The Weidmüller ZDU 1.5/4AN is a DIN-rail mounted, electrical terminal block. It is designed to interconnect and secure wiring within control panels. This terminal block comes with a single-level cage-clamp connection that is suitable for continuous current ratings up to 23 A per contact, and the operating temperature range is from -40 °C to 85 °C when used with solid conductors. The terminal block is 4 mm wide, making it suitable for small spaces, and features a transparent polycarbonate insulation displacement element. Additionally, the terminal block is flame-retardant and is suitable for Class II, III, and IV installations.