General
Product type	Barrier strip
Terminal type	Through-wiring clamp
Connection type	Screw connection
Maximum conductor cross-section	16 mm²
Terminal body material	Hardened steel
Contact bridge material	tin-plated copper

The Weidmüller terminal block WDU 16 is a passage terminal block for use in industrial electrical installations. It is designed for connecting or joining electrical conductors with a permanently secure contact. The terminal block is rated for cross-sections up to 16 mm² and features a screw connection that ensures a firm and reliable connection. The construction from hardened steel enables high mechanical load capacity, while the tin-plated copper ensures optimal electrical conductivity. This material combination ensures long service life and stable performance under industrial conditions.

Terminal block is the product type used in electrical engineering for the parallel mounting of multiple terminals on a rail. The WDU 16 is specifically designed for use in enclosures and control systems, where secure and durable connections of wiring are required. The terminal block is designed for use in industrial electrical engineering, where high mechanical and electrical loads occur.

Functions and equipment in detail

The terminal block enables the connection of conductors with a cross-section up to 16 mm². The screw connection ensures a mechanically stable fixation of the conductor, with the screw pressing the conductor firmly against the contact bridge. The use of hardened steel for the terminal body ensures high strength and resistance to mechanical loads. The tin-plated copper in the contact area ensures low contact resistance and reliable electrical conductivity, which is crucial for the efficiency and safety of the installation.

Technology explained simply

The WDU 16 operates on the principle of a screw terminal, where the conductor is inserted through an opening in the terminal and tightened with a screw. The screw presses the conductor against a contact bridge made of tin-plated copper. This contact bridge creates a metallic connection that is electrically conductive. The terminal is designed to remain secure even under high mechanical loads, such as those occurring in industrial environments. The use of hardened steel for the terminal body increases strength and prevents deformation under load.

Compatibility and accessories

The WDU 16 is compatible with various accessories used for identification and enhancement of the terminal arrangement. These include terminal markings such as the WAD 12 MC B GE/SW in yellow or the WS 12/5 MM in white, used for better identification of conductors. Cross connectors such as the WQV 16-2.5 or WQV 16/2 enable electrical connection of multiple terminals in a row. Additionally, partition panels such as the WTW EN and end plates such as the WAP 16+35 WTW 2.5-10 BL are available to structure the terminal arrangement. Rail holders such as the WEW 35/1 are used to mount the terminals on a mounting rail.

Mounting and installation

The WDU 16 is mounted on a standard DIN rail, commonly used in enclosures and control systems. The terminal is simply clipped onto the rail and locked in place. The conductor is inserted through the opening in the terminal and tightened with the screw. The screw connection must be tightened sufficiently to securely hold the conductor without damaging it. Mounting requires no additional tools other than a screwdriver or an appropriate wrench.

Advantages in operation

The WDU 16 provides a reliable and durable connection of conductors that remains stable even under industrial conditions. The combination of hardened steel and tin-plated copper ensures high mechanical strength and optimal electrical conductivity. The terminal is easy to install and requires no special tools. Compatibility with various accessories enables flexible and structured installation in enclosures and control systems. Mounting in rows allows for efficient and clear arrangement of terminals.