Omron G2R-SND General Purpose Plug-In Relay
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A. Product Overview
The Omron G2R-2-SND DC24(S) belongs to the Omron G2R Series of general-purpose, slim and space-saving plug-in power relays. It is a 2-pole DPDT relay operating with a 24 VDC coil. In the Omron model designation, "S" represents plug-in terminals, while "ND" indicates an LED indicator and diode.
This relay is designed for applications where a low-power DC control signal must switch separate electrical circuits. Its DPDT contact arrangement allows two circuits to be switched simultaneously.
For a resistive load, the 2-pole G2R relay is rated for 5 A at 250 VAC and 5 A at 30 VDC. The maximum switching current is 5 A.
The relay is suitable for use with compatible Omron sockets including:
P2RF-08-PU
P2RF-08
P2RF-08-E
P2R-08P
P2R-087P
P2R-08A
B. Working Principle
The Omron G2R-2-SND DC24(S) is an electromagnetic relay.
When 24 VDC is applied to the relay coil, the coil creates a magnetic field. This magnetic field moves the internal armature and changes the position of the relay contacts.
Because the relay has a DPDT contact configuration, two separate switching circuits can operate together.
The operating sequence is:
24 VDC control signal applied → relay coil energizes → magnetic field is generated → internal contacts change position → connected load is switched
When the 24 VDC control signal is removed, the magnetic field collapses and the contacts return to their normal position.
The SND version also contains an LED indicator and diode. The LED provides a visual indication when the relay coil is energized, while the diode is incorporated in the DC coil version.
For the 24 VDC coil version, the Omron datasheet specifies approximately 21.6 mA rated coil current, 1,113 ohm coil resistance and approximately 0.53 W power consumption.
C. Why It Is Used
The Omron G2R-2-SND DC24(S) relay is used when a PLC, controller, sensor or automation system needs to control another electrical load through an isolated switching device.
Typical uses include:
- PLC output switching
A PLC output can energize the 24 VDC relay coil, while the relay contacts switch another electrical circuit. - Electrical control panels
It can be installed in automation and control panels for switching control signals and loads. - Machine automation
The relay can be used between controllers and electrical devices in industrial machinery. - Control circuit isolation
The relay separates the coil control circuit from the switched contact circuit. - Two circuit switching
Its DPDT configuration allows two circuits or two control signals to be switched simultaneously. - Easy maintenance
The plug-in design allows the relay to be removed from a compatible socket without rewiring the complete control circuit. - Visual status indication
The built-in LED helps technicians quickly identify whether the relay coil is energized.
The relay is also designed for industrial environments, with an operating temperature range of approximately minus 40 degrees Celsius to 70 degrees Celsius and operating humidity range of 5 percent to 85 percent.
D. Suitable Buyers
The Omron G2R-2-SND DC24(S) is suitable for:
Industrial automation companies looking for reliable 24 VDC control relays.
PLC panel manufacturers requiring plug-in relays for PLC output interfacing.
Control panel builders designing automation, electrical and machine control panels.
Machine manufacturers and OEMs requiring relays for switching and control circuits.
System integrators working with PLCs, sensors, controllers and automation equipment.
Electrical contractors installing industrial control systems.
Maintenance departments replacing existing Omron G2R Series relays.
Factories and production plants maintaining automation panels and electrical control systems.
Industrial relay distributors and traders supplying Omron automation components.
Frequently Asked Questions
1. What is the Omron G2R-2-SND DC24(S)?
The Omron G2R-2-SND DC24(S) is a 24 VDC, 2-pole DPDT plug-in industrial power relay with an LED indicator and built-in diode.
2. What is the coil voltage of G2R-2-SND DC24(S)?
The rated coil voltage is 24 VDC.
3. What does SND mean in G2R-2-SND?
According to Omron's model structure:
S means plug-in terminal configuration.
N means LED indicator.
D means diode.
Therefore, G2R-2-SND is a plug-in relay with an LED indicator and diode.
4. What is the contact configuration of G2R-2-SND?
It is a 2-pole DPDT relay. The G2R-2 Series uses DPDT contacts.
5. What is the contact rating?
For resistive loads, the 2-pole model is rated at:
5 A at 250 VAC
5 A at 30 VDC
6. Is Omron G2R-2-SND suitable for PLC panels?
Yes. Its 24 VDC coil, DPDT contacts and plug-in construction make it suitable for PLC interfacing, automation panels and machine control circuits.
7. Does G2R-2-SND have an LED indicator?
Yes. The "N" in the model designation indicates that the relay includes an LED operation indicator.
8. Does the relay have a built-in diode?
Yes. The "D" designation indicates a built-in diode in the DC relay version.
9. Which socket is suitable for G2R-2-SND?
Compatible 2-pole sockets include P2RF-08-PU, P2RF-08, P2RF-08-E, P2R-08P, P2R-087P and P2R-08A.
10. What is the operating temperature range?
The relay is specified for operation from approximately minus 40 degrees Celsius to 70 degrees Celsius, without icing or condensation.
11. What is the approximate weight?
The relay weighs approximately 20 grams.
12. Where is the Omron G2R-2-SND DC24 relay commonly used?
It is commonly used in PLC panels, industrial automation systems, machinery, control cabinets, electrical switching circuits and process control applications where a 24 VDC control signal needs to switch one or more electrical circuits.