The Beckhoff KL2712 Bus Terminal is a dual-channel AC output module designed for switching small loads directly within Beckhoff’s modular I/O system. Using triac technology, the terminal is capable of controlling both ohmic and inductive loads, offering a reliable and compact solution for decentralised automation tasks in building control, machine systems, and process automation.

Equipped with two independent output channels, the KL2712 supports a nominal voltage range of 12…230 V AC, making it versatile enough to handle both low-voltage and standard mains-powered devices. Each channel can switch a current range of 0.025…0.5 A, which makes the module particularly suited for smaller loads such as indicator lamps, signal devices, contactors, or auxiliary relays.

Safety and reliability are built into the design. The KL2712 includes integrated surge voltage protection (> 275 V AC), which protects both the terminal and connected equipment from harmful transients and spikes often present in AC systems. This ensures consistent performance and extends the operational lifespan of connected devices. The use of triac switching technology ensures wear-free operation, which is particularly advantageous in applications where frequent switching cycles are required.

The terminal operates within a rotating field frequency of 47…63 Hz, ensuring compatibility with international AC power standards. Its 4-wire connection technology simplifies installation, providing secure wiring for field devices and ensuring reliable long-term operation.

Like all Beckhoff Bus Terminals, the KL2712 integrates seamlessly into the modular I/O system. It can be combined with other digital, analogue, and speciality terminals to build customised solutions for specific applications. Its compact size allows high channel density within a small footprint, making it especially valuable in cabinet designs where space efficiency is essential.

The KL2712 is ideally suited for applications in building automation, such as controlling lighting systems, HVAC components, and signalling devices. In industrial automation, it can be used to switch auxiliary circuits, low-power AC actuators, or control elements in process systems. Its dual-channel configuration allows engineers to manage multiple outputs in a cost-effective and space-saving manner.

In summary, the Beckhoff KL2712 Bus Terminal delivers a reliable and efficient solution for switching low-power AC loads in distributed automation environments. With two triac-based outputs, wide voltage compatibility, surge protection, and compact design, it provides engineers with a robust and versatile option for small-load control tasks in both industrial and building automation applications.