Omron MY4ZN 110/120VAC (S) Miniature Power Relay

The Omron MY4ZN 110/120VAC (S) miniature power relay is designed for industrial automation systems that require reliable multi-contact switching with a 110/120VAC control coil. This compact plug-in relay is part of Omron’s established MY relay series and is commonly selected for machine control, panel interfaces, and auxiliary switching applications.

Its 4PDT contact arrangement enables several circuits to be switched simultaneously from one relay operation. Combined with bifurcated contacts and LED indication, the relay supports dependable performance in demanding industrial environments.

Technical Overview

The Omron MY4ZN 110/120VAC (S) miniature power relay includes four changeover contact sets that operate together when the coil is energized. This design is especially useful in applications where one control signal must activate multiple independent outputs.

Bifurcated contact construction helps improve signal reliability by providing dual contact surfaces. This supports stable switching performance in low-level control circuits and interface applications.

The relay also includes visual operation indication that assists maintenance personnel during diagnostics and commissioning procedures.

Applications in Industrial Systems

This relay is frequently used in industrial control cabinets, HVAC systems, packaging equipment, conveyor systems, and machine automation panels. Its 110/120VAC coil allows compatibility with control systems that use standard AC control voltage.

Engineers often integrate this relay into interlock circuits, motor control logic, alarm systems, and PLC output interfaces. The compact design supports organized cabinet layouts while still providing four independent contact outputs.

Because the relay uses a plug-in socket configuration, replacement procedures are simpler compared to permanently wired relay systems.

For more industrial automation products and relay technologies, visit Omron.

Panel Design Advantages

The Omron MY4ZN 110/120VAC (S) miniature power relay supports efficient panel design because multiple switching tasks can be consolidated into a single relay body. This can help reduce wiring complexity and simplify maintenance planning.

Its durable switching mechanism also contributes to long-term reliability in industrial operating conditions.

Frequently Asked Questions

What is the Omron MY4ZN 110/120VAC (S) miniature power relay used for?

This relay is used for industrial control applications where multiple circuits must be switched simultaneously using a 110/120VAC coil.

Does the relay have LED indication?

Yes. The relay includes LED indication for easier operational status monitoring.

What does 4PDT mean?

4PDT means four-pole double-throw, allowing four independent changeover circuits.

Can the relay be used in HVAC systems?

Yes. The relay is commonly used in HVAC control panels and building automation systems.

Why are bifurcated contacts beneficial?

Bifurcated contacts improve switching consistency and electrical reliability in low-current control circuits.

Is the relay suitable for industrial automation panels?

Yes. The relay is designed specifically for industrial automation and machine control applications.