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The most widely used dedicated library for this purpose is provided by . As of 2025, the latest version of this library offers a complete model for simulating a 4-channel relay module within Proteus. --- 4 Channel Relay Module Library For Proteus
A relay is an electromechanical switch that uses a low-power signal from a microcontroller to control a much higher-powered circuit. The 4-channel relay module consolidates four independent relays onto a single board, making it an efficient solution for controlling multiple AC or DC loads simultaneously. As of 2025, the latest version of this
4-channel relay module library for Proteus allows users to simulate high-power switching circuits involving multiple loads, such as lights or motors, using a microcontroller like an Arduino. While standard single relays exist in the default Proteus library, specialized module libraries provide a realistic layout with built-in optocoupler isolation and driver circuitry. Key Features of the 4-Channel Module 4-channel relay module library for Proteus allows users