--- 4 — Channel Relay Module Library For Proteus

Four AC light bulbs (LAMP) to visualize the output of each channel.

A 4-channel relay module is a compact, commonly used peripheral that allows microcontrollers and simulation environments to switch higher-voltage or higher-current loads than the controller can drive directly. In electronic design and embedded-systems education, relay modules provide a clear bridge between low-voltage logic and real-world actuators such as lamps, motors, solenoids, and HVAC controls. Creating a library model of a 4-channel relay module for the Proteus simulation environment enhances prototyping, testing, and documentation by letting designers place a single modular component with realistic pins, control inputs, power connections, and schematic footprint rather than wiring up discrete relays each time. --- 4 Channel Relay Module Library For Proteus

: The simulation models often include optocoupler isolation, which mirrors the physical component's ability to protect low-voltage circuits from high-voltage spikes. Four AC light bulbs (LAMP) to visualize the

Connect the control side and the load side carefully to ensure proper isolation simulation: Creating a library model of a 4-channel relay

Connect the terminal to one terminal of your load (e.g., a lamp or motor).

To add a custom 4-channel relay module to your Proteus environment:

Provides visual feedback on whether a channel is active. Common Control Voltages: Usually operates at 5V or 3V.