The MHD-1-1 is a robust door switch designed for marine applications, featuring a rated voltage of AC380V/DC220V and a current capacity of 5A. It accommodates a cable diameter range of Φ6-Φ12 and boasts a high protection class of IP56, making it suitable for environments where dust and heavy jets of water are present. This switch is an essential component for ensuring safety and functionality in maritime electrical systems.