General
Product type	Barrier strip
Manufacturer	Weidmüller
Function	Earthing terminal
Conductor cross section	2,5 mm²
Connection type	Screw connection

The Weidmüller terminal block AKE 2.5 is a specially designed earthing terminal for industrial use, intended for the safe and durable connection of protective conductors to the mounting base (earth). It enables efficient and reliable earthing of electrical installations and machines, with the terminal mounted directly onto a mounting rail. The construction from hardened steel ensures high mechanical stability, withstanding the loads encountered in industrial operation. The contact surface is made of tin-plated copper, providing optimal electrical conductivity and corrosion protection. The terminal is designed for a cross-section of 2.5 mm² and features a screw connection, enabling a secure and durable connection.

Applications

The AKE 2.5 is used in industrial electrical engineering where reliable earthing of machines, installations, and enclosures is required. It is particularly suitable for applications in the manufacturing industry, automation technology, and electrical installation, where protective conductors must be securely connected to earth. The terminal is frequently mounted in enclosures, control systems, and distribution boxes to ensure electrical safety.

Functions and Equipment in Detail

The terminal features a screw connection, enabling a mechanically stable and electrically conductive connection. The use of hardened steel ensures high strength and longevity, while the tin-plated copper at the contact point provides optimal conductivity and corrosion resistance. The terminal is designed for a conductor cross-section of 2.5 mm², making it suitable for most industrial earthing applications. Mounting is done on a standard mounting rail, allowing the terminals to be arranged in series to connect multiple earthing points.

Technology Explained Simply

The AKE 2.5 uses a screw terminal principle, where the conductor is inserted through an opening and secured with a screw. The screw is tightened using an appropriate tool (e.g. screwdriver or wrench) to ensure a firm mechanical connection. The contact surface made of tin-plated copper ensures minimal electrical resistance, which is essential for effective earthing. The use of hardened steel prevents deformation or brittleness of the terminal under mechanical stress.

Compatibility and Accessories

The terminal is compatible with various accessories that extend its functionality. These include cross connectors such as Q 3 AKZ1.5 or Q 4 AKZ1.5, which enable electrical connection between multiple terminals. End brackets such as EW 15/2 or EW 15 are used for finishing the terminal block on the rail. Label carriers such as BZT 1 WS 10/5 or BZT 1 ZA WS 10/5 allow identification of the terminal. Terminal markers such as DEK 5/8 MM WS or DEK 5/5 MC NE WS serve for visual identification. Test plugs such as PS 2.3 RT can be used to check the connection. Socket inserts such as STB 8.5/D4/2.3/M2.5 AKZ allow additional connection options.

Mounting and Installation

Mounting is done on a standard mounting rail (e.g. 35 mm DIN rail) using the integrated mounting elements. The terminal is inserted into the rail and secured by the rail itself. The screw connection is tightened using an appropriate tool, with the specified torque value (if given) being observed to ensure an optimal connection. The terminal can be arranged in series to connect multiple earthing points. Mounting is typically done in enclosures or distribution boxes.

Advantages in Operation

The AKE 2.5 offers a reliable and durable earthing solution that meets the requirements of industrial electrical engineering. The combination of hardened steel and tin-plated copper ensures high mechanical strength and optimal electrical conductivity. The screw connection is easy to install and ensures a secure connection. Compatibility with various accessories expands application possibilities and simplifies identification and maintenance of the installation. The terminal is designed for use in industrial environments where high loads and long service life are required.