Weidmueller WDU 4/ZZ BL

The WDU 4/ZZ BL is a terminal block designed for secure electrical connections, supporting 4mm² wire sizes. The "ZZ" designation typically refers to a quick-connect or spring-loaded mechanism, allowing for tool-free wire insertion. The "BL" indicates the blue color, often used for specific color coding or identification in electrical systems. This terminal block is commonly used in industrial, control panel, and automation applications, ensuring reliable, efficient, and organized connections.