Omron MY3N 100/110VDC Miniature Power Relay Technical Guide
The Omron MY3N 100/110VDC miniature power relay is a compact industrial relay developed for control panels, automation systems, and auxiliary switching applications that require reliable DC coil operation. As part of the trusted Omron MY relay family, this model combines dependable switching performance with practical maintenance features such as plug-in mounting and LED operation indication.
General Product Overview
This relay uses a 3PDT contact configuration, meaning it contains three independent changeover contacts in one compact housing. The relay is widely used in machine control systems, industrial automation cabinets, signaling equipment, alarm systems, and process control environments where several circuits must be controlled simultaneously from a single relay coil.
The transparent housing allows technicians to visually inspect relay movement during operation. Combined with the integrated LED indicator, the relay supports faster troubleshooting and simplified maintenance in dense control panels.
Electrical Characteristics and Performance
The Omron MY3N 100/110VDC miniature power relay is designed for general purpose switching duties. It supports resistive load ratings up to 5 A at 220 VAC and 5 A at 24 VDC. For inductive loads such as solenoids or electromagnetic devices, lower ratings should be applied to protect relay life and maintain reliable operation.
The coil is designed specifically for 100/110 VDC operation. Typical coil current values are approximately 9.1 mA at 100 VDC and 10 mA at 110 VDC. Coil resistance is around 11,000 ohms. These values help engineers calculate total control circuit load and verify compatibility with DC power supplies.
Socket Compatibility and Installation
The relay is built for plug-in socket installation and supports several Omron socket families including PYF11A, PY11, PY11QN, PY11QN2, and related 11-pin socket models. Socket mounting is extremely useful in industrial maintenance environments because relays can be replaced without disconnecting panel wiring.
This installation style also supports organized panel layouts, easier testing procedures, and reduced downtime during service operations. In facilities where uptime is critical, plug-in relays remain a practical and widely preferred solution.
Applications in Industrial Control Systems
The Omron MY3N 100/110VDC miniature power relay is commonly used in DC-powered automation systems, machine interfaces, industrial alarm circuits, signal transfer applications, interlocking logic, auxiliary contact expansion, and control signal isolation. Its three changeover contacts provide excellent flexibility for engineers designing multi-function control circuits.
For additional relay information and industrial automation products, visit Omron relay resources.
Advantages of the MY3N Relay Series
- Compact plug-in industrial relay design
- 3PDT contact arrangement for multi-circuit switching
- LED operation indicator for fast diagnostics
- Transparent protective housing
- Reliable performance in automation panels
- Compatible with multiple Omron socket types
- Easy relay replacement during maintenance
FAQ
What is the Omron MY3N 100/110VDC miniature power relay used for?
This relay is mainly used in industrial control systems where a DC control voltage is available. It helps switch multiple circuits simultaneously in automation panels, alarm systems, machine controls, and signaling applications.
What does 3PDT mean?
3PDT stands for three pole double throw. The relay includes three separate changeover contact sets, allowing one coil signal to switch three independent electrical circuits at the same time.
Does the relay include a visual indicator?
Yes. The relay includes a built-in LED indicator that shows when the coil is energized. This makes troubleshooting faster and helps technicians confirm relay operation immediately.
Why are plug-in relays commonly used in industrial panels?
Plug-in relays simplify maintenance and reduce downtime. The relay can be removed and replaced quickly without disconnecting wiring from the socket base.
Can this relay switch inductive loads?
Yes, but inductive loads require careful consideration because they generate electrical stress during switching. Proper load ratings and protective circuits should always be checked before installation.