The Beckhoff KL2722 Bus Terminal is a robust and versatile AC output module designed to switch electrical loads directly within Beckhoff’s modular Bus Terminal I/O system. With two triac-based output channels, the KL2722 enables reliable control of ohmic and inductive loads across a wide operating range, making it ideal for both building automation and industrial control applications.

Each output channel supports a nominal voltage of 12…230 V AC with a maximum current of 1 A per channel, allowing it to switch both low-voltage devices and mains-powered equipment. This flexibility makes the terminal suitable for a broad variety of tasks, from controlling lighting and heating elements to operating small motors or relays. The outputs are implemented as make contacts that are mutually locked, ensuring safe and controlled switching behaviour.

The KL2722 is engineered for dependable performance in demanding environments. It includes integrated surge voltage protection (> 275 V AC), which safeguards the terminal and connected equipment from transient overvoltages and electrical disturbances commonly found in AC power systems. This protection not only enhances equipment longevity but also improves overall system reliability.

With an operational frequency range of 47…63 Hz, the KL2722 is compatible with standard rotating field AC supplies, making it suitable for use worldwide. It also features a typical leakage current of 0.8 mA (maximum 1.5 mA) per channel, ensuring safe switching even when controlling sensitive or inductive loads.

The terminal employs 4-wire connection technology, which provides secure and straightforward wiring for AC distribution. Its compact housing and integration into the Beckhoff Bus Terminal system allow seamless combination with digital, analogue, and speciality terminals, enabling engineers to design modular, scalable, and application-specific I/O solutions.

Practical applications of the KL2722 are diverse. In building automation, it can be used to control lighting systems, fan units, and heating elements. In industrial automation, it is suitable for operating solenoid valves, small AC motors, or auxiliary equipment that requires direct AC control. Its mutually locked dual outputs make it especially valuable for tasks where safe and coordinated switching is essential.

In summary, the Beckhoff KL2722 Bus Terminal provides a compact and reliable solution for switching AC loads within distributed automation systems. With two triac outputs, wide voltage compatibility, integrated surge protection, and support for ohmic and inductive loads, it offers engineers a safe, flexible, and space-saving module for modern automation environments.