: Many 4-channel modules use optocouplers to isolate the low-voltage control circuit from the high-voltage load; advanced Proteus models reflect this behavioral isolation.
Once the library is installed, you can find the device by searching for "4 Channel Relay" or the specific name provided by the library author. Arduino Relay Modules | Proteus Library 4 channel relay module library for proteus new
: High-quality libraries include status LEDs for each relay that light up during simulation when a channel is active. : Many 4-channel modules use optocouplers to isolate
