Weidmuller's 1632050000 ZDU 4 is an industrial grade double-level terminal block with Push-In technology. It is designed for use in all areas of industrial installations, process engineering, and renewable energy applications. Features include a 4 mm²cross-section, easy assembly, easy access and reliable connections, spring-loaded contacts for higher contact forces and improved contact performance, fine-stranded conductor reversible sleeve, and a red clamping element for clear labelling of the connections. It is also UL and CSA approved, as well as RoHS compliant.