The Beckhoff KL2404 Bus Terminal is a versatile digital output module that delivers reliable switching functionality for automation systems. With four independent output channels, each rated at 24 V DC and up to 0.5 A, the KL2404 offers a practical and compact solution for driving a wide range of loads, from simple signal lamps to inductive actuators and control devices.

Designed for use within Beckhoff’s modular Bus Terminal system, the KL2404 simplifies system design by providing high output density in a slim housing. Its 2-wire connection technology reduces wiring complexity and supports straightforward installation, making it easier for engineers and technicians to integrate into existing or new automation cabinets.

The KL2404 is optimised for industrial applications requiring consistent and safe operation. Each channel is short-circuit-proof, with the short-circuit current limited to less than 2 A, protecting both the terminal and the connected load from damage. In addition, the breaking energy is limited to <150 mJ per channel, providing further assurance of safe switching, particularly when handling inductive or resistive loads. These features ensure long-term reliability and reduce maintenance requirements, making the terminal well-suited for continuous operation in demanding environments.

Operating at a nominal voltage of 24 V DC (-15% / +20%), the KL2404 is fully compatible with standard industrial control power supplies. It supports a broad range of load types, including ohmic, inductive, and lamp loads, giving it flexibility across different application scenarios. For example, it can be used to activate relays, control solenoid valves, operate signal lights, or switch auxiliary devices.

With its per-channel current capacity of 0.5 A, the KL2404 strikes a balance between compact design and practical load handling. It is particularly effective in applications where multiple small to medium loads must be controlled reliably from a single module. By integrating four outputs in one terminal, it reduces overall hardware costs and conserves valuable space within control cabinets.

The KL2404 also benefits from Beckhoff’s modular approach to I/O, allowing seamless integration with other Bus Terminals to build scalable, tailored automation systems. This flexibility enables engineers to expand or adapt their systems as requirements evolve, without the need for extensive redesign.

In summary, the Beckhoff KL2404 Bus Terminal offers a reliable, compact, and cost-effective solution for digital output control. With its four short-circuit-proof outputs, support for multiple load types, and straightforward wiring, it provides dependable switching performance that is essential for modern automation systems across a wide range of industries.