Omron LY4N 200/220VAC Relay Technical Overview
The Omron LY4N 200/220VAC relay is a plug-in general-purpose relay designed for industrial control panels and automation circuits that require a 200/220 VAC coil. It belongs to the Omron LY series and features a 4PDT contact arrangement, LED operation indicator, closed cover design, and socket-based mounting.
This relay is suitable for systems where AC control voltage is used to operate several switching paths at the same time. Its 4-pole structure allows coordinated switching across multiple circuits, making it practical for machine control, interlocking circuits, signal transfer, alarm systems, and panel-based automation.
For more details about Omron, you can review related industrial automation and relay components.
Key Technical Specifications
The Omron LY4N 200/220VAC relay uses an AC coil rated for 200 VAC and 220 VAC. Omron lists the coil current as 11.5 mA at 200 VAC 50 Hz, 9.8 mA at 200 VAC 60 Hz, 13.1 mA at 220 VAC 50 Hz, and 11.2 mA at 220 VAC 60 Hz. The coil resistance is specified as 6,700 ohms.
The relay has a 4PDT contact form. This means it includes four changeover contact sets that operate together when the coil is energized. The contact method is single contact, and the contact material is silver alloy.
For resistive loads, the relay is rated at 10 A at 110 VAC and 10 A at 24 VDC. For inductive loads, it is rated at 7.5 A at 110 VAC with a power factor of 0.4 and 5 A at 24 VDC with L/R of 7 ms.
LED Operation Indicator
The built-in LED indicator helps identify relay operation status quickly. In industrial panels, this is especially useful during maintenance and fault diagnosis. When the coil is energized, the LED provides visible confirmation, helping technicians distinguish control signal issues from load-side wiring problems.
Installation and Compatible Sockets
The Omron LY4N 200/220VAC relay is designed for socket mounting. Compatible socket options include PTF-14-PU-L, PTF14A, PTFZ-14-E, PT14, PT14QN, and PT14-0. This plug-in structure supports cleaner panel wiring and simplifies relay replacement during maintenance.
Because the relay is socket mounted, it is well suited for control cabinets where components may need to be replaced quickly. The approximate relay weight is 70 g, and the closed cover helps protect the internal relay structure in normal panel environments.
Operating Environment
The relay is rated for operation between -25°C and 40°C, with no freezing or condensation. The operating humidity range is 5% to 85%. These values make it appropriate for many standard industrial control panel environments, provided the enclosure design and ambient conditions remain within specification.
Typical Applications
The Omron LY4N 200/220VAC relay can be used in AC control circuits, machine automation panels, auxiliary switching circuits, interlock systems, alarm logic, and industrial signal switching. Its 200/220 VAC coil makes it suitable for installations where higher AC control voltage is already present.
FAQ
What is the Omron LY4N 200/220VAC relay?
It is a plug-in general-purpose relay with a 200/220 VAC coil, 4PDT contacts, LED indicator, and socket mounting structure.
What does the LED indicator do?
The LED indicator shows when the relay coil is energized. This helps with troubleshooting and visual status checks inside control panels.
What is the contact configuration?
The relay has a 4PDT contact configuration, meaning it can switch four independent changeover circuits at the same time.
What is the rated carry current?
The relay supports 10 A resistive load ratings under the specified AC and DC conditions.
Can this relay be used in DC circuits?
The coil is AC rated, but the contacts can switch suitable DC loads within the relay’s contact ratings.
Is it suitable for industrial panels?
Yes. Its plug-in design, LED indicator, 4PDT contacts, and socket compatibility make it suitable for many industrial control panel applications.
Which sockets are compatible?
Compatible options include PTF-14-PU-L, PTF14A, PTFZ-14-E, PT14, PT14QN, and PT14-0.