Omron G2R-1-SND 12VDC (S) Relay Socket: Features, Specs and Applications

The Omron G2R-1-SND 12VDC (S) relay socket is a compact plug-in relay for control panels and interface circuits that require dependable 12 VDC operation. It belongs to the Omron G2R-S relay series and is widely used in automation, machine control, low-voltage control circuits, and electrical panels where fast maintenance and clear status indication are important.

Technical Characteristics

This relay has a 12 VDC coil, SPDT contact configuration, 5-pin plug-in terminal structure, and 10 A rated carry current. The SND version includes diode protection, LED indication, a transparent case, mechanical operation indicator, and label facility. The integrated diode is especially useful in DC circuits because it helps suppress reverse voltage generated when the relay coil is de-energized.

The contact material is designed for industrial relay performance, while the plug-in format supports use with compatible Omron P2RF socket families. This makes the relay suitable for modular cabinet layouts, DIN rail socket installations, and service-friendly control systems.

Application Areas

The Omron G2R-1-SND 12VDC (S) relay socket is commonly found in PLC output circuits, automation panels, alarm circuits, access systems, small machine control units, lighting control panels, and low-voltage switching applications. Its 12 VDC coil makes it practical for systems powered by battery-backed control supplies or low-voltage DC control architecture.

For broader Omron relay and automation component information, see Omron industrial products.

Installation and Maintenance Benefits

One of the strongest advantages of this relay is visibility. The LED indicator confirms coil energization, while the mechanical indicator provides a direct visual cue. In crowded panels, this helps technicians identify active circuits without unnecessary testing. The label facility also supports organized wiring and faster diagnostics.

FAQ

What does SND mean in this model?

In this relay family, SND indicates a DC relay version with LED indication and diode protection, making it suitable for DC coil circuits.

Is the Omron G2R-1-SND 12VDC (S) suitable for PLC outputs?

Yes. It is often used as an interface relay between PLC outputs and field devices, provided the load and circuit design match the relay rating.

Why is diode protection important?

When a DC relay coil turns off, it can create reverse voltage. The built-in diode helps protect connected electronic outputs from that voltage spike.

Can it be replaced easily?

Yes. Because it is a plug-in relay, it can be removed from its socket and replaced without rewiring the full circuit.