# Industrial 8-Channel Relay Module for Raspberry Pi Pico

**Type:** Product page · **SKU:** WS-20218 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/industrial-8-channel-relay-module-for-raspberry-pi-pico-multi-protection-1.html ([markdown](https://core-electronics.com.au/industrial-8-channel-relay-module-for-raspberry-pi-pico-multi-protection-1.html.md))

Industrial 8-Channel Relay Module For Raspberry Pi Pico, Power Supply Isolation, Photocoupler Isolation...

## Pricing

- **Price:** $33.35 (inc GST) — $30.32 AUD, exc GST
- **Quantity discounts:** 10+ $29.11 (exc GST) · 25+ $28.20 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 today, and up to 300 more in 12–19 days.

## Description

The device includes photocoupler isolation to protect against interference from external high-voltage circuits connected to the relay. It features a robust relay rated for 10A at 30V DC. Housed in an ABS enclosure with rail-mount support, it's easy to install and safe to use. A breakout USB port and BOOT pin simplify debugging without needing to open the enclosure. Outside the enclosure, you'll find a PWR indicator, an RGB LED, and a passive buzzer.

## Specifications

**Operating voltage:** 5V

**Relay channels:** 8 Channels

**Communication protocol**: USB

**Contact form**: 1NO 1NC

**Communication interface**: Micro USB

## What's On Board

## ![](https://core-electronics.com.au/attachments/localcontent/Pico-Relay-B-details-intro_19308def3c6.jpg)

1. **Raspberry Pi Pico header**
2. **Relay screw terminal -** for connecting external devices
3. **Power supply screw terminal -** the multi relays are connected in parallel
4. **Pogo pins**
5. **USB communication port** - connected via pogo pins
6. **BOOT key -** connected via pogo pins
7. **Reset key -** Pico reset
8. **Passive buzzer** - controllable sound frequency
9. **Power indicator**
10. **WS2812** RGB LED
11. **8-channel quality relays -** contact rating per channel: =10A 250V AC or =10A 30V DC
12. **Relay operating indicator**
13. **Photocoupler isolation -** prevent interference from external high-voltage circuit connected to the relay
14. **Power supply isolation -** provides stable isolated voltage, needs no extra power supply for the isolated terminal
15. **Thickened tracks -** allows large current devices
 
## Pinout

## ![](https://core-electronics.com.au/attachments/localcontent/Pico-Relay-B-details-inter_152866cf387.jpg)

## Dimensions

## ![](https://core-electronics.com.au/attachments/localcontent/Pico-Relay-B-details-size_161287c0e33.jpg)

## Resources

- Wiki

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE08599-1.jpg)