Omron MY4IN-GS-R AC48 Power Relay: Technical Guide, Applications and Installation
Ask a panel builder which components they trust after midnight when nobody is around to troubleshoot, and you will hear brands like Omron come up immediately. The MY4IN-GS-R AC48 Power Relay is a prime example of why — designed for remote control panels, built to keep runningat 48V AC when it matters most.
For projects where sensing and switching decisions need to be made together, Omron’s Omron Sensor products are a natural companion to this unit. Both families are built to the same quality standards and documented to the same CE and UL requirements, which simplifies the declaration of conformity process.
Omron MY4IN-GS-R AC48 — Product Profile
The Omron MY4IN-GS-R AC48 is a Power Relay rated at 48V AC, built to handle remote control panels reliably over a long service life. Key engineering features include gs rail compatible, retaining clip, led indicator, and the unit mounts via gs din rail socket.
On the bench, gs rail compatible, retaining clip, led indicator stands out immediately. The 48V AC rating align with the control voltage standards used across manufacturing, building automation, and process control industries, reducing the need for additional conversion stages.
Technical Data Summary
The table below summarises the main technical parameters of the Omron MY4IN-GS-R AC48. For full specifications, always refer to the official Omron product datasheet, as application-specific derating may apply.
| Parameter | Value |
|---|---|
| Product Type | Power Relay |
| Coil / Operating Voltage | 48V AC |
| Contacts / Channels | 4-pole (4PDT) |
| Contact Current | 10 A |
| Key Features | GS rail compatible, retaining clip, LED indicator |
| Mounting | GS DIN rail socket |
| Mechanical Lifetime | 10 million mechanical operations |
| Operating Temperature | -25 °C to +70 °C |
| Compatible Socket | GS series socket |
Where This Product Fits
The Omron MY4IN-GS-R AC48 Power Relay is commonly specified for the following applications:
- Remote control panels
- Machine automation 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 MY4IN-GS-R AC48 is designed with exactly those conditions in mind.
The Omron MY4IN-GS-R AC48 is designed to be used with GS series socket. Using a non-compatible socket model can compromise contact pressure and reduce overall service life, so always verify socket compatibility before ordering.
Practical Installation Tips
One underrated aspect of working with Omron components like the MY4IN-GS-R AC48 Power Relay is the consistency of the mounting system. If you have installed any other unit from the same family, the process is identical — same rail, same socket dimensions, same terminal layout. That repeatability genuinely speeds up panel assembly in high-volume projects.
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.
Performance You Can Rely On
From a total cost of ownership perspective, the Omron MY4IN-GS-R AC48 Power Relay makes financial sense even when its purchase price is higher than alternatives. Reduced unplanned downtime, fewer replacement cycles, and lower maintenance labour costs add up to a clear advantage over the operational lifetime of a machine.
Frequently Asked Questions
What is the difference between the Omron MY4IN-GS-R AC48 and a mechanical contactor?
The Omron MY4IN-GS-R AC48 Power 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 MY4IN-GS-R AC48, it offers faster switching, longer life, and a smaller footprint than a contactor.
How does temperature affect the Omron MY4IN-GS-R AC48?
Like all electromechanical devices, performance can be affected at the extremes of the operating temperature range. The Omron MY4IN-GS-R AC48 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 MY4IN-GS-R AC48 units side by side on a DIN rail?
Yes. The Omron MY4IN-GS-R AC48 Power 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 MY4IN-GS-R AC48 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 MY4IN-GS-R AC48 to confirm whether this feature is available.
How long is the warranty on the Omron MY4IN-GS-R AC48?
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.