# Raspberry Pi 8-Channel Relay Board

**Type:** Product page · **SKU:** WS-15423 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/raspberry-pi-8-channel-relay-board.html ([markdown](https://core-electronics.com.au/raspberry-pi-8-channel-relay-board.html.md))

Add 8 easy to use relays to your Raspberry Pi

> ⚠ Warning: this product if used with high voltages (such as 240VAC) requires a license to work with in most regions.

## Pricing

- **Price:** $38.35 (inc GST) — $34.86 AUD, exc GST
- **Quantity discounts:** 10+ $33.47 (exc GST) · 25+ $32.43 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 4 today, and up to 300 more in 12–19 days.

## Description

The RPi Relay Board (B) is an expansion board with 8-ch relays for Raspberry Pi. It gives your Pi the ability to control high voltage products such as home appliances.

The relay board can be powered via the 5V terminal block, or from the Raspberry Pi GPIO connector. Both connectors are linked internally so use caution when powering to check your supply is well-regulated and capable of powering all connected devices.

### Features

- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- High quality relays, loads up to 5A 250V AC or 5A 30V DC
- Photo coupling isolation, prevent interference from high voltage circuit
- Standard DIN rail mount bottom case
- Onboard LEDs for indicating relays status
- Relay control pin selection jumper, allows to control the relays by custom pins other than the default pins
- Reserved control Interface, allows to work with controllers like PLC
- Comes with development resources, including examples in wiringPi, bcm2835, python, python-bottle (webpage control), and crontab (cron job)
 
### Specifications

- Power supply voltage: 5V (via GPIO or terminal block)
- Trigger signal: 3.3V/5V
- Relay channels: 8-ch
- Contact form: SPDT - NO,NC
- Closed current: 6mA (per channel)
- Connections: screw terminal block
- Dimension: 232 × 72 (mm)
- Mounting hole size: 3.0mm
 
### Dimensions

![RPi Relay Board (B) dimensions](https://core-electronics.com.au/attachments/localcontent/RPi-Relay-Board-B-size_13275b421f2.jpg)

### Resources

- **Wiki for 8-Channel Relay board for Raspberry Pi**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE08763-6.jpg)