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Green circuit board with eight black relay blocks, white terminal strips, and a USB-C cutout on a black DIN-rail enclosure

WaveShare

WaveShare Industrial 8-Channel Relay Module for Raspberry Pi Pico

SKU CH-8XVN-K56Z8

Eight-channel relay board with isolated power supply and photocoupler protection for Raspberry Pi Pico, rated 10A at 250V AC or 30V DC

  • Integrated power isolation removes need for extra supply
  • Photocoupler isolation shields Pico from high-voltage relay circuits
  • Eight relays rated 10A at 250V AC or 30V DC
  • ABS rail-mount enclosure protects relays and simplifies installation
  • External USB, BOOT pin, RGB LED and buzzer ease debugging

8-Channel Relay Module for Pico

The WaveShare Industrial 8-Channel Relay Module adds eight independently switched outputs to a Raspberry Pi Pico. Each channel handles up to 10 A at 250 V AC or 10 A at 30 V DC. Onboard power-supply isolation and photocoupler isolation keep the Pico’s logic side separate from the switched loads. An ABS enclosure with rail-mount tabs makes panel installation straightforward.

Isolation and debugging features

The unibody isolated supply means no external power brick is required for the relay coils. Photocouplers block high-voltage transients from reaching the microcontroller. A breakout USB port and exposed BOOT pin let you reprogram or debug the Pico without opening the enclosure. Status feedback comes from a PWR indicator, an RGB LED and a passive buzzer mounted on the case exterior.

Upgrading from basic relay boards

This module replaces bare relay shields that lack isolation, integrated power or rugged enclosures. The jump is worth it when you need safe switching of mains-level circuits, industrial DIN-rail mounting and in-case debugging access. It is not suited for applications requiring more than eight channels or for designs that must drive loads beyond the 10 A contact rating.

Highlights

  • Integrated power isolation removes need for extra supply
  • Photocoupler isolation shields Pico from high-voltage relay circuits
  • Eight relays rated 10A at 250V AC or 30V DC
  • ABS rail-mount enclosure protects relays and simplifies installation
  • External USB, BOOT pin, RGB LED and buzzer ease debugging

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum continuous current each relay contact can handle at 250 V AC?

Each relay contact is rated for 10 A at 250 V AC or 10 A at 30 V DC.

Does the module generate noticeable heat or noise when all eight relays stay energised for long periods?

The board uses a unibody isolated power supply and photocoupler isolation, so the control side stays cool and silent; only the relay coils and contacts produce normal click sounds and slight warmth.

Which Raspberry Pi Pico pins and accessories are required before the module can operate?

The module plugs directly into a Raspberry Pi Pico via its GPIO header and draws power from the Pico; no separate supply or extra wiring is needed for the isolated terminals.

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