The Leviton 20A Mechanical Interlock (Model 420MI9WLEV) in blue is engineered for secure and safe electrical connections. This interlock device ensures that the power supply is disconnected before the plug can be removed, enhancing safety in industrial applications. Rated for 20A, it is compatible with various systems and meets industry standards for performance and reliability. The durable construction and blue finish provide both functionality and visibility in work environments. Ideal for use in conjunction with Leviton pin and sleeve connectors, this interlock is a critical component for safe electrical operations.