Omron MY4ZN 24VAC (S) Miniature Power Relay
The Omron MY4ZN 24VAC (S) miniature power relay is a compact industrial relay engineered for automation systems that operate with a 24VAC control voltage. This relay belongs to Omron’s MY series and is designed to provide dependable switching performance in industrial control panels, HVAC systems, machine automation equipment, and auxiliary switching circuits.
Its 4PDT contact arrangement enables several independent circuits to be controlled simultaneously from one relay coil. Combined with bifurcated contacts and visual operation indication, the relay supports stable electrical operation in demanding industrial environments.
Technical Characteristics of the Omron MY4ZN 24VAC (S) Miniature Power Relay
The relay operates using a 24VAC coil, making it compatible with many low-voltage AC control systems commonly found in building automation and industrial equipment. The compact housing allows efficient integration into crowded control cabinets where installation space is limited.
Bifurcated contact technology helps improve switching consistency by dividing each contact point into dual surfaces. This design can support more reliable switching behavior in low-current signal applications and control circuits.
The relay includes four independent changeover contacts, allowing multiple outputs to switch simultaneously. This can simplify control logic design in automation systems that require coordinated switching operations.
LED indication and mechanical operation indicators provide clear visual feedback during maintenance and troubleshooting procedures. Technicians can quickly verify relay status directly from the front of the device.
Common Industrial Applications
The Omron MY4ZN 24VAC (S) miniature power relay is widely used in HVAC systems, industrial control cabinets, alarm systems, conveyor equipment, packaging machines, and machine interface circuits.
Because many building automation systems rely on 24VAC control voltage, this relay is often selected for fan controls, heating systems, ventilation equipment, and auxiliary switching functions.
Engineers also integrate the relay into interlock systems, signal routing circuits, and PLC interface applications where multiple contact outputs are required.
For additional details about industrial relay technologies and compatible automation products, visit Omron.
Benefits in Automation Panels
The Omron MY4ZN 24VAC (S) miniature power relay supports organized panel design because multiple switching tasks can be combined into a single compact relay body. This may help reduce wiring complexity and simplify long-term maintenance planning.
Its plug-in socket configuration also contributes to easier servicing because relays can be replaced without disconnecting field wiring from the socket base.
Frequently Asked Questions
What is the Omron MY4ZN 24VAC (S) miniature power relay used for?
This relay is used for industrial and building automation systems that require multiple switching contacts with a 24VAC control coil.
What does 4PDT mean?
4PDT stands for four-pole double-throw, meaning the relay contains four independent changeover contacts.
Why are bifurcated contacts beneficial?
Bifurcated contacts help improve switching reliability by using dual contact surfaces for electrical continuity.
Does the relay include operation indication?
Yes. The relay includes both LED and mechanical indication for easier diagnostics and maintenance.
Can this relay be used in HVAC systems?
Yes. The 24VAC coil makes the relay suitable for HVAC and building automation control applications.
Is the relay suitable for industrial control panels?
Yes. The relay is designed specifically for industrial automation, control cabinets, and machine interface systems.