The Beckhoff KL2784 Bus Terminal is a compact and robust output module designed for switching low-voltage loads with high reliability. Featuring four solid-state relay outputs, each with make contacts, the terminal provides an efficient and durable solution for controlling devices within automation systems. By combining high channel density with solid-state switching technology, it delivers long service life, minimal wear, and stable performance in demanding industrial applications.

Each channel of the KL2784 supports a nominal voltage range of 0…30 V AC/DC, making it suitable for a broad range of applications. For ohmic loads, the range is extended up to 0…48 V DC, providing additional flexibility for integrating a variety of actuators and devices. With a maximum output current of 2 A per channel, the module is capable of reliably powering loads such as lamps, small solenoids, and auxiliary control equipment.

The solid-state design of the KL2784 provides a distinct advantage over mechanical relays by offering wear-free operation and the ability to switch loads more quietly and efficiently. Its breakdown voltage of 80 V ensures safe isolation between the output stage and control side, while its peak current handling capability — up to 5 A for 100 ms and less than 50 A for 10 ms — provides resilience during inrush conditions, such as when switching capacitive or lamp loads.

Connection is made easy through 2-wire technology, simplifying wiring and reducing installation time. This design not only enhances user convenience but also improves system maintainability by offering clear and structured wiring layouts.

Integration into Beckhoff’s Bus Terminal system allows the KL2784 to be combined seamlessly with other I/O modules, enabling highly modular and scalable automation architectures. Power and signal distribution are streamlined, reducing the need for external relays or additional switching hardware. This makes it a cost-effective choice for engineers seeking compact, reliable, and high-performance switching solutions within fieldbus systems.

The KL2784 is especially useful in applications that require frequent switching, such as signal lights, alarms, or auxiliary device control, where the benefits of solid-state relays — long lifetime, no contact wear, and fast, reliable switching — are particularly valuable.

In summary, the Beckhoff KL2784 Bus Terminal provides four robust, solid-state relay outputs for reliable control of AC and DC loads. With its combination of compact design, durable switching technology, and flexible voltage handling, it offers an ideal solution for modern automation systems that require efficient, long-lasting, and maintenance-free load switching