Omron MY2-02 220VAC/240 Miniature Power Relay Guide
The Omron MY2-02 220VAC/240 miniature power relay is a compact two-pole relay designed for control panels, automation equipment, printed circuit board assemblies, and general-purpose switching circuits. It belongs to Omron’s MY series, a widely used family of miniature power relays known for dependable switching performance in industrial and commercial electrical systems.
Technical Overview
This relay uses a 220/240 VAC coil and a DPDT contact arrangement, also described as two Form C contacts. The MY2-02 version is built with PCB terminals, making it suitable for board-level integration where a relay must be mounted directly onto a circuit board rather than inserted into a plug-in socket. Its contact material is silver alloy, commonly selected for stable conductivity in general-purpose relay applications.
According to Omron’s published product data, the relay supports resistive load switching such as 220 VAC at 5 A and 24 VDC at 5 A. For inductive loads, ratings are lower because motors, solenoids, and coils generate inrush and back electromotive force. This makes load type a critical selection factor when engineers specify the Omron MY2-02 220VAC/240 miniature power relay for automation circuits.
Where This Relay Is Commonly Used
The MY2-02 220VAC/240 is often selected for control logic, signal isolation, interposing relay panels, machine control boards, and auxiliary switching circuits. Its 220/240 VAC coil is useful in systems where the control voltage is already available from mains-derived control circuits. The PCB terminal format helps reduce wiring complexity and supports repeatable manufacturing in equipment assemblies.
Design Considerations
When using this relay, designers should review coil voltage, contact load, terminal layout, insulation requirements, and expected electrical life. The relay should not be chosen only by matching voltage; the real load profile matters. A resistive heater, pilot lamp, contactor coil, small motor, or DC inductive load may require different protection methods. For inductive loads, surge suppression may improve reliability and reduce contact wear.
Omron MY2-02 220VAC/240 For related Omron relay information, visit Omron relay information.
Omron MY2-02 220VAC/240 FAQ
What type of relay is the Omron MY2-02 220VAC/240?
It is a miniature power relay with a DPDT contact form and PCB terminals. It is intended for general-purpose control and switching applications.
Omron MY2-02 220VAC/240 Is it suitable for PCB mounting?
Yes. The MY2-02 version uses PCB terminals, so it is intended for direct board mounting rather than standard plug-in socket mounting.
What does DPDT mean?
DPDT means double pole double throw. The relay can switch two separate circuits, and each pole can change between normally open and normally closed paths.
Can this relay switch inductive loads?
Yes, but the rated current is lower for inductive loads than for resistive loads. Designers should check the exact load and consider suppression components where needed.
Why choose a 220/240 VAC coil relay?
A 220/240 VAC coil is useful when the control circuit already operates at that voltage, reducing the need for an additional low-voltage control supply.