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3 Channel Relay Board 5A 30V DC GPIO Expansion Module with Isolated Optocoupler 40-Pin GPIO Header Low-Level Trigger Status LEDs For Raspberry Pi 5/4B/3B+/3B/Zero W/Zero 2W/Pico W/Pico 2W
- Three-channel relay expansion board enables Raspberry Pi systems to control high-voltage and high-current devices through three independently controlled relay channels.
- Supports loads up to 5A at 250V AC or 5A at 30V DC, providing clearly specified switching capacity for connected equipment.
- Uses a standard Raspberry Pi 40-pin GPIO extension header for direct connection to supported Raspberry Pi boards and compatible pin layouts.
- Compatible with Raspberry Pi 5, 4B, 3B+, 3B, Zero W, Zero 2W, Pico W, and Pico 2W for flexible project integration.
- Photo-coupling isolation helps separate the control side from the high-voltage circuit, reducing interference between connected sections.
- Onboard status LEDs indicate relay operating states, allowing users to check channel activity directly on the board.
- A relay-control jumper allows the channels to use custom GPIO pins instead of only the default control pins.
- The relays are triggered by a low-level signal and pull in when the output signal is low, matching the stated control logic.
- The relay height prevents direct stacking of multiple boards; separate relay modules can be connected together using Dupont cables.
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Overview
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Product Description:
The 3 Channel Relay Board is an expansion board for Raspberry Pi computers and microcontroller boards. It enables control of high-voltage or high-current devices through three relay channels, with isolated optocoupler protection between the control and load circuits.
Core Selling Points:
Supports three relay channels for controlling connected electrical devices. The isolated optocoupler design helps prevent interference from the high-voltage circuit. Onboard LEDs indicate relay status, and a relay control jumper allows custom control pins instead of the default pins.
Technical Specifications:
Product type: 3 Channel Relay Board expansion board. Relay load rating: up to 5A 250V AC or 5A 30V DC. Interface: standard Raspberry Pi 40-pin GPIO extension header. Isolation: isolated optocoupler, also described as photo coupling isolation. Control indicator: onboard relay-status LEDs. Compatible with Raspberry Pi 5, Raspberry Pi 4B, Raspberry Pi 3B+, Raspberry Pi 3B, Raspberry Pi Zero W, Raspberry Pi Zero 2W, Raspberry Pi Pico W, and Raspberry Pi Pico 2W.
Before Purchase:
The relay is triggered by a low-level control signal and pulls in when the output is low. The relay height prevents multiple boards from being stacked directly; multiple relay modules can instead be connected using Dupont cables. Verify the connected load is within the stated 5A 250V AC or 5A 30V DC rating and confirm compatibility with the available 40-pin GPIO header.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by GeekSpace Return Policy
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