The 30A Relay HAT is a dual SPDT power relay I/O board for Raspberry Pi with a built-in GPIO expander. It’s perfect for home automation, industrial control or automotive applications.

The ON-ON style changeover relays offer a whopping 30A switching capability up to 277V AC. Both relays are independently opto-isolated up to 3.75 kV, which safely isolates the relays from each-other and from the Raspberry Pi.

Featuring the well-documented MCP23008 8 channel GPIO expander, the 30A Relay HAT is easy to setup and control via I2C. It can be used with any device featuring an I2C bus and works with 3.3V or 5V devices (eg, Arduino); by selecting the appropriate jumper. Channels 0-1 are utilised for the relays, giving you an extra 6 GPIOs for use with your project.

By default the relays are powered through the host Raspberry Pi using the GPIO port. The relays can be powered separately by removing the jumper marked "Link" so you can use an external supply to power the relays, reducing the load on the Raspberry Pi. Use of an external power supply is recommended if you plan to connect multiple HATs to your Raspberry Pi simultaneously.

Can be used in-conjunction with other expansion boards (check-out our HAT RACK range of carrier boards). Up to eight 30A Relay HATs can be used with a single Raspberry Pi (add more using our GPIO I2C pHAT).

Features

• 2 opto-isolated SPDT power relays with indicator LEDs
• 30A @ 277V AC
• Supports up to 6mm² / 10 AWG cable
• 2oz copper PCB ensures maximum current flow
• Easy to use interactive web GUI
• 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
• Conforms to Raspberry Pi HAT Specifications

What's Included

• 1x 30A Relay HAT
• 2x Jumper Links

Interactive Web GUI

Once installed on your Raspberry Pi, this interactive GUI allows quick & easy control of your 30A Relay HAT without the need for any coding. It is designed to be both a user guide & quick reference to the 30A Relay HAT pinout. The GUI is fully responsive and adapts to any screen size.

Check-out the Live Demo.

Easy Installer

Our easy installer takes care of the setup process automatically.

sudo wget https://git.plasmadan.com/install.sh sudo sh install.sh

This script will automatically enable I2C, install the required packages and setup the Web GUI.

Alternatively, you can install manually. See our setup guide.

Compliance

• UL 796 certified manufacturer
• RoHS compliant (lead free)
• CE & UKCA compliant (certificates)

Dimensions

Documentation

You can find this and our other Raspberry Pi projects on our GitHub page.

Taxes, Warranty & Shipping

We offer a 12 month warranty on all our products (excludes damage caused by water ingress, misuse or abuse).

We are a VAT registered business. For our UK customers VAT is inclusive. For international sales outside the UK VAT is not charged.

Note: Local taxes and other import or handling fees may be applied. These are the responsibility of the buyer. We will always declare the purchase price excluding shipping.

VAT: GB 163 9265 87