What is a PCB Power Relay?
PCB Power Relay Definition
![About PCB Power Relays](/sites/default/files/2021-10/e959555a-b072-439b-ab51-17033df17c1c.jpg)
Relays mainly used for more than 3A load switch, and equipped in household appliances, such as refrigerators, washing machines, and AV device, as well as various FA equipment, industrial equipment, and household equipment.
PCB Power Relay Features
Power relays for printed circuit boards offer superior performance in high-capacity load switching in the power supply system owing to its material that can resist to contact arc and single contact structure (see figure). These power relays also retain excellent performance in contact volume and contact pressure.
In addition, these power relays comply with various safety standards. The products line-up includes relays that have enhanced insulation distance between coil contacts
![Single contact structure](/sites/default/files/2021-10/621a0c59-1e9a-4b14-b38c-d014f6c5109d.gif)
Single contact structure
![Examples of safety standatds](/sites/default/files/2021-10/7d84de3f-5f56-4010-b574-108c28cfc778.gif)
Examples of safety standatds
PCB Power Relay Types
Omron's power relays for printed circuit boards contribute to high functionality and safety of devices with wide variety of current capacities (3A-30A), contact structures, protective structures, and coil specifications.
![Omron's PCB Power Relays](/sites/default/files/2021-10/0ddc0649-a9cf-4f4f-8a2f-c768a237c558.png)
PCB Power Relay Diagram
The power relays for the board have suitable structures according to applications, and are generally composed of a plurality of components as shown in the following figure. This figure shows an example of a hinged relay.
![PCB Power Relay Diagram](/sites/default/files/2021-10/8b2537c4-10cd-4149-bd0c-3ec29713a44f.gif)
PCB Power Relay Application Examples
There are a wide variety of industries that use power relays that can directly switch loads such as motors, lamps, and heaters.
Industrial equipment
Machine tools, molders, welders, mounters, and other industrial robots
![Machine tool](/sites/default/files/2021-10/0a56759a-2771-45e7-80f3-4e57ea393a6f.gif)
Machine tool
![Robot](/sites/default/files/2021-10/f630f4e6-e953-4666-994c-9ae7819571b8.gif)
Robot
Household equipment
UPS, switching power supply
![Automatic shutter](/sites/default/files/2021-10/dae9eef0-367b-4476-8c25-f0e265166e9a.gif)
Automatic shutter
![Lighting equipment](/sites/default/files/2021-10/31f40a7a-f541-4930-b77e-483683294aec.gif)
Lighting equipment
Power supplies
UPS, switching power supply
![UPS](/sites/default/files/2021-10/964ad958-744b-497a-b651-4a310af45daf.gif)
UPS
![Switching power supply](/sites/default/files/2021-10/93626e4f-fa3b-48e7-98b0-68b8ab4ce392.gif)
Switching power supply
FA equipment
Programmable controllers, temperature controllers, timers, and various I/O devices
![Programmable controller](/sites/default/files/2021-10/6df46748-72c9-4670-9886-1343d08df4c7.gif)
Programmable controller
![Temperature controller](/sites/default/files/2021-10/aa7f17fd-a9c9-4233-8fff-77a771939fd0.gif)
Temperature controller
Electrical household appliances
Air conditioners, washing machines, refrigerators, etc.
![Air conditioners](/sites/default/files/2021-10/7bf3b6b3-cea3-40b4-a9e7-88dadebcd8c0.gif)
Air conditioners
![Washing machine](/sites/default/files/2021-10/05dbf7f3-1159-4172-9a69-179f6a7d26da.gif)
Washing machine
Energy Market
UPS, PV Inverter, EV Charger, Industrial air conditioner, etc.
![UPS](/sites/default/files/2021-10/73b17a38-d0c2-45c0-a14a-f6351c8daafa.jpg)
UPS
![EV Charger](/sites/default/files/2021-10/e59cd000-1a9b-46ad-b191-b9014c9de2ad.jpg)
EV Charger
![Industrial air conditioner](/sites/default/files/2021-10/1767e49c-cfc5-40f7-873f-dad5bb33d848.jpg)
Industrial air conditioner
![PV Inverter](/sites/default/files/2021-10/6f90c0a4-b4ce-4d5c-a11c-ab4ae4a6c24e.jpg)
PV Inverter