# 30A Relay HAT The 30A Relay HAT is a dual SPDT power relay I/O board based on the Microchip MCP23008 I2C expander. Ideally suited to automation or industrial control, switching of household appliances, industrial machinery or automotive applications. ## Features * 2 opto-isolated SPDT power relays * 30A / 15A @ 250V AC (NO / NC) * Supports up to 6mm² / 10 AWG cable * 2oz copper PCB ensures maximum current flow * Easy to use [interactive web GUI](https://io.plasmadan.com/30arelayhat/) * Based on the MCP23008 8-port GPIO expander * Jumper selectable I2C address & GPIO voltage (3.3V / 5V) * Can be used with 3.3V or 5V I2C host devices (eg, Arduino) * Built-in user programmable ID EEPROM ## Easy Installer Our easy installer takes care of the setup process automatically. ``` sudo wget https://git.plasmadan.com/install.sh sudo sh install.sh ``` Alternatively, you can install manually. See our [setup guide](https://github.com/plasmadancom/HAT-GUI#setup-guide).