General
Conductor cross section	1,5 mm²
Connection system	Screw connection
Terminal type	Through-wiring clamp
Housing material	Hardened steel
Contact material	tin-plated copper
Product type	Barrier strip

The Weidmüller terminal block WDU 1.5/ZZ is a through-type 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 a conductor cross-section of 1.5 mm² and features a screw connection, ensuring a firm and reliable connection. The construction from hardened steel allows for high mechanical load capacity, ensuring the terminal block remains stable even under harsh operating conditions. The contact surface is made of tin-plated copper, providing optimal electrical conductivity and corrosion protection.

Terminal block is the basic product type used in electrical engineering for structured and compact connection of multiple conductors in a row. The WDU 1.5/ZZ is specifically designed for use in enclosures and control systems, where high contact quality and mechanical stability are required. The terminal block enables quick and secure installation of wiring, with the screw connection ensuring secure fastening even under vibrations and mechanical loads.

Screw connection is the connection technology in which the conductor is tightened using a screw. This approach offers high reliability and is particularly common in industrial applications, as it enables a permanent electrical connection. The screw connection is easy to install and allows precise adjustment of clamping pressure to ensure optimal contact surface.

Through-type terminal block means that the conductor passes through the terminal block, allowing it to be connected at both ends. This is particularly advantageous in control systems, where a single conductor needs to connect multiple components without requiring additional connectors. The through-type construction reduces the number of required terminal blocks and simplifies wiring.

The terminal block is designed for use in electrical installations requiring a secure and durable connection. It is particularly suitable for applications in automation technology, machine building, and industrial control systems. The use of hardened steel and tin-plated copper ensures high service life and reliability under industrial conditions.

Tin-plated copper is used as contact material to ensure high electrical conductivity and simultaneous protection against oxidation and corrosion. The tin plating prevents tarnishing of the contact surface and ensures a stable electrical connection throughout the entire service life. This is especially important in environments with high humidity or aggressive atmospheres.

Hardened steel forms the mechanical core of the terminal block and ensures high strength and resistance to mechanical stress. This is crucial to maintain stability of the terminal block even under vibrations, oscillations, or frequent mounting and dismounting operations. The material selection ensures long service life and minimizes the risk of breakage or wear.

To extend functionality, various accessories can be used, such as cross connectors (e.g. ZQV 2.5N/3 BL, ZQV 2.5N/10 BL) or covers (e.g. WAD 4 WS). These enable parallel connection of multiple terminal blocks or protection of contact points. Additionally, test adapters (e.g. WTA 2/ZA) are available, allowing electrical connections to be tested without disassembly. The combination with suitable accessories expands the application possibilities of the terminal block in complex control systems.

Installation is typically done in an enclosure or on a mounting rail, where the terminal block is inserted into the appropriate holder. The conductor is placed into the terminal block and tightened by turning the screw. The connection is visually inspectable after installation and can be easily checked or maintained if necessary.

Compatibility with other products in the Weidmüller range is provided, particularly with the mentioned cross connectors and covers. The terminal block can be arranged in rows to connect multiple conductors in parallel. The use of cross connectors enables parallel current distribution or connection of multiple terminal blocks without additional wiring. The combination with labeling carriers (e.g. BZT 1 WS 10/5) facilitates identification of individual connections in complex systems.

The WDU 1.5/ZZ is a robust and reliable component for industrial electrical installations. The materials and construction ensure high mechanical and electrical stability. The terminal block is easy to install and provides a secure connection that holds even under demanding conditions.

Application areas include wiring in enclosures, control systems, drive technology, and machine building. The terminal block is particularly suitable for applications requiring high contact quality and mechanical strength. The use of tin-plated copper and hardened steel ensures long service life and reliability. The terminal block can be used in combination with various accessories to extend functionality.

Operational advantages include easy installation, high reliability, and long service life. The screw connection enables a secure and durable connection that holds even under mechanical stress. The materials ensure high corrosion resistance and electrical conductivity. The combination with accessories such as cross connectors or covers expands application possibilities and simplifies maintenance.

Technology explained simply: The terminal block consists of a housing made of hardened steel, ensuring mechanical stability. The contact surface is made of tin-plated copper, providing high electrical conductivity and corrosion protection. The screw connection allows secure fastening of the conductor, ensuring a permanent electrical contact. The through-type construction allows connection of conductors at both ends, simplifying wiring.

Functions and equipment in detail: The terminal block is rated for a conductor cross-section of 1.5 mm² and features a screw connection. The materials are selected to ensure high mechanical load capacity and electrical conductivity. The combination with accessories such as cross connectors or covers extends functionality. The terminal block is designed for use in industrial installations, where reliability and stability are critical.

Installation and mounting: The terminal block is inserted into a mounting rail or enclosure. The conductor is placed into the terminal block and tightened by turning the screw. The connection is visually inspectable after installation and can be easily checked or maintained if necessary. Installation is typically done using a screwdriver or electric screwdriver.

Compatibility and accessories: The terminal block is compatible with various accessories, such as cross connectors (e.g. ZQV 2.5N/3 BL, ZQV 2.5N/10 BL), covers (e.g. WAD 4 WS), and test adapters (e.g. WTA 2/ZA). These extend functionality and simplify maintenance. The combination with labeling carriers (e.g. BZT 1 WS 10/5) enables clear identification of connections.

Operational advantages: The terminal block provides a secure and durable connection that holds even under mechanical stress. The materials ensure high corrosion resistance and electrical conductivity. Installation is simple and the connection is visually inspectable. The combination with accessories extends application possibilities and simplifies maintenance.

Application areas: The terminal block is suitable for use in enclosures, control systems, drive technology, and machine building. It is particularly suitable for applications requiring high contact quality and mechanical strength. The use of tin-plated copper and hardened steel ensures long service life and reliability.

Technology explained simply: The terminal block consists of a housing made of hardened steel, ensuring mechanical stability. The contact surface is made of tin-plated copper, providing high electrical conductivity and corrosion protection. The screw connection allows secure fastening of the conductor, ensuring a permanent electrical contact. The through-type construction allows connection of conductors at both ends, simplifying wiring.

Functions and equipment in detail: The terminal block is rated for a conductor cross-section of 1.5 mm² and features a screw connection. The materials are selected to ensure high mechanical load capacity and electrical conductivity. The combination with accessories such as cross connectors or covers extends functionality. The terminal block is designed for use in industrial installations, where reliability and stability are critical.

Installation and mounting: The terminal block is inserted into a mounting rail or enclosure. The conductor is placed into the terminal block and tightened by turning the screw. The connection is visually inspectable after installation and can be easily checked or maintained if necessary. Installation is typically done using a screwdriver or electric screwdriver.

Compatibility and accessories: The terminal block is compatible with various accessories, such as cross connectors (e.g. ZQV 2.5N/3 BL, ZQV 2.5N/10 BL), covers (e.g. WAD 4 WS), and test adapters (e.g. WTA 2/ZA). These extend functionality and simplify maintenance. The combination with labeling carriers (e.g. BZT 1 WS 10/5) enables clear identification of connections.

Operational advantages: The terminal block provides a secure and durable connection that holds even under mechanical stress. The materials ensure high corrosion resistance and electrical conductivity. Installation is simple and the connection is visually inspectable. The combination with accessories extends application possibilities and simplifies maintenance.

Application areas: The terminal block is suitable for use in enclosures, control systems, drive technology, and machine building. It is particularly suitable for applications requiring high contact quality and mechanical strength. The use of tin-plated copper and hardened steel ensures long service life and reliability.