Omron MY4N-CR-GS 220/240VAC Miniature Power Relay Guide
The Omron MY4N-CR-GS 220/240VAC miniature power relay is a 4-pole plug-in relay built for industrial control circuits that operate from 220 to 240 VAC coil voltage. It is part of Omron’s MY relay family and is commonly used in control panels where clear status indication, compact installation, and dependable multi-circuit switching are required.
Technical Overview
This model uses a 4PDT contact form, meaning four independent changeover contacts are operated by one coil. The relay includes an LED operation indicator, plug-in terminals, single contacts, and a built-in CR circuit for coil surge absorption. The CR circuit is important in AC control environments because it helps reduce electrical noise generated when the coil is de-energized.
The contact material is listed as gold-clad silver alloy on related Omron MY specifications. This contact design supports reliable switching in control circuits while maintaining suitable performance across common industrial loads. The model is intended for socket mounting, which supports cleaner panel construction and easier replacement during maintenance.
Why the CR Surge Absorption Matters
In AC relay coils, voltage transients can affect nearby electronic devices, PLC inputs, timers, sensors, and signal wiring. The built-in CR coil surge killer helps manage these transients at the relay coil. This makes the Omron MY4N-CR-GS 220/240VAC relay a practical choice where electromagnetic noise reduction is part of the panel design strategy.
Application Areas
This relay is often used in industrial automation panels, HVAC control circuits, packaging equipment, pump panels, lighting control systems, and general machinery. Its 220/240 VAC coil rating matches many European and global control voltage standards, making it useful when the control circuit is supplied directly from an AC panel voltage.
Important Selection Points
Before using the relay, confirm the exact coil voltage, contact load, load category, socket type, ambient temperature, and wiring method. Inductive loads require extra care because they can produce arcs and electrical stress during switching. When the relay is used with PLCs or sensitive electronics, the built-in CR function can contribute to improved system reliability.
Omron MY4N-CR-GS 220/240VAC For additional Omron product information, visit more information about Omron.
Omron MY4N-CR-GS 220/240VAC FAQ
What is the Omron MY4N-CR-GS 220/240VAC relay designed for?
It is designed for control panels and automation systems that require a 220/240 VAC coil relay with four changeover contacts and built-in coil surge absorption.
Omron MY4N-CR-GS 220/240VAC What does the CR function do?
The CR circuit helps suppress coil-generated surge voltage in AC circuits. This can reduce electrical noise and support cleaner operation in panels that include electronic control devices.
Is this relay plug-in type?
Yes. It uses plug-in terminals and is installed with a compatible socket, making replacement easier and reducing the need to disturb field wiring.
Does it have a visual indicator?
Yes. The relay includes an LED operation indicator, allowing users to confirm energized status quickly during inspection or troubleshooting.
Can this relay switch DC loads?
It can switch suitable DC loads within its contact ratings, but the coil itself is rated for 220/240 VAC. Always verify contact load limits before applying DC loads.
When should this model be chosen over a standard MY4N relay?
It is a strong choice when the same 4PDT relay function is needed but the design also benefits from built-in CR coil surge suppression.