Omron LY2 24VAC Socketed Relay: Technical Guide, Applications and Installation
There is a reason certain relay and switch models appear in panel after panel across different industries: they simply work. The Omron LY2 24VAC Socketed Relay is one of those models— it operates at 24V AC and has become a go-to choice for control panels applications.
Many engineers working with this product also specify Omron Omron Sensor solutions on the same project. The shared ecosystem means signal levels, cable standards, and mounting accessories align across product families — a practical advantage that saves time during panel design and commissioning.
About the Omron LY2 24VAC Socketed Relay
The Omron LY2 24VAC is a Socketed Relay rated at 24V AC, built to handle control panels reliably over a long service life. Key engineering features include arc barrier, compact body, wide socket compatibility, and the unit mounts via socket + din rail or pcb.
The engineering case for the Omron LY2 24VAC Socketed Relay rests on a clear set of advantages: arc barrier, compact body, wide socket compatibility. Operating voltage of 24V AC slots neatly into most European and global panel designs.
Specifications at a Glance
The table below summarises the main technical parameters of the Omron LY2 24VAC. For full specifications, always refer to the official Omron product datasheet, as application-specific derating may apply.
| Parameter | Value |
|---|---|
| Product Type | Socketed Relay |
| Coil / Operating Voltage | 24V AC |
| Contacts / Channels | 2-pole (DPDT) |
| Contact Current | 10 A |
| Key Features | Arc barrier, compact body, wide socket compatibility |
| Mounting | Socket + DIN rail or PCB |
| Mechanical Lifetime | 50 million mechanical operations |
| Operating Temperature | -25 °C to +70 °C |
| Compatible Socket | PF083A / PTF08A |
Industry Use Cases
The Omron LY2 24VAC Socketed Relay is commonly specified for the following applications:
- Control panels
- Machine automation
- Building management systems
Across these use cases, the consistent thread is a need for dependable switching over a large number of operations, often in environments where an unplanned fault would create significant disruption. The Omron LY2 24VAC is designed with exactly those conditions in mind.
The Omron LY2 24VAC is designed to be used with PF083A / PTF08A. Using a non-compatible socket model can compromise contact pressure and reduce overall service life, so always verify socket compatibility before ordering.
Installation Checklist
The Omron LY2 24VAC Socketed Relay follows standard DIN rail mounting practice. Before inserting the unit into its socket or fixing it to the rail, always verify the circuit is fully de-energised. Check that cable cross-sections are appropriate for the load, and after commissioning, mark the panel clearly with the device type and rated voltage for future maintenance reference.
For ongoing maintenance, periodically inspect for contact discolouration, check terminal screws for loosening, and look for any signs of heat stress on the housing. Catching these early avoids the much larger cost of an unplanned production stop.
Omron LY2 24VAC: Long-Term Value
Omron’s reputation in automation did not come from clever advertising. It came from decades of components performing reliably in factories, warehouses, and process plants around the world. The LY2 24VAC Socketed Relay is a current embodiment of that engineering culture — nothing superfluous, nothing compromised.
Frequently Asked Questions
What is the difference between the Omron LY2 24VAC and a mechanical contactor?
The Omron LY2 24VAC Socketed Relay is designed for panel-level signal and load switching at the current ratings specified. A contactor is built for direct motor starting at higher currents. For applications within the rated capacity of the Omron LY2 24VAC, it offers faster switching, longer life, and a smaller footprint than a contactor.
How does temperature affect the Omron LY2 24VAC?
Like all electromechanical devices, performance can be affected at the extremes of the operating temperature range. The Omron LY2 24VAC is rated for use across a defined ambient temperature range — consult the datasheet for precise limits and any derating requirements at elevated temperatures.
Can I mount multiple Omron LY2 24VAC units side by side on a DIN rail?
Yes. The Omron LY2 24VAC Socketed Relay is designed for standard DIN rail assembly with adjacent units. Ensure adequate total load current is within the rail and busbar capacity, and that enclosure ventilation is sufficient for the combined heat dissipation.
Does the Omron LY2 24VAC include a test facility?
Depending on the model variant, some Omron relay sockets include a manual test button or push-to-test function. Check the specific socket model specified for the Omron LY2 24VAC to confirm whether this feature is available.
How long is the warranty on the Omron LY2 24VAC?
Omron provides a standard 12-month manufacturer warranty on products purchased through authorised distributors. Extended warranty options may be available — contact your local Omron distributor for details.