coil voltage for the Omron MY2N?

The coil voltage is part of the ordering suffix — for example, MY2N 24VDC or MY2N 110/120VAC. Identify your control circuit supply voltage and type (AC or DC) from your schematics or by measuring at the control terminals, then select the MY2N suffix that matches exactly. AC and DC coils of the same nominal voltage are not interchangeable, and applying the wrong coil voltage will either prevent the relay from picking up or damage the coil.

What is the difference between MY2N, MY2N-D2, and MY2N-CR?

MY2N is the standard variant with a built-in operation indicator and no integrated surge suppression. MY2N-D2 adds a built-in diode across a DC coil, which suppresses the flyback voltage spike when the coil de-energizes — eliminating the need for an external suppression diode in DC control circuits. MY2N-CR includes a built-in RC circuit for AC coils, providing surge reduction for AC applications. If your control circuit drives inductive loads or is noise-sensitive, choosing the appropriate suppression variant at the relay level is cleaner than adding external components.

Can I replace an older Omron MY2 relay with an MY2N or an MY-GS without rewiring the socket?

An MY2N is a direct footprint replacement for an MY2 in the same socket — the only difference is the addition of the built-in operation indicator, which is additive and does not affect wiring. The MY-GS series has a modernized, more compact form factor and may not be a direct drop-in for an existing MY socket without verifying pin compatibility and socket type. Always check the replacement relay's pin layout against the installed socket before ordering a large quantity for a retrofit.

Which socket should I use with an Omron MY2N for DIN-rail mounting?

Omron's PYF and PTF series sockets are the standard match for the MY2N footprint. PYF sockets use screw-clamp terminals and are the traditional choice for most panel wiring; PTF sockets offer push-in spring-clamp terminals for faster wiring. Both mount on standard DIN rail. Confirm the socket series designation against the MY2N pin layout in the datasheet before ordering, and specify hold-down clips for high-vibration environments.

Why does my Omron MY2N hum or chatter, and does it indicate imminent failure?

Humming and buzzing on AC coil versions are most commonly caused by coil supply voltage at the low end of the operating range, poor supply quality, or AC frequency issues rather than a fault in the relay itself. Chattering — rapid make-and-break of the contacts — is typically a symptom of borderline coil voltage rather than a worn relay. Check the supply voltage at the coil terminals when the relay should be energized and confirm it meets the relay's rated operating voltage. Persistent chattering that does not resolve with a stable supply voltage may indicate a failing coil and warrants relay replacement.

How close to the 10 A contact rating can I run MY2N contacts when switching inductive loads?

Inductive loads — contactor coils, solenoid valves, motor starter coils — generate voltage spikes at de-energization that significantly accelerate contact erosion compared to resistive loads. Running contacts at or near the 10 A rated current on inductive loads without suppression substantially reduces electrical life from the rated hundreds of thousands of operations at resistive rated load. A conservative design practice is to apply a meaningful derating margin on inductive circuits and to use the MY2N-D2 or MY2N-CR suppression variants, or external RC/varistor suppression, to protect contacts and extend service life.

Why Order the Omron MY2N Through LeadTime.ca

  • LeadTime.ca ships worldwide — whether you are in Canada, the United States, or sourcing internationally, we process and ship Omron MY2N orders globally.
  • Variant confirmation support: our team can help you verify coil voltage suffix, socket compatibility, and suppression variant (MY2N-D2 vs MY2N-CR vs standard) before you commit to an order.
  • Lifecycle and availability checks: we can confirm active product status and flag if a specific variant has constrained lead times, helping you plan around procurement risk before it becomes a production delay.
  • Volume pricing available: contact us for project quantities, MRO stocking arrangements, or multi-line orders that include sockets and accessories alongside the relay itself.

At-a-Glance Summary

  • Product: Omron MY2N — MY Miniature Power Relay, plug-in, 2-pole DPDT, with built-in operation indicator.
  • Contact configuration: 2 Form C (DPDT); maximum contact current 10 A per pole within specified conditions.
  • Coil voltages available: 12 VDC, 24 VDC (DC); 110/120 VAC, 220/240 VAC (AC) — coil voltage is part of the ordering suffix.
  • Built-in suppression variants: MY2N-D2 (diode, DC coil); MY2N-CR (RC circuit, AC coil); standard MY2N has no built-in suppression.
  • Mechanical life: up to 50 million operations under manufacturer test conditions.
  • Electrical life at rated load: hundreds of thousands of operations on resistive loads; significantly less on inductive loads without suppression.
  • Socket compatibility: Omron PYF or PTF series — must be specified separately and confirmed against MY2N pin layout.
  • Approvals: UL, CSA (typical for MY2N family) — confirm specific approvals on variant datasheet.
  • Primary use cases: PLC output interposing, OEM control panels, machine switching, MRO replacement in existing MY-socket panels.
  • Key ordering risk: incorrect coil voltage suffix (AC vs DC, wrong nominal value) and socket family mismatch are the most common mis-order patterns.

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