Omron MY2 48VDC (S) Miniature Power Relay: Specification-Based Guide

The Omron MY2 48VDC (S) miniature power relay is a two-pole plug-in electromechanical relay developed for industrial control, automation panels, and auxiliary switching circuits. It uses a 48 VDC coil and a DPDT contact structure, giving panel builders a compact and serviceable solution for control logic and load switching.

Main Technical Features

This relay is designed with plug-in terminals and a closed-cover relay body. Omron lists the MY2 DC48 version as a miniature power relay with a 48 VDC coil, DPDT contact form, single contacts, silver contact material, and plug-in terminal construction. The listed coil current is 17.6 mA, while the coil resistance is 2,725 ohms. The operate voltage is specified as 80 percent maximum of rated voltage.

For contact performance, Omron lists rated loads of 220 VAC 5 A for resistive loads, 220 VAC 2 A for inductive loads, 24 VDC 5 A for resistive loads, and 24 VDC 2 A for inductive loads. These values make the relay suitable for many control applications where the relay is switching signals, control loads, pilot devices, or low-power industrial circuits.

Practical Application Areas

The Omron MY2 48VDC (S) miniature power relay is commonly used in DC control systems, PLC output circuits, interposing relay applications, alarm circuits, process equipment, electrical cabinets, and automation machinery. A 48 VDC coil is often preferred in systems where low-voltage DC control is already available and electrical separation between the control signal and switched load is required.

Why Engineers Use Plug-In Relays

Plug-in relays simplify maintenance. If a relay reaches the end of its service life or needs to be checked during troubleshooting, it can usually be removed from the socket without disturbing the wiring. This is valuable in production environments where downtime must be minimized and component replacement must be straightforward.

Design Considerations

Before selecting this relay, the engineer should confirm that the 48 VDC coil supply is stable and that the switched load remains within the rated electrical limits. Inductive loads, such as solenoids and contactor coils, may require additional suppression depending on the circuit design. Socket selection should also match the panel wiring method and installation standard.

For more information about compatible Omron components, visit Omron relay and automation products.

Frequently Asked Questions

What is the Omron MY2 48VDC (S) miniature power relay?

It is a compact plug-in electromechanical relay with a 48 VDC coil and DPDT contacts, used in automation and control panel circuits.

Omron MY2 48VDC (S) What contact form does this relay use?

It uses a DPDT contact form, meaning it has two changeover contact sets controlled by one coil.

What is the coil rating of the Omron MY2 48VDC (S)?

The relay uses a 48 VDC coil. Omron lists the MY2 DC48 coil current as 17.6 mA and coil resistance as 2,725 ohms.

Can this relay switch both AC and DC loads?

Yes. It can switch specified AC and DC loads, but the exact current rating depends on whether the load is resistive or inductive.

Is this relay suitable for PLC interface circuits?

Yes. It is commonly used as an interposing relay between PLC outputs and field devices, provided the coil and contact ratings match the circuit.

Why is socket mounting useful?

Socket mounting allows easier installation, testing, replacement, and maintenance without rewiring the relay terminals directly.