What is a General Purpose Relay?

General Purpose Relay Definition

About General Purpose Relays

General Purpose relays are the origin of the Omron relays, and they meet various needs with a wide variety.

They also are used in a variety of control components at production sites where high reliability is required and in control systems such as electricity, water, and gas.

General Purpose Relay Types

Types Points Typical relays Model
For control panels Relays with 1 to 4 poles are mainly used for relay sequences or I/O applications MM(K), MK(S), MY, LY,G2R, G2RV, G7T, etc. For control panels
Built-in Built-in relays enable using a carry current of up to 40 A and are used for building into devices, e.g., to turn ON load power supplies. G7Z、G7J、G7X, etc. Built-in
For work saving Work-saving relays are available in relay units and are used mainly for I/O applications for programmable controllers when downsizing and saving work are required. G6D-F4B、G6B-4BND, etc. For work saving
For special operations Relays for special operations are available as relays or relay units that are specified for a specific applications, such as alternative operation and stepping operation of pumps. G4Q、G9B、MYA, etc. For special operations

General Purpose Relay Diagram

Transparent cases are used for most of these relays so that users can see inside of the relays.
In addition, indicators and mechanical latching levers contribute to a reduction of man-hours for checking operation and inspections.

Example of Applications of Models with Latching Levers
Operation checks in relay sequence circuits, etc

General Purpose Relay Features

General Purpose Relay Features
Operation method for latching lever

General Purpose Relay Application Examples

General purpose relays are mainly used as a control circuit (relay sequence) for control circuits of automated machines used at various production sites, and for various control systems such as lighting, air conditioning, and water treatment of buildings.
Omron has a wide variety of relays in accordance with the use environment and the purpose. (Mini-power relays, latching relays, etc.)

Relay sequences

Construct control circuit by combining basic four circuits (NOT circuit/AND circuit)/OR circuit/X-OR circuit) with relays.

Relay sequences

I/O relays

Used as a relay for relaying a load of a controller such as a PLC etc. and of a solenoid valve etc.

I/O relays

Building automation

Application Lighting, air-conditioning control, etc.

Lighting

Lighting

Air-conditioning control

Air-conditioning
control

Control to support the infrastructure

Application Traffic (not associated with running and stopping control), water supply, information, etc.

Smart meter

Smart meter

Gas meter

Gas meter

Digital switching system

Digital
switching
system

Plant automation

Application Electricity, Steel, Shell Gas, etc.

Various plants

Various plants

Factory automation

Application Machine for manufacturing automobiles, Semiconductors, Chemicals etc.

Semiconductor manufacturing machine

Semiconductor
manufacturing
machine

Robot

Robot