The 5V 6-Channel Relay Module is a high-performance control board designed for medium-scale automation. At Electrapac, we recommend this 6-channel configuration for users who find 4 channels too limiting but don't want the bulk of an 8-channel board. It is the perfect "middle-ground" solution for controlling multiple AC or DC loads from a single microcontroller.

Product Overview

This module allows an Arduino, Raspberry Pi, or 8051 controller to toggle up to six independent high-power devices. Each channel is optically isolated, meaning the "high-voltage" side of the board is completely separated from your delicate "logic" side by a beam of light. This prevents electrical noise and surges from crashing your code or damaging your processor.

Key Features for Electrapac Customers

• Opto-Isolated Reliability: Every channel features its own optocoupler (the small 4-pin white ICs), providing professional-grade protection against back-EMF and inductive spikes.

• Six-Channel Versatility: Control six distinct systems—such as garden lights, a fountain pump, a heater, a cooling fan, and two security locks—all from one compact board.

• Status LEDs: Six red LEDs provide instant feedback for each channel, making it easy to see exactly which relay is energized during testing and operation.

• Standard Screw Terminals: Each relay output features a high-quality terminal block for NO (Normally Open), NC (Normally Closed), and COM (Common) wiring.

• Mounting Holes: The PCB includes pre-drilled holes at the corners, allowing for secure installation inside project boxes or control panels.

Wiring for Automation

When setting up your project with supplies from www.electrapac.com, use these connection points:

1. Input Side:

   • VCC: 5V Power from your microcontroller or external supply.

   • GND: Common Ground.

   • IN1 to IN6: Signal pins from your Arduino digital outputs.

2. Output Side (Load):

   • COM: Connect the "Hot" or positive lead of your power source here.

   • NO (Normally Open): Use this for devices that should stay OFF until you send a signal.

   • NC (Normally Closed): Use this for devices that should stay ON by default.

Primary Applications

• Advanced Home Automation: Controlling multiple light zones or home theater systems.

• Hydroponics & Greenhouses: Automating water pumps, grow lights, fans, and nutrient feeders on a timed schedule.

• Industrial Prototyping: Testing multi-step sequence controls for conveyor belts or robotic sorters.

• Holiday Lighting: Creating complex synchronized light shows with six independent AC outlets.

Why Shop at Electrapac?

We source our 6-Channel Relay Boards with heavy-duty copper traces designed to handle 10A loads without significant heat buildup. At www.electrapac.com, we provide the reliable hardware that gives you total control over your environment.