Omron LY2N 200/220VAC General Purpose Relay Technical Guide

The Omron LY2N 200/220VAC general purpose relay is a plug-in electromechanical relay designed for industrial switching and control applications that use higher AC control voltages. It is part of the Omron LY bi-power relay family, a relay series widely used in control cabinets, machine systems, electrical panels, and automation equipment.

This model provides a DPDT contact configuration, giving users two independent changeover contacts in one relay. That makes it suitable for applications where two separate circuits must be switched at the same time, or where one contact performs the main switching function while the other provides auxiliary feedback.

Technical Characteristics

The Omron LY2N 200/220VAC general purpose relay uses a 200/220 VAC coil. Omron specifies coil ratings for both 50 Hz and 60 Hz operation, including 200 VAC and 220 VAC supply conditions. This makes the relay suitable for equipment designed around higher-voltage AC control circuits.

The relay includes an LED operating indicator, which provides immediate visual feedback when the coil is energized. This feature is especially useful in industrial control panels, where fast diagnosis can reduce downtime. The relay also uses Ag alloy contacts and plug-in terminals, supporting practical installation and reliable switching in suitable applications.

Contact Ratings and Load Behavior

According to Omron’s data, this relay supports 10 A resistive load ratings at 110 VAC and 24 VDC. It also has specified inductive load ratings, including 7.5 A at 110 VAC with a power factor of 0.4 and 5 A at 24 VDC with an L/R value of 7 ms. These details are important because inductive loads place more stress on relay contacts than purely resistive loads.

When switching solenoids, contactor coils, small motors, transformers, or other inductive devices, users should consider arc suppression, switching frequency, and expected service life. Correct application improves reliability and helps protect both the relay contacts and the connected equipment.

Where the Omron LY2N 200/220VAC General Purpose Relay Is Used

This relay is commonly used in industrial control panels, motor control systems, machinery, HVAC equipment, process automation, pump control, lighting control, and auxiliary switching circuits. Its 200/220 VAC coil makes it suitable for systems where the control circuit is powered from higher AC voltage rather than low-voltage DC.

The DPDT design adds flexibility in panel design. One pole may switch a control circuit, while the second pole may trigger an alarm, send feedback to a controller, or activate an indicator. This helps simplify wiring and reduce the number of separate components needed in the panel.

Plug-In Installation Advantage

Plug-in terminals are a key advantage of the Omron LY2N 200/220VAC general purpose relay. When used with a compatible socket, the relay can be replaced quickly during maintenance. This helps reduce service time and avoids unnecessary rewiring.

For facilities that maintain many control panels, socket-based relays make standardization easier. Technicians can keep replacement relays available and quickly restore operation when a relay needs to be changed.

Selection Guidance

Before choosing this relay, confirm the coil voltage, supply frequency, contact rating, load type, socket compatibility, ambient temperature, and applicable safety requirements. Since this model uses a higher AC coil voltage, correct wiring and insulation practices are essential.

For related industrial relay products, see Omron automation components.

FAQ

What is the Omron LY2N 200/220VAC general purpose relay used for?

It is used for switching and control functions in industrial equipment, control panels, machinery, HVAC systems, pump controls, and automation circuits that use 200/220 VAC control voltage.

What is the contact configuration?

The relay has a DPDT contact form. This means it includes two independent changeover contacts that can switch two circuits at the same time.

Does this model include an LED indicator?

Yes. The relay includes an LED operating indicator, allowing users to see when the coil is energized.

Why would a 200/220 VAC coil be selected?

It is selected when the control circuit is designed around higher AC voltage. This is common in certain industrial panels and legacy machine systems.

Can it be used with inductive loads?

Yes, within the specified inductive load ratings. However, inductive loads may require suppression methods to reduce contact wear and electrical noise.

Is the relay socket-mounted?

Yes. The relay uses plug-in terminals and is intended for use with compatible sockets, allowing easier replacement and maintenance.

What contact material does it use?

The Omron LY2N 200/220VAC general purpose relay uses Ag alloy contacts, which are common in industrial relay applications.

What should be checked before replacing an existing relay?

Check the exact coil voltage, terminal layout, contact form, load rating, socket type, and whether the original relay has an LED indicator or other special features.